Table of Physical, Chemical and Mechanical Properties of Stainless Steel

What makes stainless steel so essential in engineering and manufacturing? This article breaks down the physical, chemical, and mechanical properties of various grades of stainless steel. From its chemical composition to mechanical strength and thermal properties, you’ll gain a comprehensive understanding of why stainless steel is favored in diverse applications. Learn how different grades perform under stress, their heat resistance, and specific uses, equipping you with the knowledge to select the right type for your project.

Table Of Contents

Stainless Steel Chemical Composition

CategoryGradeChemical Composition (%)
 KS (JIS)CCrNiMoOthers
Austenitic301≤0.1516.0~18.06.00~8.00
301L≤0.03016.0~18.06.00~8.00N≤0.20
304≤0.0818.0~20.08.00~10.50
304J10.02~0.0516.5~17.17.5~7.9Cu1.9~2.2
304L≤0.03018.0~20.09.00~13.00
304N1≤0.0818.0~20.07.00~10.50N0.10~0.25
304N2≤0.0818.0~20.07.50~10.50Nb≤0.15
316≤0.0816.0~18.010.00~14.002.00~3.00
316L≤0.0316.0~18.012.00~15.00
321≤0.0817.0~19.09.00~13.00Ti5×C%
Ferritic409L≤0.0317.0~19.0Ti6×C%~0.75
410L≤0.0311.0~13.5
430≤0.1216.0~18.0
430J1L≤0.02516.0~20.0Nb8(C%+N%)~0.8Cu0.30~0.80
436L≤0.02516.0~19.00.75~1.25Ti、Nb、Zr8×(C%+N%)~0.8
Martensitic410≤0.1511.5~13.5
420J10.16~0.2512.0~14.0
420J20.26~0.412.0~14.0

Stainless Steel Mechanical Properties

CategoryGradeMechanical Properties
 KS (JIS)Heat Treatment ConditionsInternal Stress (N/mm2 )Tensile Strength (N/mm2 )Elongation Rate(%)Hardness
HBHRBHV
Austenitic301S≥205≥520≥40≤207≤95≤218
301LS≥215≥550≥45≤187≤90≤200
304S≥205≥520≥40≤187≤90≤200
304J1S≥155≥450≥40≤187≤90≤200
304LS≥175≥480≥40≤187≤90≤200
304N1S≥275≥550≥35≤217≤95≤200
304N2S≥345≥690≥35≤248≤100≤260
316S≥205≥520≥40≤187≤90≤200
316LS≥175≥480≥40≤187≤90≤200
321S≥205≥520≥40≤187≤90≤200
Ferritic409LA≥175≥360≥25≤162≤80≤175
410LA≥195≥360≥22≤183≤88≤200
430A≥205≥450≥22≤183≤88≤200
430J1LA≥205≥390≥22≤192≤90≤200
436LA≥245≥410≥20≤217≤96≤230
Martensitic410A≥205≥440≥20≤201≤93≤210
420J1A≥225≥520≥18≤223≤97≤234
420J2A≥225≥540≥18≤235≤99≤247

Stainless Steel Physical Properties

CategoryGradePhysical Properties
 KS (JIS)Specific Heat Capacity (J/g°C)Elastic Modulus×103 N/mm2Thermal Expansion Coefficient ×10-6  cm/cm/0C(2.0~1000C)Thermal Conductivity W/m. 0C(1000C)
Austenitic3010.519416.916.3
301L0.519416.916.3
3040.519417.316.3
304J10.519417.316.3
304L0.519417.316.3
304N10.519417.316.3
304N20.519417.316.3
3160.51941616.3
316L0.51931616.3
3210.519416.716.1
Ferritic409L0.4620011.724.9
410L0.462009.925.1
4300.4620010.426.4
430J1L0.4620010.425
436L0.4620010.425
Martensitic4100.462029.924.9
420J10.4620210.323.8
420J20.4620210.323.8

Stainless Steel Similar Grades

CategoryGradeSimilar Grades of Steel
 KS (JIS)UNSAISIDINISO
Austenitic301S30100301×12CrNi17 714
301L×2CrNi18 7
304S30400304×5CrNi18 1011
304J1
304LS30403304L×2CrNi19 1110
304N1S30451304N
304N2S30452
316S31600316×5CrNiMo17 12 220、20a
×5CrNiMo17 14 3
316LS31603316L×2CrNiMo17 13 219、19a
×2CrNiMo17 14 3
321S32100321×6CrNiTi18 1015H11
Ferritic409L
410L
430S43000430×6Cr178、H4
430J1L
436LS43600436
Martensitic410S41000410×10Cr133
420J1S42000420×20Cr134
420J2S42000420×20Cr135
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Shane
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.

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