Common Electrode and Welding Wire Models: A Comprehensive Guide

What makes the right electrode and welding wire so crucial for a perfect weld? This guide delves into the specifics of various electrode and welding wire models, including their applications and performance characteristics. Discover how choosing the correct type can significantly enhance the quality and durability of your welds, particularly in challenging environments. From general-purpose to heat-resistant and stainless steel options, this article equips you with the essential knowledge to select the best materials for your welding needs.

Shane
August 28th, 2023
Welding

Common types of welding wires

General-purpose welding wires:

DY-YJ502(Q) – Titanium slag type flux-cored welding wire. Excellent processability and mechanical performance, suitable for all-position welding. Especially known for its excellent low-temperature toughness, achieving 3Y level certification from classification societies. Widely used in shipbuilding, steel structures, bridges, etc.
DY-YJ507(Q) – Alkaline slag type flux-cored welding wire. Excellent mechanical performance, low diffusible hydrogen content, and excellent low-temperature crack resistance. Impact toughness at -40 degrees Celsius can reach above 80. Used in mechanical manufacturing, hydropower, petrochemical equipment, etc.
DY-YJ607(Q) – Alkaline slag type flux-cored welding wire. Excellent mechanical performance, low diffusible hydrogen content, suitable for welding high-strength and high-toughness steel of 60kg grade.
YJ502CrNiCu(Q) – Titanium type flux-cored welding wire for all-position welding. Used for welding atmospheric corrosion-resistant steel, such as welding in marine platforms.
YJ502Ni(Q) – Titanium type flux-cored welding wire for all-position welding. High low-temperature impact absorption capacity, suitable for metal structures used at -40 degrees Celsius.

Heat-resistant steel series flux-cored welding wires:

DY-YR302(Q) – Titanium slag type flux-cored welding wire, suitable for welding 1Cr-0.5Mo and 1.25Cr-0.5Mo heat-resistant steels. Widely used in the boiler and pressure vessel industry.
DY-YR312(Q) – Suitable for welding 12CrMoV ferritic heat-resistant steel, widely used in the boiler and pressure vessel industry.
DY-YR317(Q) – Alkaline slag type flux-cored welding wire. Suitable for welding 12CrMoV ferritic heat-resistant steel, with excellent low-temperature impact performance.
DY-YR402(Q) – Used for welding 2.25Cr-1Mo heat-resistant steel.

Gas shielded welding wires for stainless steel:

DY-YA308(Q) – 18%Cr-8%Ni stainless steel welding.
DY-YA308L(Q) – Ultra-low carbon 18%Cr-8%Ni stainless steel welding.
DY-YA309(Q) – Transition layer welding for dissimilar steel welding or composite steel plate and overlay welding with stainless steel.
DY-YA316(Q) – 18%Cr-12%Ni stainless steel welding.

Gas shielded overlay welding flux-cored wires:

DY-YD350(Q) – Widely used for overlay welding of metal-interfacing wear parts and mild erosion wear parts, with HRC35 hardness.
DY-YD450(Q) – Suitable for overlay welding of wear-resistant to erosion and metal-interfacing wear parts, with HRC45 hardness.
DY-YD600(Q) – Widely used for wear-resistant to erosion parts, with HRC55-60 hardness.

Submerged Arc Overlay Welding Flux-Cored Wires:

DY-YD14(M) – Mainly used for repairing carbon steel and low alloy steel components or as transition layers for other overlay welding materials, with HRC26±2 hardness.
DY-YD224B(M) – Mainly used for overlay welding and repairing of hot rolling rolls and other wear-resistant components, with HRC59 hardness.
DY-YD420(M) – Martensitic type overlay welding flux-cored wire containing 13% chromium. It is corrosion-resistant and wear-resistant. Suitable for hardfacing of components such as continuous casting rolls, steam valves, wedge valves, safety valves, etc.
DY-YD423(M) – Used for hardfacing of hot rolling rolls and continuous casting rolls at higher temperatures. The overlay welding layer has excellent corrosion resistance, wear resistance, and thermal impact resistance, with HRC45-48 hardness.
DY-YD430(M) – Ferritic type overlay welding flux-cored wire containing 17% chromium. Used for corrosion-resistant hardfacing, with good resistance to high-temperature corrosion and as a base layer for stainless steel composite steel welding, with HRC23 hardness.
DY-YD414N(M) – Nitrogen-containing martensitic type overlay welding flux-cored wire, using nitrogen instead of carbon to improve its hardness and crack resistance. It has good corrosion resistance, wear resistance, and thermal impact resistance. Used for hardfacing of continuous casting rolls, with HRC43 hardness.

Stainless Steel Solid Core Welding Wires:

Stainless steel solid core welding wires can be used for both inert gas shielded welding (TIG, MIG) and submerged arc welding. MIG welding with stainless steel wires can achieve high-efficiency welding and is easily automated, making it widely used in overlay welding and thin plate joints. The chemical composition of MIG welding wires for stainless steel is the same as TIG welding wires.

However, for certain stainless steel grades, there are MIG welding wires with higher silicon (Si) content, such as ER308Si and ER309Si corresponding to ER308 and ER309 welding wires. The high Si content (around 0.8%) reduces the surface tension of the molten metal, resulting in finer droplet particles and easier droplet transfer, making the arc more stable.

Stainless Steel Spring Wires:

Stainless steel hydrogen relief wires:

