
| 材质 | 化学成分 % | ||||||||||
| C | Mn | P | Ni | Cr | Mo | S | Si | V | 采用的标准 | ||
| SAE 1020 | 0,18-0,23 | 0,30-0,60 | ≤0,040 | ≤0,050 | ASTM A29 | ||||||
| SAE 1045 | 0,45-0,50 | 0,60-0,90 | ≤0,040 | ≤0,050 | ASTM A29 | ||||||
| SAE 4130 | 0,28-0,33 | 0,40-0,60 | ≤0,035 | 0,80-1,10 | 0,15-0,25 | <0,04 | 0,15-0,35 | ASTM A29 | |||
| SAE 4140 | 0,38-0,43 | 0,75-1,00 | ≤0,035 | 0,80-1,10 | 0,15-0,25 | ≤0,04 | 0,15-0,35 | - | ASTM A29, A108 | ||
| 序号 | 物资名称 | 耐性界限, Mpa | 屈服强度, Mpa | 伸长率, % | 硬度, HRC |
| 1 | SAE 1020 | ≥395 | ≥295 | ≥36 | ≤240HB |
| 2 | SAE 1045 | 930-1050 | 830-930 | ≥15 | 283-322 HB |
| 3 | SAE 4130 | ≥670 | ≥435 | ≥25,5 | ≤92HRB |
| 4 | SAE 4140 | ≥655 | ≥415 | ≥26 | ≤220HB |
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