钢管种类 |
外径(D)(mm) |
壁厚(S)(mm) |
热轧管 |
φ559 |
12~30 |
φ715 |
20~40 |
|
φ914 |
30~50 |
力学性能:
标准 |
牌号 |
抗拉强度(MPa) |
屈服强度(MPa) |
屈强比 |
伸长率(%) |
冲击功Akv(J) |
硬度 |
|
Q/321088HGB3 |
4130X |
725~865 |
485~735 |
≤0.85 |
≥20 |
-40℃≥40 |
195~269HB |
|
CG15-14 |
4142 |
970~1060 |
≥850 |
≤0.95 |
≥14 |
冲击-20℃≥50 J/cm2 |
||
CG15-07 |
SA372J70 |
825~965 |
≥485 |
≥18 |
侧胀量-40℃≥0.40mm |
216~300HB |
||
W1504004 |
4145 |
605 |
396 |
28 |
186HB |
实测结果,性能数据供参考 | ||
W1504030 |
4147 |
670 |
495 |
23 |
202HB |
实测结果,性能数据供参考 |
化学成分:
标准 |
牌号 |
化学成分(%) |
|||||||||
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
Mo |
V |
||
Q/321088HGB3 |
4130X |
0.25~0.35 |
0.15~0.35 |
0.40~0.90 |
≤0.020 |
≤0.010 |
0.80~1.10 |
≤0.25 |
≤0.20 |
0.15~0.25 |
≤0.08 |
CG15-14 |
4142 |
0.40~0.45 |
0.15~0.35 |
0.75~1.00 |
≤0.020 |
≤0.010 |
0.85~1.10 |
0.15~0.25 |
|||
CG15-07 |
SA372J70 |
0.35~0.50 |
0.15~0.35 |
0.75~1.05 |
≤0.020 |
≤0.010 |
0.80~1.15 |
0.15~0.25 |
|||
W1504004 |
4145 |
0.40~0.51 |
0.13~0.38 |
0.86~1.09 |
≤0.026 |
≤0.015 |
0.95~1.20 |
0.15~0.25 |
|||
W1504030 |
4147 |
0.43~0.53 |
0.13~0.37 |
0.77~1.11 |
≤0.026 |
≤0.015 |
0.82~1.20 |
0.15~0.25 |