When the plate thickness is less than 3mm, the arc can be started and stopped directly on the workpiece. For plate thickness greater than 3mm, for longitudinal seams, an arc-starting plate and an arc-stopping plate can be used to exclude the starting and ending zones of the small hole from the weld seam. When welding a circumferential seam, an increasing current and ion gas flow method is used to form an appropriate small hole formation zone, while a decreasing current and ion gas flow method is used to obtain the small hole ending zone. Figure 8 shows the control curve for the slope of current and ion arc gas flow rate during small hole welding. Some plasma arc equipment is equipped with advanced flow control devices that can precisely control the ion gas flow rate during the welding process.
The ion gas flow rate: Increasing the ion gas flow rate increases the plasma flow force and penetration capability. When other conditions are constant, to form a small hole, there must be sufficient ion gas flow rate. However, excessively high ion gas flow rate can enlarge the diameter of the small hole and affect the weld formation. After determining the nozzle aperture, the ion gas flow rate is determined based on the welding current and welding speed, which means that there must be an appropriate match between the ion gas flow rate, welding current, and welding speed.
Welding current: Increasing the welding current increases the penetration capability of the plasma arc. Similar to other arc welding methods, the welding current is determined based on the plate thickness or penetration requirements. If the current is too small, a small hole cannot be formed. If the current is too large, the diameter of the small hole will be too large, causing the molten metal to drop. Moreover, excessive current can cause a twin arc phenomenon. Therefore, after determining the nozzle structure, to obtain a stable small hole welding process, the welding current must be limited to a suitable range, and this range is related to the ion gas flow rate. Figure 9a shows the matching relationship between the small hole welding current and ion gas flow rate on an 8mm thick stainless steel plate when the nozzle structure, plate thickness, and other process parameters are given. Number 1 represents a regular cylindrical nozzle, and number 2 represents a converging-diverging nozzle, which reduces the nozzle compression level and expands the current range. With this type of nozzle, even at higher currents, a twin arc does not occur. The upper limit of the current is increased, allowing for thicker workpieces and higher welding speeds.
Welding speed: Welding speed is an important process parameter that affects the small hole effect. When other conditions are constant, increasing the welding speed reduces the heat input to the weld seam, resulting in a decrease in the diameter of the small hole until it disappears. Conversely, if the welding speed is too low, the base metal overheats, and defects such as sinking or molten metal leakage may occur in the back weld seam. The determination of welding speed depends on the ion gas flow rate and welding current, and the matching relationship between these three process parameters is shown in Figure 9b. From the figure, it can be seen that to obtain a smooth small hole welding seam, as the welding speed increases, the welding current must also increase. If the welding current remains constant, increasing the ion gas flow rate requires a corresponding decrease in the welding speed, and if the welding speed remains constant, increasing the ion gas flow rate should correspondingly reduce the current.
Nozzle distance: If the distance is too large, the penetration capability decreases. If the distance is too small, the nozzle can be contaminated by spatter. Generally, a distance of 3-8mm is used. Compared with tungsten inert gas (TIG) welding, changes in nozzle distance have less effect on welding quality.
Protection gas flow rate: The protection gas flow rate should be in proportion to the ion gas flow rate. When the ion gas flow rate is not large and the protection gas flow rate is too large, it will cause turbulence in the gas flow, affecting arc stability and protection effectiveness. The protection gas flow rate for small hole welding is generally within the range of 15-30L/min.

Important notes:

Chromium stainless steels have certain corrosion resistance (oxidizing acids, organic acids, erosion), heat resistance, and wear resistance. They are commonly used materials in power plants, chemical plants, petroleum industry, etc. However, the welding performance of chromium stainless steels is relatively poor, so attention should be paid to welding processes, heat treatment conditions, and the selection of suitable welding electrodes.
Chromium 13 stainless steel has significant post-weld hardening and is prone to cracking. If welding with the same type of chromium stainless steel electrodes (G202, G207), preheating above 300℃ and slow cooling treatment at around 700℃ after welding are necessary. If post-weld heat treatment is not feasible, chromium-nickel stainless steel electrodes (A107, A207) should be used.
Chromium 17 stainless steel is improved in corrosion resistance and weldability by adding a suitable amount of stabilizing elements such as titanium (Ti), niobium (Nb), molybdenum (Mo), etc. When using the same type of chromium stainless steel electrodes (G302, G307), preheating above 200℃ and tempering treatment at around 800℃ after welding are required. If post-weld heat treatment is not feasible, chromium-nickel stainless steel electrodes (A107, A207) should be used.
Chromium-nickel stainless steel electrodes have excellent corrosion resistance and oxidation resistance, widely used in the chemical, fertilizer, petroleum, and medical equipment manufacturing industries.
When welding chromium-nickel stainless steel, repeated heating can cause the precipitation of carbides, leading to reduced corrosion resistance and mechanical properties.
Chromium-nickel stainless steel electrodes come in titanium-calcium type and low hydrogen type. The titanium-calcium type can be used for both AC and DC welding, but in AC welding, the penetration depth is shallower, and it is prone to reddening. Therefore, DC power sources should be used whenever possible. Electrodes with a diameter of 4.0mm and below can be used for all-position welding, while those with a diameter of 5.0mm and above are suitable for flat welding and fillet welding.
Electrodes should be kept dry during use. Titanium-calcium type electrodes should be dried at 150℃ for 1 hour, while low hydrogen type electrodes should be dried at 200-250℃ for 1 hour (repeated drying should be avoided as it may cause cracking and peeling of the coating). It is important to prevent the electrodes from being contaminated with oil or other dirt, as this can increase the carbon content in the weld and affect the quality of the weldment.
To prevent intergranular corrosion caused by overheating, the welding current should not be too high, about 20% lower than that used for carbon steel electrodes. The arc should not be too long, and interlayer rapid cooling is desirable, making narrow weld beads more suitable.

List of steel welding materials for pressure vessels

Types	Grade	China GB	America AWS	Types	Grade	China GB	America AWS
Carbon steel welding rods	THJ422	E4303	—	Stainless steel welding rods	THA002	E308L-16	E308L-16
	THJ426	E4316	E6016		THA022	E316L-16	E316L-16
	THJ427	E4315	E6015		THA102	E308-16	E308-16
	THJ506	E5016	E7016		THA107	E308-15	E308-15
	THJ507	E5015	E7015		THA132	E347-16	E347-16
Low alloy steel welding rods	THJ506R	E5016-G	E7016-G		THA137	E347-15	E347-15
	THJ507RH	E5015-G	E7015-G		THA202	E316-16	E316-16
	THJ557R	E5MoV-15	—		THA207	E316-15	E316-15
	THJ606	E6016-D1	E9016-D1		THA212	E318-16	E318-16
	THJ607	E6015-D1	E9015-D1		THA242	E317-16	E317-16
	THW707Ni	E5515-C1	—		THA302	E309-16	E309-16
	THR207	E5515-B1	E8015-B1		THA307	E309-15	E309-15
	THR307	E5515-B2	E8015-B2		THG202	E410-16	E410-16
	THR317	E5515-B2-V	—		—	—	—
	THR407	E6015-B3	—	Gas shielded solid core welding wire	THQ-G2Si	EN440 G38 4MG2Si
	THR507	E5MoV-15	—	Gas shielded solid core welding wire	THQ-50CG4	EN440 G38 3CG4Si1

