Stainless Steel Hardness Chart
According to ASME SA213/SA213M, ASTM A370, ASME SA789 / SA789M
Stainless Steel Mechanical Properties
| Grade | Tensile Strength min. ksi [MPa] | Yield Strength min. ksi [MPa] | Elongation in 2in or 50mm length % (min) | Hardness (Max) ASTM E18 Brinell | Hardness (Max) ASTM E18 Rockwell |
| 201 | 95 [655] | 38 [260] | 35 | 219 HBW | 95 HRB |
| 304 | 75 [515] | 30 [205] | 35 | 192 HBW | 90 HRB |
| 304L | 70 [485] | 25 [170] | 35 | 192 HBW | 90 HRB |
| 304H | 75 [515] | 30 [205] | 35 | 192 HBW | 90 HRB |
| 304N | 80 [550] | 35 [240] | 35 | 192 HBW | 90 HRB |
| 309S | 75 [515] | 30 [205] | 35 | 192 HBW | 90 HRB |
| 309H | 75 [515] | 30 [205] | 35 | 192 HBW | 90 HRB |
| 310S | 75 [515] | 30 [205] | 35 | 192 HBW | 90 HRB |
| 310H | 75 [515] | 30 [205] | 35 | 192 HBW | 90 HRB |
| 316 | 75 [515] | 30 [205] | 35 | 192 HBW | 90 HRB |
| 316L | 70 [485] | 25 [170] | 35 | 192 HBW | 90 HRB |
| 316H | 75 [515] | 30 [205] | 35 | 192 HBW | 90 HRB |
| 316Ti | 75 [515] | 30 [205] | 35 | 192 HBW | 90 HRB |
| 317 | 75 [515] | 30 [205] | 34 | 192 HBW | 90 HRB |
| 317L | 75 [515] | 30 [205] | 35 | 192 HBW | 90 HRB |
| 321 | 75 [515] | 30 [205] | 35 | 192 HBW | 90 HRB |
| 321H | 75 [515] | 30 [205] | 35 | 192 HBW | 90 HRB |
| 347 | 75 [515] | 30 [205] | 35 | 192 HBW | 90 HRB |
| TP347H | 75 [515] | 30 [205] | 35 | 192 HBW | 90 HRB |
| N08904 | 71 [490] | 31 [215] | 35 | 192 HBW | 90 HRB |
| N08020 | 80 [550] | 35 [240] | 30 | 217 HBW | 95 HRB |
| 800 N08800 Cold Work | 75 [515] | 30 [205] | 30 | 192 HBW | 90 HRB |
| 800H N08810 | 65 [450] | 25 [170] | 30 | 192 HBW | 90 HRB |
| 800HT N08811 | 65 [450] | 25 [170] | 30 | 192 HBW | 90 HRB |
| N10276 | 100 [690] | 41 [283] | 40 | ||
| N06022 | 100 [690] | 45 [310] | 45 | ||
| S31803 | 90 [620] | 65 [450] | 25 | 290 HBW | 30 HRC |
| S31803 | 90 [620] | 65 [450] | 25 | 290 HBW | 30 HRC |
| S32101 | 101 [700] Wall≤0.187 in. [5.00 mm] | 77 [530] Wall≤0.187 in. [5.00 mm] | 30 | 290 HBW | 30 HRC |
| S32205 | 95 [655] | 70 [485] | 25 | 290 HBW | 30 HRC |
| S32550 | 110 [760] | 80 [550] | 15 | 297 HBW | 31 HRC |
| S32304 | 100 [690] OD 1 in. [25 mm] and Under 87 [600] OD over 1 in. [25 mm] | 65 [450] OD 1 in. [25 mm] and Under 58 [400] OD over 1 in. [25 mm] | 25 25 | … 290 HBW | … 30 HRC |
| S32750 | 116 [800] | 80 [550] | 15 | 300 HBW | 32 HRC |
| S32760 | 109 [750] | 80 [550] | 25 | 300 HBW | … |
1Mpa=144.55psi
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