法兰材质详解
ASTM A516 中、低温压力容器用碳钢板
化学成分,%
元素 |
55 (380)级 |
60 (415)级 |
65 (450)级 |
70 (485)级 |
||
C |
板厚≤12.5mm |
≤0.18 |
≤0.21 |
≤0.24 |
≤0.27 |
|
板厚>12.5mm |
≤0.20 |
≤0.23 |
≤0.26 |
≤0.28 |
||
板厚≤50-100mm |
≤0.22 |
≤0.25 |
≤0.28 |
≤0.30 |
||
板厚≤100-200mm |
≤0.24 |
≤0.27 |
≤0.29 |
≤0.31 |
||
板厚>200mm |
≤0.26 |
≤0.27 |
≤0.29 |
≤0.31 |
||
Mn |
板厚≤12.5mm |
熔炼分析 |
0.60-0.90 |
0.60-0.90 |
0.85-1.20 |
0.85-1.20 |
成品分析 |
0.55-0.98 |
0.55-0.98 |
0.79-1.30 |
0.79-1.30 |
||
板厚>12.5mm |
熔炼分析 |
0.60-1.20 |
0.85-1.20 |
0.85-1.20 |
0.85-1.20 |
|
成品分析 |
0.55-1.30 |
0.79-1.30 |
0.79-1.30 |
0.79-1.30 |
||
P |
≤0.035 |
≤0.035 |
≤0.035 |
≤0.035 |
||
S |
≤0.035 |
≤0.035 |
≤0.035 |
≤0.035 |
||
Si |
熔炼分析 |
0.15-0.40 |
0.15-0.40 |
0.15-0.40 |
0.15-0.40 |
|
成品分析 |
0.13-0.45 |
0.13-0.45 |
0.13-0.45 |
0.13-0.45 |
拉伸性能:
项目 |
55 (380)级 |
60 (415)级 |
65 (450)级 |
70 (485)级 |
抗拉强度, ksi(Mpa) |
55-75 (380-515) |
60-80 (415-550) |
65-85 (450-585) |
70-90 (485-620) |
屈服强度, ksi(Mpa) |
≥30(205) |
≥32(220) |
≥35(240) |
≥38(260) |
伸长率(标距8in. 或200mm), % |
≥23 |
≥21 |
≥19 |
≥17 |
伸长率(标距2in. 或50mm), % |
≥27 |
≥25 |
≥23 |
≥21 |