Argon arc welding wire

Grade	ModelGB	Category	Main applications:
THT49-1	ER49-1	Carbon steel welding wire	Used for butt and fillet welding of high-pressure pipes in shipbuilding, petrochemical, nuclear power, etc.
THT-10MnSi	ER50-G		Used for welding thin plates and backing welding structures.
THT50-6（TIG-J50）	ER50-6		Used for welding of pipes, flat plates, etc. requiring precise polishing.
THT55-B2	ER55-B2	Pearlitic heat-resistant steel welding wire	Used for welding of boiler heating surface tubes, steam pipes, high-pressure vessels, and structures of petroleum refining equipment operating below 550℃.
THT55-B2V	ER55-G	Pearlitic heat-resistant steel welding wire	Used for welding of boiler heating surface tubes, steam pipes, high-pressure vessels, and structures of petroleum refining equipment operating below 550℃.
THT-307THS-307	H09Cr21Ni9Mn4Mo	Stainless steel welding wire	Used for welding of bulletproof steel, cladding stainless steel, and dissimilar materials of carbon steel.
THT-307SiTHS-307Si	H10Cr21Ni10Mn6Si1		Used for welding of high manganese steel, hardened wear-resistant steel, and non-magnetic steel.
THT-308THS-308	H08Cr21Ni10Si		Used for welding of stainless steel structures such as 308, 301, 304, etc.
THT-308LTHS-308L	H03Cr21Ni10Si		Used for welding of stainless steel structures such as 304L, 308L, etc.
THT-308LSiTHS-308LSi	H03Cr21Ni10Si1		Used to improve the processability, weldability, and fluidity of the filler metal.
THT-309THS-309	H12Cr24Ni13Si		Used for welding dissimilar steels, such as carbon steel, low alloy steel, and stainless steel.
THT-309MoTHS-309Mo	H12Cr24Ni13Mo2		Used for welding of Cr22Ni12Mo2 composite steel and dissimilar steels.
THT-309LTHS-309L	H03Cr24Ni13Si		Used for welding of 309S, 1Cr13, 1Cr17, low-carbon stainless steel, low-carbon cladding steel, and dissimilar steels.
THT-309LSiTHS-309LSi	H03Cr24Ni13Si1		Used for welding of 309 stainless steel and 304 stainless steel with carbon steel.
THT-309LMoTHS-309LMo	H03Cr24Ni13Mo2		Used for welding of dissimilar steels or low toughness martensitic and ferritic stainless steels.
THT-310THS-310	H12Cr26Ni21Si		Used for welding of heat-resistant steels operating at high temperatures and for welding of 1Cr5Mo, 1Cr13, etc. that cannot be preheated or post-heat treated.
THT-312THS-312	H15Cr30Ni9		Used for welding of dissimilar cladding stainless steel, hardened low alloy steel, and in cases where welding is difficult or porosity is prone to occur.
THT-316THS-316	H08Cr19Ni12Mo2Si		Used for welding of structures in phosphoric acid, sulfuric acid, acetic acid, and salt corrosion media.
THT-316LTHS-316L	H03Cr19Ni12Mo2Si		Used for welding of chromium stainless steels and composite steels in urea, synthetic fibers, and other structures that cannot undergo heat treatment.
THT-316LSiTHS-316LSi	H03Cr19Ni12Mo2Si1		Used for welding of the same type of stainless steel and composite steel structures.
THT-317THS-317	H08Cr19Ni14Mo3		Used for welding of important corrosion-resistant chemical containers.
THT-317LTHS-317L	H03Cr19Ni14Mo3		Used for welding of important corrosion-resistant chemical containers.
THT-321THS-321	H08Cr19Ni10Ti		Used for welding of 304, 321, 347 stainless steels and heat-resistant steels.
THT-347THS-347	H08Cr20Ni10Nb		Used for welding of 304, 321, 347 stainless steels and heat-resistant steels.
THT-410THS-410	H12Cr13		Used for overlay welding of 410, 420 stainless steels and corrosion-resistant and wear-resistant surface overlays.
THT-420THS-420	H31Cr13		Used for overlay welding of corrosion-resistant materials for Cr13 martensitic stainless steels.
THT-430THS-430	H10Cr17		Used for overlay welding on surfaces of corrosion (nitric acid) and heat-resistant stainless steels.
THT-2209THS-2209	H03Cr22Ni8Mo3N		Used for welding of duplex stainless steels containing 22% Cr.

Carbon steel welding rods

Grade	ModelGB	Chemical composition of deposited metal (%)(≤)						Mechanical properties of deposited metal (≥)				Characteristics and applications
Grade	ModelGB	C	Mn	Si	S	P	Others	Rel/RP0.2MPa	RmMPa	A%	AKVJ	Characteristics and applications
J421	E4313	0.10	0.32/0.55	0.30	0.030	0.035	—	355	440/570	22	0℃47	Welding of low carbon steel structures, especially suitable for intermittent welding and fillet welding of thin plates and small components. Can be welded in all positions.
THJ421X	E4313	0.10	0.32/0.55	0.30	0.035	0.040	—	330	420	17	0℃27	Welding of low carbon steel and galvanized plates, especially suitable for vertical-down welding and intermittent welding of thin plates.
THJ421Fe18	E4324	0.12	0.30/0.60	0.35	0.035	0.040	—	330	420	17	0℃47	Suitable for flat welding and fillet welding of ship structures made of low carbon steel and other corresponding grades of common low carbon steel.
THJ422	E4303	0.10	0.32/0.55	0.25	0.035	0.040	—	330	420	22	0℃27	Welding of low carbon steel structures and low alloy steel structures of equivalent strength grade, such as 09Mn2. Can be welded in all positions.
THJ422GM	E4303	0.10	0.32/0.55	0.25	0.035	0.040	—	330	420	22	0℃27	Suitable for welding surface decorative seams of offshore platforms, ships, vehicles, and construction machinery.
THJ423	E4301	0.10	0.32/0.55	0.30	0.035	0.040	—	330	420	22	-20℃27	Similar applications as THJ422, but its vertical welding operability is slightly inferior to THJ422, and it is more affordable in price compared to THJ422.
THJ425X	E4310E4311	0.20	0.32/0.60	0.30	0.035	0.040	—	330	420	22	-30℃27	Suitable for butt welding of low carbon steel pipes and low alloy steel pipes, with vertical-down welding in all positions. Easy to perform single-sided welding and double-sided formation during bottom layer welding.
THJ426	E4316	0.10	1.25	0.90	0.035	0.040	—	330	420	22	-30℃27	Welding of important low carbon steel and low alloy steel structures, with welds having good mechanical properties and crack resistance. Can be welded in all positions.
THJ427	E4315	0.10	1.25	0.90	0.035	0.040	—	330	420	22	-30℃27	Same applications and characteristics as THJ426, using a power source with reverse polarity.
THJ501Fe15	E5024	0.12	1.25	0.90	0.035	0.040	—	400	490	17	0℃27	Welding of carbon steel and low alloy steel structures with corresponding strength, suitable for flat welding and fillet welding. The deposition efficiency is 150%.
THJ501Fe18	E5024	0.12	1.25	0.90	0.035	0.040	—	400	490	17	0℃27	The application is similar to THJ501Fe15, with a deposition efficiency of around 180%.
THJ502	E5003	0.12	1.25	0.30	0.035	0.040	—	400	490	20	0℃27	Welding of important carbon steel and low alloy steel structures with corresponding strength, can be welded in all positions.
THJ505X	E5010E5011	0.20	0.50/1.00	0.30	0.035	0.040	—	400	490	20	-30℃27	Welding of carbon steel and low alloy steel pipe circumferential seams with corresponding strength, using vertical-down welding in all positions. It is easy to perform single-sided welding and achieve double-sided formation during bottom layer welding.
THJ506	E5016	0.12	1.60	0.75	0.035	0.040	—	400	490	20	-30℃27	Suitable for all-position welding of medium carbon steel and low alloy steel structures, with welds exhibiting good mechanical and crack resistance properties.
THJ506-1	E5016-1	0.12	1.60	0.75	0.030	0.030	—	400	490	20	-46℃27	Suitable for all-position welding of low-temperature high-toughness materials.
THJ506Fe-1	E5018-1	0.10	1.60	0.65	0.030	0.030	—	420	500/640	22	-50℃47	The application is similar to THJ506-1, with the addition of iron powder in the flux coating to improve the deposition efficiency of the welding rod and enhance its process performance.
THJ506D	E5016	0.12	1.60	0.75	0.035	0.040	—	400	490	22	-30℃27	Specifically designed for bottom layer backing welding of medium carbon steel and low alloy steel structures, with easy single-sided welding and double-sided formation.
THJ506X	E5016	0.12	1.60	0.75	0.035	0.040	—	400	490	20	-30℃47	Particularly suitable for vertical-down fillet welds and lap welds, with aesthetically pleasing weld formation. Specifically designed for vertical-down welding with low hydrogen flux coating.
THJ506Fe	E5018	0.12	1.60	0.75	0.035	0.040	—	400	490	22	-30℃27	The application is similar to THJ506, suitable for all-position welding. The flux coating contains iron powder, which can improve the deposition rate.
THJ506Fe13	E5028	0.12	1.60	0.90	0.035	0.040	—	400	490	22	-20℃27	The application is the same as THJ506, suitable for flat welding and fillet welding. The flux coating contains iron powder, which can improve the deposition efficiency.
THJ506Fe16	E5028	0.12	1.60	0.90	0.035	0.040	—	400	490	22	-20℃27	The application is the same as THJ506, suitable for flat welding and fillet welding. The deposition efficiency of the welding rod is around 160%.
THJ507	E5015	0.10	0.85/1.40	0.65	0.030	0.035	—	400	490	22	-30℃47	Suitable for all-position welding of medium carbon steel and low alloy steel structures, using a power source with reverse polarity. The welds exhibit good mechanical properties and crack resistance.
THJ507-1	E5015-1	0.12	1.60	0.75	0.030	0.030	—	400	490	22	-46℃ 27	Suitable for important structures made of carbon steel or low alloy steel, as well as shipbuilding grade A, B, C, D, E steels.

