impurities:≤0.3
Physical properties
|
Temper |
Tensile strength Mpa |
Elongation % |
Hardness HV |
|
M |
≥290 |
≥40 |
≤90 |
|
Y4 |
235-410 |
≥35 |
85-115 |
|
Y2 |
355-460 |
≥25 |
100-130 |
|
Y |
410-540 |
≥13 |
120-160 |
|
T |
520-620 |
≥4 |
150-190 |
|
TY |
≥570 |
- |
≥180 |