Grade and Chemical Composition (％)
|
Grade |
C |
Mn |
P≤ |
S≤ |
Si |
Cr |
Mo |
|
1008 |
≤0.10 |
0.30-0.50 |
0.040 |
0.050 |
- |
- |
- |
|
1010 |
0.08-0.13 |
0.30-0.60 |
0.040 |
0.050 |
- |
- |
- |
|
1018 |
0.15-0.20 |
0.60-0.90 |
0.040 |
0.050 |
- |
- |
- |
|
1020 |
0.18-0.23 |
0.30-0.60 |
0.040 |
0.050 |
- |
- |
- |
|
1025 |
0.22-0.28 |
0.30-0.60 |
0.040 |
0.050 |
- |
- |
- |
|
1026 |
0.22-0.28 |
0.60-0.90 |
0.040 |
0.050 |
- |
- |
- |
|
4130 |
0.28-0.33 |
0.40-0.60 |
0.040 |
0.040 |
0.15-0.35 |
0.80-1.10 |
0.15-0.25 |
|
4140 |
0.38-0.43 |
0.75-1.00 |
0.040 |
0.040 |
0.15-0.35 |
0.80-1.10 |
0.15-0.35 |
Mechanical Properties：
|
|
|
MPa |
|
|
|
1020 |
CW |
≥414 |
≥483 |
≥5% |
|
|
SR |
≥345 |
≥448 |
≥10% |
|
|
A |
≥193 |
≥331 |
≥30% |
|
|
N |
≥234 |
≥379 |
≥22% |
|
1025 |
CW |
≥448 |
≥517 |
≥5% |
|
|
SR |
≥379 |
≥483 |
≥8% |
|
|
A |
≥207 |
≥365 |
≥25% |
|
|
N |
≥248 |
≥379 |
≥22% |
|
4130 |
SR |
≥586 |
≥724 |
≥10% |
|
|
A |
≥379 |
≥517 |
≥30% |
|
|
N |
≥414 |
≥621 |
≥20% |
|
4140 |
SR |
≥689 |
≥855 |
≥10% |
|
|
A |
≥414 |
≥552 |
≥25% |
|
|
N |
≥621 |
≥855 |
≥20% |