Low alloy steel welding rods

Grade	ModelGB	Chemical composition of deposited metal (%) (≤)						Mechanical properties of deposited metal (≥)				Characteristics and applications:
Grade	ModelGB	C	Mn	Si	S	P	Other	Rel/RP0.2MPa	RmMPa	A%	AKVJ	Characteristics and applications:
THJ502WCu	E5003-G(TB)	0.12	0.30/0.90	0.40	0.030	0.030	Cu0.20/0.50W0.20/0.50	425(Example values)	540(Example values)	27(Example values)	-40℃35(Example values)	Weathering steel dedicated welding rods, used for welding of weather-resistant vehicles in railways.
THJ502NiCu	E5003-G(TB)	0.12	0.30/0.90	0.40	0.030	0.030	Cu0.20/0.50Ni0.20/0.50	420(Example values)	535(Example values)	27(Example values)	-40℃36(Example values)	Special welding rods for weathering steel, used for welding weathering vehicles in railways.
THJ502NiCrCu	E5003-G(TB)	0.12	0.30/0.90	0.40	0.030	0.030	Cr0.20/0.50Ni0.20/0.50Cu0.20/0.50	420(Example values)	530(Example values)	27(Example values)	-40℃36(Example values)	Mainly used for welding weather-resistant railway locomotives and vehicles.
THJ506NiCu	E5016-G(TB)	0.12	1.25	0.70	0.025	0.030	Cu0.20/0.40Ni0.20/0.50	390	490	22	-40℃27	Used for welding of carbon steel and 50Kg grade weathering steel.
THJ506NiCrCu	E5016-G(TB)	0.10	1.25	0.60	0.020	0.025	Cu0.20/0.40Cr0.30/0.80Ni0.20/0.50	400	500	22	-40℃60	Used for welding of 50Kg grade weathering steel.
THJ506NH	E5016-G	0.10	0.50/1.30	0.40	0.020	0.030	Cu0.20/0.35Mo0.30/0.50	390	490	20	-20℃47	This welding rod is a special welding rod designed for 50kg grade weather-resistant steel, mainly used for welding important steel structures that require fire and weather resistance.
THJ506NH	E5016-G	0.10	0.50/1.30	0.40	0.020	0.030	Cu0.20/0.35Mo0.30/0.50	230(600℃)	—	≥25(600℃)	—
THJ506R	E5016-G	0.10	1.00/1.50	0.50	0.025	0.030	Ni0.45/0.80	390	490	22	-40℃47	Suitable for welding important structures such as oil platforms, ships, and high-pressure vessels.
THJ506RK	E5016-G	0.10	1.00/1.50	0.50	0.025	0.030	Ni0.45/0.80	390	490	22	-40℃47	Can be used for welding low-temperature high-toughness materials.
THJ507R	E5015-G	0.10	1.00/1.50	0.50	0.025	0.030	Ni0.45/0.80	390	490	22	-40℃47	Suitable for welding important structures such as oil platforms, ships, and high-pressure vessels.
THJ507RH	E5015-G	0.10	1.60	0.50	0.025	0.025	Ni0.45/0.80	390	490	22	-40℃47	Used for welding of ships, bridges, high-pressure pipelines, pressure vessels, boilers, offshore platforms, and other important structures.
THJ507CuP	E5015-G	0.12	0.80/1.30	0.50	0.035	0.06/0.12	Cu0.20/0.50	390	490	22	-30℃27	Used for welding of steel structures that are resistant to atmospheric and seawater corrosion in the copper-phosphorus series.
THJ507MoNb	E5015-G	0.12	0.60/1.20	0.65	0.025	0.030	Mo0.30/0.60Nb0.03/0.15	390	490	22	At room temperature 47	Used for welding of steels resistant to hydrogen sulfide, hydrogen, nitrogen, ammonia, and hydrogen medium corrosion, such as 12SiMoVNb, 15MoV, etc.
THJ507MoWNbB	E5015-G	0.10	0.85/1.30	0.45	0.025	0.030	Nb0.01/0.04B0.0005/0.0015Mo0.40/0.60	390	490	22	At room temperature 47	Used for welding in medium-temperature, high-pressure, and hydrogen-resistant, ammonia-corrosive environments, such as 12SiMoVNb.
THJ556	E5516-G	0.12	≥1.00	0.30/0.70	0.025	0.030	—	440	540	17	-30℃27	Used for welding of medium carbon steel and low alloy steel structures with corresponding strength grades, such as 15MnV.
THJ556R	E5516-G	0.12	1.00/1.80	0.30/0.70	0.025	0.030	Ni0.85	440	540	17	-40℃47	Used for welding of low-temperature high-toughness materials and low alloy steels with corresponding strength grades.
THJ556RH	E5516-G	0.12	1.00/1.80	0.60	0.020	0.020	Ni0.60/1.20	440	540	17	-40℃54	Used for welding of low-temperature high-toughness materials and low alloy steels with corresponding strength grades.
THJ556NiCrCu	E5516-G(TB)	0.10	1.60	0.60	0.025	0.020	Cu0.20/0.40Cr0.30/0.90Ni0.20/0.60	440	550	22	-40℃60	Used for welding of 55kg grade weathering steel.
THJ557R	E5515-G	0.10	1.00/1.80	0.30/0.70	0.025	0.030	Ni0.85	440	540	17	-40℃47	Used for welding of carbon steel and some low alloy steel structures.
THJ557	E5515-G	0.12	1.00	0.30/0.70	0.025	0.030	—	440	540	17	-30℃47	Used for welding of medium carbon steel and some low alloy steels.
THJ557RH	E5515-G	0.12	1.00/1.80	0.60	0.020	0.020	Ni0.60/1.20	440	540	17	-40℃57	Used for welding of medium carbon steel and some low alloy steels.
THJ606	E6016-D1	0.12	1.25/1.75	0.60	0.025	0.030	Mo0.25/0.45	490	590	15	-30℃27	Welding of medium carbon steel and low alloy steel with corresponding strength grades.
