MFT8 | MFT9 | MFT10 | |
---|---|---|---|
C(min)(化学成份)(%) | 0.16 | 0.18 | 0.08 |
C(max)(化学成份)(%) | 0.26 | 0.26 | 0.14 |
Si(min)(化学成份)(%) | 0.2 | ||
Si(max)(化学成份)(%) | 0.3 | 0.3 | 0.35 |
Mn(min)(化学成份)(%) | 1.2 | 1.2 | 1.9 |
Mn(max)(化学成份)(%) | 1.6 | 1.6 | 2.3 |
P(max)(化学成份)(%) | 0.025 | 0.025 | 0.025 |
S(max)(化学成份)(%) | 0.015 | 0.015 | 0.015 |
V(max)(化学成份)(%) | 0.08 | 0.08 | 0.1 |
Nb(max)(化学成份)(%) | 0.1 | 0.1 | 0.2 |
Tensile strength(min)(热处理工艺)(MPa) | 630 | 680 | 800 |
Tensile strength(max)(热处理工艺)(MPa) | 700 | 750 | |
Post systolic shrinkage(min)(热处理工艺)(%) | 52 | 50 | 48 |
Elongation after fracture(min)(热处理工艺)(%) | 20 | 18 | 16 |