一、SA203化学成分 (%)
条件 |
最小 |
最大 |
近似 |
注释 |
C |
- |
0.1700 |
- |
For t < 50 mm; For 50 < t <= 100 mm, C max. = 0.20%; For t > 100 mm, C max. = 0.23%; For both analysis |
Mn |
- |
0.7000 |
- |
For t < 50 mm; Product analysis: 0.78% max; For t > 50 mm Mn max. = 0,80 %; Product analysis: 0.88% max |
P |
- |
0.0350 |
- |
for both analysis |
S |
- |
0.0350 |
- |
for both analysis |
Si |
0.1500 |
0.4000 |
- |
Product analysis: 0.13-0.45% |
Ni |
2.1000 |
2.5000 |
- |
Product analysis: 2.03-2.57% |
二、SA203机械性能
|
最小 |
最大 |
近似 |
Plates; 正火; t < 150 mm |
|||
屈服强度, Rp0,2 (MPa) |
255 |
- |
- |
抗拉强度, Rm (MPa) |
450 |
585 |
- |
伸长率, A (%) |
23 |
- |
- |
Lo = 50mm; A min = 19% in Lo = 200mm |
|||
断面收缩率 (%) |
- |
- |
- |
冲击功, Kv/Ku (J) |
27 |
- |
- |
Charpy V Notch 20°C |
三、SA203机械性能
|
最小 |
最大 |
近似 |
Plates; 淬火和回火; > 50 < 100 mm |
|||
屈服强度, Rp0,2 (MPa) |
345 |
- |
- |
抗拉强度, Rm (MPa) |
515 |
655 |
- |
伸长率, A (%) |
20 |
- |
- |
Lo = 50mm |
|||
断面收缩率 (%) |
- |
- |
- |
冲击功, Kv/Ku (J) |
- |
- |
- |
Plates; 淬火和回火; t < 50 mm |
|||
屈服强度, Rp0,2 (MPa) |
380 |
- |
- |
抗拉强度, Rm (MPa) |
550 |
690 |
- |
伸长率, A (%) |
20 |
- |
- |
Lo = 50mm |
|||
断面收缩率 (%) |
- |
- |
- |
冲击功, Kv/Ku (J) |
- |
- |
- |