|
|
厚 度 |
寬 度 |
||
B400NQ |
B450NQ |
B460NQ、B500NQ |
|
0.8~0.99 |
900~1300 |
- |
- |
1.00~1.19 |
900~1400 |
900~1300 |
- |
1.20~1.99 |
900~1500 |
900~1400 |
900~1300 |
2.00~2.50 |
900~1600 |
900~1500 |
900~1400 |
牌 號 |
化學成分(熔煉分析) % (質量分數) |
||||||||
C |
Si |
Mn |
P |
S |
Cu |
Cr |
Ni |
Ti |
|
B400NQ |
≤0.12 |
0.10~0.40 |
0.20~0.50 |
≤0.10 |
≤0.020 |
0.25~0.45 |
0.30~0.65 |
≤0.50 |
- |
B450NQ |
≤0.12 |
0.25~0.75 |
0.20~0.50 |
0.07~0.15 |
≤0.020 |
0.25~0.55 |
0.30~1.25 |
≤0.65 |
- |
B460NQ |
≤0.10 |
0.12~0.35 |
≤1.00 |
0.06~0.12 |
≤0.020 |
0.20~0.40 |
- |
- |
≤0.10 |
B500NQ |
≤0.12 |
0.25~0.75 |
0.30~0.70 |
≤0.12 |
≤0.020 |
0.25~0.55 |
0.30~1.25 |
≤0.65 |
- |
牌 號 |
拉伸試驗a, b, |
|||
屈服強度 |
抗拉強度 |
斷后伸長率 |
180°彎曲試驗(b≥20mm)c |
|
B400NQ |
260 |
400 |
27 |
1a |
B450NQ |
310 |
450 |
26 |
1a |
B460NQ |
340 |
460 |
23 |
1a |
B500NQ |
320 |
500 |
22 |
1a |