江苏中空锚杆-流体用中空锚杆规格表
|
钢管种类 |
外径(D) |
钢管壁厚(S) | ||
|
冷拔管 |
钢管外径(mm) |
允许偏差(mm) |
钢管壁厚 (mm) |
允许偏差(mm) |
|
＞30-50 |
±0.3 |
≤30 |
±10% | |
|
＞50-219 |
±0.8% | |||
|
热轧管 |
＞219 |
±1.0% |
＞20 |
±10% |
|
标准 |
牌号 |
抗拉强度(MPa) |
屈服强度(MPa) |
伸长率(%) |
冲击功(J) |
布氏硬度(HB) |
交货状态 |
|
GB9948 |
10 |
330-490 |
≥205 |
≥24 |
/ |
/ |
正火 |
|
20 |
410-550 |
≥2铸铁/DIV> |
≥21 |
≥39 |
/ |
正火 | |
|
15CrMo |
440-640 |
≥235 |
≥21 |
≥47 |
≤170 |
正火加回火 | |
|
1Cr2Mo |
≥390 |
≥175 |
≥22 |
≥92 |
≤179 |
正火加回火 | |
|
1Cr5Mo |
≥390 |
≥195 |
≥22 |
≥92 |
≤187 |
退火 |
|
标准 |
牌号 |
化学成分 | |||||||
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni | ||
|
GB9948 |
10 |
0.07-0.14 |
0.17-0.37 |
0.35-0.65 |
≤0.035 |
≤0.035 |
≤0.15 |
/ |
≤0.25 |
|
20 |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
≤0.035 |
≤0.035 |
≤0.25 |
/ |
≤0.25 | |
|
15CrMo |
0.12-0.18 |
0.17-0.37 |
0.40-0.70 |
≤0.035 |
≤0.035 |
0.80-1.10 |
0.40-0.55 |
≤0.30 | |
|
1Cr2Mo |
≤0.15 |
0.50-1.00 |
0.30-0.60 |
≤0.035 |
≤0.030 |
2.15-2.85 |
0.铸铁0.65 |
/ | |
|
1Cr5Mo |
≤0.15 |
≤0.50 |
≤0.60 |
≤0.035 |
≤0.030 |
4.00-6.00 |
0.铸铁0.60 |
≤ | |