THJ606NiCrCu	E5016-G(TB)	0.10	2.0	0.60	0.020	0.025	Cu0.20/0.40Cr0.30/0.90Ni0.20/0.90	550	600	20	-40℃60	Used for welding of 60Kg grade weathering steel, as well as welding of vehicles, near-shore engineering structures, bridges, etc.
THJ607	E6015-D1	0.12	1.25/1.75	0.60	0.025	0.030	Mo0.25/0.45	490	590	15	-30℃27	Used for welding of medium carbon steel and low alloy steel structures with corresponding strength grades, such as 15MnVN.
THJ607Ni	E6015-G	0.10	≥1.00	0.80	0.025	0.030	Ni1.20	490	590	15	-40℃34	Used for welding of steel structures with corresponding strength grades and susceptibility to reheat cracking.
THJ607RH	E6015-G	0.10	1.00/1.65	0.60	0.025	0.025	Ni0.65/1.20Mo0.10/0.40	490	590	15	-40℃47	Used for welding of pressure vessels, bridges, hydroelectric station penstocks, and marine engineering and other important structures.
THJ657RH	E6015-G	0.12	1.20/1.80	0.60	0.020	0.020	Ni0.80/1.40Mo0.20/0.40	540	640	15	-40℃54	Used for welding of X80 grade pipeline steel and low alloy steel structures with the same strength grade.
THJ707	E7015-D2	0.15	1.65/2.00	0.60	0.025	0.030	Mo0.25/0.45	590	690	15	-30℃27	Used for welding low alloy steel structures with corresponding strength grades, such as 15MnMoVNd.
THJ707RH	E7015-G	0.10	1.20/1.60	0.30/0.60	0.020	0.025	Ni1.40/2.00Mo0.25/0.50	590	690	15	-50℃34	Used for welding of ship structures, as well as welding of important structures such as high-strength steel.
THJ807	E8015-G	0.20	2.00	0.75	0.025	0.030	Mo0.60/1.00	690	780	13	At room temperature 27	Used for welding low alloy steels with corresponding strength grades such as 14MnMoVN.
THJ807RH	E8015-G	0.10	1.30/1.80	0.50	0.020	0.025	Mo0.30/0.60Ni2.00/2.70	685	785	17	-40℃69	Used for welding important structures made of low alloy steel with corresponding strength grades.
THJ807A	E8015-G	0.09	2.00	0.40	0.020	0.025	Mo0.80/1.10	690	780	13	-40℃34	Welding of corresponding low-strength low alloy steel structures.
THJ857	E8515-G	0.20	2.00	0.75	0.020	0.025	Mo0.60/1.00	740	830	12	At room temperature 27	Used for welding low alloy steel structures with a tensile strength equivalent to 830MPa.
THJ857Ni	E8515-G	0.10	2.10	0.75	0.015	0.020	Ni2.50/3.00	740	830	12	-40℃27	Used for welding of low alloy steel structures with tensile strength equivalent to 830MPa.
THJ857Cr	E8515-g	0.15	1.00	0.60	0.035	0.035	Cr0.70/1.10V0.05/0.15 Mo0.50/1.00	740	830	12	-40℃27	Used for welding of low alloy steel structures with tensile strength equivalent to 830MPa.
THJ857R	E8515-G	0.09	0.80/1.60	0.50	0.015	0.015	Ni2.00/2.80Mo0.30/0.80Cr0.50/1.00	740	830	14	-50℃27	Used for welding important structures made of low alloy steel with corresponding strength grades.
THJ857RH	E8515-G	0.09	0.80/1.60	0.50	0.015	0.015	Ni2.00/2.80Mo0.30/0.80Cr0.50/1.00	740	830	14	-50℃27	Used for welding important structures made of low alloy steel with corresponding strength grades.
THJ907	E9015-G	0.20	1.40/2.00	0.40/0.80	0.020	0.025	Mo0.80/1.20	780	880	12	At room temperature 27	Used for welding of low alloy high-strength steel structures with tensile strength equivalent to 880MPa.
THJ907R	E9015-G	0.10	1.20/1.60	0.40	0.020	0.025	Ni2.40/2.80Mo0.50/0.80Cr0.70/1.00V0.03/0.12	780	880	12	-30℃27	Used for welding of low alloy high-strength steel with tensile strength equivalent to 880MPa, as well as welding of pressure vessels and other components.
THJ907Cr	E9015-G	0.15	1.40/2.00	0.50	0.020	0.025	Cr0.70/1.10Mo0.50/1.10V0.05/0.15	780	980	12	At room temperature 27	Used for welding of low alloy high-strength steel structures with tensile strength equivalent to approximately 880MPa.
THJ957R	E9515-G	0.10	1.40/1.80	0.50	0.020	0.025	Ni2.40/3.00Mo0.50/0.80Cr0.70/1.00V0.03/0.12	830	930	12	-30℃27	Used for welding of low alloy high-strength steel with tensile strength equivalent to 880MPa, as well as pressure vessels and other structures.
THJ107	E1005-G	0.20	1.50/2.30	0.30/0.80	0.020	0.025	Mo0.80/1.40	880	980	12	At room temperature 27	Used for welding of low alloy high-strength steel structures with tensile strength equivalent to 980MPa.
THJ107Cr	E1005-G	0.15	1.40/2.00	0.30/0.70	0.020	0.025	Cr1.50/2.20Mo0.40/0.80V0.08/0.16	880	980	12	At room temperature 27	Used for welding of low alloy high-strength structures with tensile strength greater than 980MPa.
THJ107R	E10015-G	0.10	1.40/2.00	0.50	0.020	0.025	Ni2.40/3.20Mo0.50/0.80Cr0.70/1.00V0.03/0.12	880	980	12	-30℃27	Used for welding of low alloy high-strength steel with tensile strength equivalent to 980MPa, as well as pressure vessels and other structures.
V840	E9015-G	0.09	0.08/1.60	0.50	0.015	0.015	Mo0.30/0.80Ni2.00/2.80Cr0.50/1.00	785	_	15	-50℃27	Used for welding of important engineering structures with high strength, high toughness, and yield strength greater than 800MPa.

