Have you ever wondered how the hardness of different metals affects their performance in engineering applications? In this blog post, we’ll explore the Vickers hardness standards for various materials, helping you understand their suitability for your projects. Get ready to enhance your knowledge and make informed decisions in your mechanical engineering endeavors!
Stainless steel grades exhibit varying levels of hardness, a critical property that influences their machinability, wear resistance, and overall performance in diverse applications. The following table provides a comprehensive overview of the typical hardness values for common stainless steel grades.
| Material | Hardness Standard HV (Vickers) | Material | Hardness Standard HV (Vickers) |
| SUS301-CSP-1/2H | 310–370 | C2680-1/4H | 75–125 |
| SUS301-CSP-3/4H | 370–430 | C2680-1/2H | 85–145 |
| SUS301-CSP-H | 430–490 | C2680-H | 105–175 |
| SUS301-CSP-EH | ＞490 | C2680-EH | ＞145 |
| SUS304-CSP-1/2H | 250–310 | C5159-1/4H | 100–160 |
| SUS304-CSP-3/4H | 310–370 | C5159-1/2H | 150-205 |
| SUS304-CSP-H | ＞370 | C5159-H | 180–230 |
| C5159-EH | 200 | ||
| SUS631-CSP-0 | ＜200 | ||
| SUS631-CSP-1/2H | 350–400 | C2600-1/4H | 75–125 |
| SUS631-CSP-3/4H | 400–450 | C2600-1/2H | 85–145 |
| SUS631-CSP-H | ＞450 | C2600-H | 105–175 |
| C2600-EH | ≥145 | ||
| C2801-1/4H | 85-145 | ||
| C2801-1/2H | 105-160 | C2720-1/4H | 75–125 |
| C2801-H | ≥130 | C2720-1/2H | 85–145 |
| C2720-H | ≥105 | ||
| C4250-1/4H | 80–140 | ||
| C4250-1/2H | 110–170 | C5111-1/4H | 80–150 |
| C4250-3/4H | 120–180 | C5111-12H | 120–180 |
| C4250-H | 140–200 | C5111-H | 150–200 |
| C4250-EH | ≥150 | C5111-EH | 170 |
| C5102-1/4H | 90–160 | C5212-1/4H | 100–160 |
| C5102-1/2H | 130–190 | C5212-1/2H | 150–205 |
| C5102-H | 170–220 | C5212-H | 180–235 |
| C5102-EH | 190 | C5212-EH | 210 |
| C7351（C7451）-1/2H | 105–155 | C7541-1/2H | 110–170 |
| C7541-H | 135 | ||
| C7521-1/2H | 120–180 | ||
| C7521-H | 150 | C1201/1220/1221-1/4H | 55–100 |
| C1201/1220/1221-1/2H | 75–120 | ||
| C1020（C1100）-1/4H | 55–100 | C1201/1220/1221-H | ≥80 |
| C1020（C1100）-1/2H | 75–120 | ||
| C1020（C1100）-H | ≥80 |
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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