
ASTM B265 |
Fe max | O max | N max | C max | H max | Pd | Al | V | Mo | Ni | Elong'n | Rp 0.2 | Rm |
No | wt% | wt% | wt% | wt% | wt% | wt% | wt% | wt% | wt% | wt% | % | MPa | MPa |
Grade 1 | 0.2 | 0.18 | 0.03 | 0.1 | 0.015 | 24 | 170-310 | 240 | |||||
Grade 2 | 0.3 | 0.25 | 0.03 | 0.1 | 0.015 | 20 | 275-450 | 345-480 | |||||
Grade 3 | 0.25 | 0.3 | 0.05 | 0.1 | 0.015 | 18 | 360-480 | 480-700 | |||||
Grade 4 | 0.5 | 0.4 | 0.05 | 0.1 | 0.015 | 15 | 500-530 | 600-680 | |||||
Grade 5 | 0.4 | 0.2 | 0.05 | 0.1 | 0.015 | 5.5-6.7 | 10 | 800-1100 | 890-1400 | ||||
Grade 6 | 0.1 | 16 | 780-820 | 820-860 | |||||||||
Grade 7 | 0.3 | 0.25 | 0.03 | 0.1 | 0.015 | 0,12-0,25 | 20 | 275-450** | 345 | ||||
Grade 9 | 0.25 |