Low temperature steel welding rod, heat-resistant steel welding rod

Grade	ModelGB	Chemical composition of deposited metal (%) (≤)						Mechanical properties of deposited metal (≥)				Characteristics and applications:
Grade	ModelGB	C	Mn	Si	S	P	remains	Rel/RP0.2MPa	RmMPa	A%	AKVJ	Characteristics and applications:
THR106Fe	E5018-A1	0.05/0.12	0.90	0.50	0.035	0.035	Mo0.40/0.65	390	490	22	At room temperature 47	Used for welding of heat-resistant ferritic steels such as 15Mo with operating temperatures below 510°C, as well as for welding of general low alloy steels.
THR107	E5015-A1	0.12	0.90	0.50	0.035	0.035	Mo0.40/0.65	390	490	22	At room temperature 47	Used for welding of heat-resistant ferritic steels such as 15Mo with operating temperatures below 510°C.
THR202	E5503-B1	0.05/0.12	0.90	0.50	0.035	0.035	Mo0.40/0.65 Cr0.40/0.65	440	540	16	—	Used for welding of 15Mo and boiler pipelines with operating temperatures below 510°C.
THR207	E5515-B1	0.05/0.12	0.90	0.60	0.030	0.030	Mo0.40/0.65 Cr0.40/0.65	440	540	17	At room temperature 34	Used for welding of heat-resistant ferritic steels such as 12CrMo with operating temperatures below 510°C.
THR307	E5515-B2	0.05/0.12	0.90	0.60	0.020	0.030	Mo0.40/0.65Cr0.80/1.50	440	540	17	At room temperature 47	Used for welding of heat-resistant ferritic steels such as 15CrMo with operating temperatures below 520°C.
THR307A	E5515-B2	0.05/0.12	0.90	0.60	0.015	0.020	Mo0.40/0.65Cr0.80/1.50	440	540/640	20	-20℃55	Used for welding of heat-resistant ferritic steels such as 12CrMo with operating temperatures below 540°C.
THR317	E5515-B2-V	0.05/0.12	0.90	0.60	0.020	0.035	Mo0.40/0.65Cr0.80/1.50V0.10/0.35	440	540	17	At room temperature 47	Used for welding of heat-resistant ferritic steels such as 12CrMo with operating temperatures below 540°C.
THR317L	E5515-B2-V	0.05/0.12	0.90	0.60	0.015	0.020	Mo0.40/0.65Cr0.80/1.50V0.10/0.35	440	540	20	At room temperature 47	Can be welded without post-heat treatment and used for welding of heat-resistant ferritic steels such as 12CrMo with operating temperatures below 540°C.
THR317B20	E6015-G	0.05/0.15	0.70/1.50	0.80	0.025	0.030	Mo0.90/1.30Cr0.90/1.50V0.10/0.35	440	590	15	At room temperature 47	Used for welding of heat-resistant ferritic steels with Cr-Mo-V composition, such as GS17CrMov511 low alloy cast steel, with operating temperatures below 600°C.
THR337	E5515-B2-VNb	0.05/0.12	0.90	0.60	0.025	0.030	Mo0.70/1.00Cr1.00/1.50Nb0.10/0.25V0.15/0.40	440	540	17	At room temperature 47	Used for welding of heat-resistant ferritic steels such as 15CrMo with operating temperatures below 570°C.
THR347	E5515-B3-VWB	0.05/0.12	1.00	0.60	0.030	0.035	Mo0.30/0.80Cr1.50/2.50W0.20/0.60B0.001/0.003	440	540	17	At room temperature 47	Used for welding of corresponding heat-resistant steels with operating humidity below 620°C.
THR407	E6015-B3	0.05/0.12	0.90	0.60	0.035	0.035	Cr2.00/2.50Mo0.90/1.20	490	590	15	At room temperature 47	Used for welding of heat-resistant Cr2.5Mo ferritic steels.
THR417	E5515-B3-VNb	0.05/0.12	1.00	0.60	0.035	0.035	Cr2.40/3.00Mo0.70/1.00W0.25/0.50Nb0.35/0.65	440	540	17	At room temperature 27	Used for welding of corresponding heat-resistant steels with operating humidity below 620°C.
THR507	E5MoV-15	0.12	0.50/0.90	0.50	0.030	0.035	Cr4.50/6.00Mo0.40/0.70V0.10/0.35	—	520	14	—	Used for welding of heat-resistant Cr5Mo ferritic steels.
THR717B9	—	0.08/0.13	1.25	0.30	0.01	0.01	V0.15/0.30Nb0.02/0.10N0.02/0.07Cr8.0/10.5Mo0.85/1.20	530	620	17	20℃27	Used for welding of heat-resistant steel for T91/P91 pipelines and for welding of ZG1Cr10MoVNbN and other steels for supercritical turbines.
THR727	E6015-G	0.08/0.14	0.40/1.00	0.40	0.01	0.01	Cr8.0/10.0Mo0.30/0.70V0.15/0.30Nb0.02/0.07N0.02/0.07	530	620	15	20℃27	Used for the construction of supercritical and ultra-supercritical coal-fired power plants, such as the welding of heat-resistant steel and steel pipes for T92/P92 pipelines.
THW607	—	0.07	1.20/1.70	0.50	0.035	0.035	Ni0.60/1.00Ti0.03B0.003	390	490	22	-60℃27	Used for welding of low-temperature steel structures, such as 09MnNiN6, which are designed for applications operating at -60℃.
THW707Ni	E5515-C1	0.12	1.25	0.60	0.035	0.035	Ni2.00/2.75	440	540	17	-70℃27	Used for welding of 09Mn2v06MnVA1 and 3.5Ni steel, which are used for applications operating at -70°C.
THW107Ni	—	0.08	≈0.5	0.30	0.020	0.020	Ni4.00/5.50Mo≈0.30Cu≈0.50	340	490	16	-100℃27	Welding of 06A1NbCuN06NnNb and 3.5Ni steel, which are used for applications operating at -100°C.

