鋼級Grade |
C≤ |
Mn |
P≤ |
S≤ |
Si≥ |
Cr≤ |
Cu≤ |
Mo |
Ni≤ |
V≤ |
A |
0.25 |
0.27-0.93 |
0.035 |
0.035 |
0.10 |
0.40 |
0.40 |
0.15 |
0.40 |
0.08 |
B |
0.30 |
0.29-1.06 |
0.035 |
0.0 |
0.10 |
0.40 |
0.40 |
0.15 |
0.40 |
0.08 |
C |
0.35 |
0.29-1.06 |
0.035 |
0.035 |
0.10 |
0.40 |
0.40 |
0.15 |
0.40 |
0.08 |
鋼號
Grade |
抗拉強度Rm Mpa
Tensile Strength |
屈服點Mpa Yield Point |
伸長率A% Elongation |
交貨狀態(tài)
Delivery Condition |
A |
≥330 |
≥205 |
20 |
Annealed |
B |
≥415 |
≥240 |
20 |
Annealed |
C |
≥485 |
≥275 |
20 |
Annealed |
鋼管類型 Pipe Type |
鋼管尺寸 Pipe Sizes |
允許偏差 Tolerances | |
冷拔管
Cold Drawn |
外徑 OD |
≤48.3mm |
±0.40mm |
≥60.3mm |
±1%mm | ||
壁厚 WT |
±12.5% |