Stainless steel welding rods

Grade	ModelGB	Chemical composition of deposited metal (%)(≤)									Mechanical properties of deposited metal (≥)		Characteristics and applications:
Grade	ModelGB	C	Mn	Si	S	P	Cr	Ni	Mo	Other	RmMPa	A%	Characteristics and applications:
THG202	E410-16	0.12	1.0	0.90	0.030	0.040	11.0/13.5	0.7	0.75	Cu0.75	450	20	Used for welding of OCr13 and ICr13 stainless steel structures, and can also be used for overlay welding of corrosion and wear-resistant surfaces. (The deposited and heat-treated samples are heated to 860°C for 2 hours, followed by slow cooling to 600°C, and then air-cooling.)
THG207D	E410-15	0.12	1.0	0.90	0.030	0.030	11.0/13.5	0.7	0.75	Cu0.75	520	35	Mainly used for overlay welding of valve sealing parts.
THA002	E308L-16	0.04	0.5/2.5	0.90	0.030	0.040	18.0/21.0	9.0/11.0	0.75	Cu0.75	520	35	Used for welding of ultra-low carbon 00Cr9Ni11 stainless steel and 00Cr18Ni9 steel structures, such as synthetic fiber, fertilizer, and petroleum equipment.
THA002R	E308L-17	0.04	0.5/2.5	0.90	0.030	0.040	18.0/21.0	9.0/11.0	0.75	Cu0.75	520	35	Mainly used in the manufacturing of equipment for synthetic fibers, fertilizers, petroleum, and other industries.
THA022	E316L-16	0.04	0.5/2.5	0.90	0.030	0.040	17.0/20.0	11.0/14.0	2.0/3.0	Cu0.75	490	30	Primarily used in the manufacturing of equipment for synthetic fiber, fertilizer, and petroleum industries.Also used for welding of equipment for urea and synthetic fiber production, as well as stainless steel structures of the same type.
THA022Used for applications in cryogenic environments.	E316L-16	0.04	0.5/2.5	0.90	0.030	0.040	17.0/20.0	11.0/14.0	2.0/3.0	Cu0.75	490	30	Used for welding of equipment for urea and synthetic fiber production, as well as stainless steel structures of the same type. It can also be used for stainless steel structures used at cryogenic temperatures.
THA022R	E316L-17	0.04	0.5/2.5	0.90	0.030	0.040	17.0/20.0	11.0/14.0	2.0/3.0	Cu0.75	490	30	Used for welding of equipment for urea and synthetic fiber production, as well as stainless steel structures of the same type.
THA032	E317MoCuL-16	0.04	0.5/2.5	0.90	0.030	0.035	18.0/21.0	12.0/14.0	2.0/2.5	Cu0.20	540	25	Used for welding of equipment for synthetic fiber production, such as welding of stainless steel structures of the same type with ultra-low carbon content, which work in dilute to medium concentration sulfuric acid media.
THA042	E309MoL-16	0.04	0.5/2.5	0.90	0.030	0.040	22.0/25.0	12.0/14.0	2.0/3.0	Cu0.75	540	25	Used for welding of stainless steel structures of the same type with ultra-low carbon content, as well as for welding of dissimilar steels.
THA052	—	0.04	2.00	1.00	0.030	0.040	17.0/22.0	22.0/27.0	4.0/5.0	Cu2.0	490	25	Used for welding reactors, separators, and other equipment that are chemically resistant to sulfuric acid, acetic acid, phosphoric acid, as well as for welding of corrosion-resistant steel used in seawater environments.
THA062	E309L-16	0.04	0.5/2.5	0.90	0.030	0.040	22.0/25.0	12.0/14.0	0.75	Cu0.75	520	25	Used for welding stainless steel structures of the same type, composite steel, and dissimilar steels in the manufacturing of equipment for synthetic fiber, petroleum, chemical, and other industries.
THA072	—	0.04	1.0/2.0	0.80	0.030	0.030	27.0/29.0	14.0/16.0	—	—	540	25	Used for welding of 00Cr25Ni20Nb steel, such as nuclear fuel equipment, and so on.
THA092	E385-16	0.03	1.0/2.5	0.75	0.020	0.030	19.5/21.5	24.0/26.0	4.2/5.2	Cu1.2/2.0	520	30	Mainly used in the manufacturing of towers, tanks, pipelines, heat exchangers, and other equipment. It has excellent resistance to pitting corrosion in various strong acids and hot acids.
THA102	E308-16	0.08	0.5/2.5	0.90	0.030	0.040	18.0/21.0	9.0/11.0	0.75	Cu0.75	550	35	Used for welding of corrosion-resistant stainless steel structures such as Cr19Ni9 and OCr19Ni11Ti, which operate at temperatures below 300℃.
THA102Used for applications in cryogenic environments.	E308-16	0.08	0.5/2.5	0.90	0.030	0.040	18.0/21.0	9.0/11.0	0.75	Cu0.75	620（Example values:）	42（Example values）	Used for welding of corrosion-resistant stainless steel structures such as Cr19Ni9 and OCr19Ni11Ti, which operate at temperatures below 300°C. It can also be used for stainless steel structures used in cryogenic environments.
THA102Used for applications in cryogenic environments.	E308-16	0.08	0.5/2.5	0.90	0.030	0.040	18.0/21.0	9.0/11.0	0.75	Cu0.75	620（Example values:）	-196℃（Example values）AKJ45J
THA102B（Example values）	E308-16	0.05	2.50	0.80	0.015	0.016	18.50	10.50	0.15	—	560	38	Mainly used for welding of structures with low magnetic permeability or non-magnetic steel.
THA102R	E308-16	0.08	0.5/2.5	0.90	0.030	0.040	18.0/21.0	9.0/11.0	0.75	Cu0.75	550	35	Used for welding of corrosion-resistant stainless steel structures such as 0Cr19Ni9 and 0Cr19Ni11Ti, which operate at temperatures below 300°C.
THA107	E308-15	0.08	0.5/2.5	0.90	0.030	0.040	18.0/21.0	9.0/11.0	0.75	Cu0.75	550	35	Used for welding of corrosion-resistant 0Cr19Ni9 stainless steel structures operating at temperatures below 300°C. It can also be used for welding some steels with poor weldability and for overlay welding of stainless steel surface layers.
THA112	—	0.12	2.50	1.50	0.035	0.040	17.0/22.0	7.0/11.0	—	—	540	25	Used for welding of Cr19Ni9 stainless steel structures with general corrosion resistance requirements.
THA117	—	0.12	2.50	1.50	0.030	0.040	17.0/22.0	7.0/11.0	—	—	540	25	Used for welding of Cr18Ni9 stainless steel structures with general corrosion resistance requirements.
THA122	—	0.08	2.50	1.50	0.030	0.040	20.0/24.0	7.0/11.0	—	—	540	25	Used for welding of OCr19Ni9 stainless steel structures with high resistance to cracking and corrosion, operating at temperatures below 300°C.
THA132	E347-16	0.08	0.5/2.5	0.90	0.030	0.040	18.0/21.0	9.0/11.0	0.75	Cu0.75 Nb8×C- 1.00	520	25	Used for welding of important corrosion-resistant OCr19Ni11Ti stainless steel structures containing titanium stabilizer.
THA132R	E347-17	0.08	0.5/2.5	0.90	0.030	0.040	18.0/21.0	9.0/11.0	0.75	Cu0.75Nb8×C- 1.00	520	25	Used for welding of important corrosion-resistant 0Cr19Ni11Ti stainless steel containing titanium stabilizer.
THA137	E347-15	0.08	0.5/2.5	0.90	0.030	0.040	18.0/21.0	9.0/11.0	0.75	Cu0.75 Nb8×C- 1.00	520	25	Used for welding of important corrosion-resistant OCr19Ni11Ti stainless steel structures containing titanium stabilizer.
THA 146	—	0.12	4.0/7.0	0.90	0.035	0.040	19.0/22.0	8.0/11.0	—	—	540	20	Used for welding of important corrosion-resistant OCr20Ni10Mn6 stainless steel containing titanium stabilizer.
THA 146	—	0.12	4.0/7.0	0.90	0.035	0.040	19.0/22.0	8.0/11.0	—	—	540	20
THA172	E307-16	0.04/0.14	3.30/4.75	0.90	0.030	0.040	18.0/21.5	9.0/10.7	0.5/1.5	Cu0.75	590	30	Suitable for welding of ASTM307 steel and other dissimilar steels. It can also be used for overlay welding of impact-resistant corrosion-resistant steel and transition layers.
THA202	E316-16	0.08	0.5/2.5	0.09	0.030	0.040	17.0/20.0	11.0/14.0	2.0/3.0	Cu0.75	520	30	Used for welding of OCr18Ni2Mo2 stainless steel structures and dissimilar steel structures that work in organic and inorganic acid media.
THA202R	E316-17	0.08	0.5/2.5	0.90	0.030	0.040	17.0/20.0	11.0/14.0	2.0/3.0	Cu0.75	520	30	Used for welding of 0Cr18Ni12Mo2 stainless steel that works in organic and inorganic acid media or as a dissimilar steel weld.
THA207	E316-15	0.08	0.5/2.5	0.90	0.030	0.040	17.0/20.0	11.0/14.0	2.0/3.0	Cu0.75	520	30	Used for welding of low carbon OCr18Ni12Mo2 stainless steel structures, high-chromium acid-resistant steel, and dissimilar steels.
THA 212	E318-16	0.08	0.5/2.5	0.90	0.030	0.040	17.0/20.0	11.0/14.0	2.0/3.0	Nb6×C/1.00	550	25	Used for welding of critical components of stainless steel equipment such as urea synthesis towers and vinyl equipment, which are in contact with strong corrosive media.
THA222	E317MoCu-16	0.08	0.5/2.5.	0.90	0.030	0.035	18.0/21.0	12.0/14.0	2.0/2.5	Cu2.0	540	25	Used for welding of stainless steel structures of the same type containing copper, such as 0Cr18Ni12Mo2Cu.
THA232	E318V-16	0.08	0.5/2.5	0.90	0.030	0.035	17.0/20.0	11.0/14.0	2.0/2.5	Cu0.5V0.30/0.70	540	25	Used for welding of general heat-resistant and corrosion-resistant stainless steel structures, such as Cr19Ni10 and Cr18Ni12Mo2.
THA237	E318V-15	0.08	0.5/2.5	0.90	0.030	0.035	17.0/20.0	11.0/14.0	2.0/2.5	Cu0.5V0.30/0.70	540	25	Used for multi-layer welding of general heat-resistant and corrosion-resistant stainless steel structures, such as Cr19Ni10 and Cr18Ni12Mo2.
THA242	E317-16	0.08	0.5/2.5	0.90	0.030	0.040	22.0/25.0	12.0/14.0	3.0/4.0	Cu0.75	550	25	Used for welding of stainless steel materials of the same type, as well as composite steel and dissimilar steels.
THA302	E309-16	0.15	0.5/2.5	0.90	0.030	0.040	22.0/25.0	12.0/14.0	0.75	Cu0.75	550	25	Used for welding of stainless steel structures of the same type, as well as dissimilar steels, high-chromium steel, high-manganese steel, and others.
THA302R	E309-17	0.15	0.5/2.5	0.90	0.030	0.040	22.0/25.0	12.0/14.0	0.75	Cu0.75	550	25	Used for welding of stainless steel of the same type, stainless steel cladding, dissimilar steels, as well as high-alloy steel and high-manganese steel.
THA307	E309-15	0.15	0.5/2.5	0.90	0.030	0.040	22.0/25.0	12.0/14.0	0.75	Cu0.75	550	25	Used for welding of stainless steel structures of the same type, as well as for welding of dissimilar steels such as high-chromium steel and high-manganese steel.
THA312	E309Mo-16	0.12	0.5/2.5	0.90	0.030	0.040	22.0/25.0	12.0/14.0	2.0/3.0	Cu0.75	550	25	Used for welding of stainless steel containers of the same type that are resistant to sulfuric acid media (sulfur-ammonia) corrosion, as well as for welding of composite steel dissimilar steels.
THA402	E310-16	0.08/0.20	1.0/2.5	0.75	0.030	0.030	25.0/28.0	20.0/22.5	0.75	Cu0.75	550	25	Used for welding of heat-resistant stainless steels of the same type operating under high-temperature conditions. It can also be used for welding of high-hardness chromium steels (Cr13) and dissimilar steels.
THA407	E310-15	0.08/0.20	1.0/2.5	0.75	0.030	0.030	25.0/28.0	20.0/22.5	0.75	Cu0.75	550	25	Used for welding of heat-resistant stainless steels of the same type operating under high-temperature conditions. It can also be used for welding of high-hardness chromium steels and dissimilar steels.
THA412	E310Mo-16	0.12	1.0/2.5	0.75	0.030	0.030	25.0/28.0	20.0/22.0	2.0/3.0	Cu0.75	550	25	Used for welding of heat-resistant stainless steels of the same type and dissimilar steels, as well as stainless steel cladding, operating under high-temperature conditions.
THA502	E16-25MoN-16	0.12	0.5/2.5	0.90	0.030	0.035	140./18.0	22.0/27.0	5.0/7.0	Cu0.50N≥0.1	420	30	Used for welding of low alloy, medium alloy, and dissimilar steels in a quenched state, such as 30CrMnSi, as well as stainless steel and carbon steel welding.
THA507	E16-2MoN-15	0.12	0.5/2.5	0.90	0.030	0.035	14.0/18.0	22.0/27.0	5.0/7.0	Cu0.50N≥0.1	420	30	Used for welding of low alloy, medium alloy, and dissimilar steels in a quenched state, such as 30CrMnSi, as well as stainless steel and carbon steel welding.
THA802	—	0.10	2.5	1.00	0.030	0.035	18.0/21.0	17.0/19.0	3.0/5.0	Cu1.5/2.5	540	25	Used for welding pipelines of synthetic rubber manufactured with a sulfuric acid concentration of 50% and certain working temperatures and pressures, as well as steel grades such as Cr18Ni18Mo2Cu2Ti.
THAF312	E312-16	0.15	0.5/2.5	0.90	0.030	0.040	28.0/32.0	8.0/10.5	0.75	Cu0.75	660	22	Can be used for welding of high carbon steel, tool steel, high temperature steel, armor steel, dissimilar steels, and more.
THAF2209	E2209-16	0.04	0.5/2.0	0.90	0.030	0.040	21.5/23.5	8.5/10.5	2.5/3.5	N0.08/0.20Cu0.75	690	20	Suitable for welding of super low carbon stainless steel materials in the petrochemical and chemical industries.

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Author

Shane

Founder of MachineMFG

As the founder of MachineMFG, I have dedicated over a decade of my career to the metalworking industry. My extensive experience has allowed me to become an expert in the fields of sheet metal fabrication, machining, mechanical engineering, and machine tools for metals. I am constantly thinking, reading, and writing about these subjects, constantly striving to stay at the forefront of my field. Let my knowledge and expertise be an asset to your business.