精密无缝钢管...
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| 产品名称：精密无缝钢管 |
| 产品编号：— |
发布日期：
2008/5/19 |
| 产品产地：— |
产品规格：可根据用户需求定制 |
| 产品商标：— |
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| 加工形式 |
缸径 |
长度 |
直线度 |
尺寸精度 |
内孔粗糙度 |
| 冷轧 |
30-100 |
≤12M |
0.3-1.0 |
H8-H10 |
0.4-1.6 |
| 冷拔 |
30-250 |
≤12M |
H8-H10 |
0.8-1.6 |
| 珩磨 |
40-500 |
≤12M |
1000 |
H8-H9 |
0.4-0.8 |
| 滚压 |
40-400 |
≤7M |
H8 |
0.4 |
力学性能
| 钢种 |
项目 |
冷拔（轧）管 |
金切管 |
| 20 |
抗拉强度σbN/mm2 |
≥510 |
≥390 |
| 伸长率δ5% |
≥5 |
≥20 |
| 45 |
抗拉强度σbN/mm2 |
≥647 |
≥590 |
| 伸长率δ5% |
≥4 |
≥4 |
| 16Mn |
抗拉强度σbN/mm2 |
≥640 |
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| 伸长率δ5% |
≥10 |
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| 27SiMn |
抗拉强度σbN/mm2 |
≥840 |
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| 伸长率δ5% |
≥7.5 |
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尺寸公差
| 内径尺寸 |
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壁厚偏差 |
| H8 |
H9 |
H10 |
| 30 |
+0.033
0 |
+0.052
0 |
+0.084
0 |
±5% |
| ＞30-50 |
+0.039
0 |
+0.062
0 |
+0.100
0 |
| ＞50-80 |
+0.046
0 |
+0.074
0 |
+0.120
0 |
| ＞80-120 |
+0.054
0 |
+0.087
0 |
+0.140
0 |
| ＞120-180 |
+0.063
0 |
+0.100
0 |
+0.160
0 |
| ＞180-250 |
+0.072
0 |
+0.115
0 |
+0.185
0 |
| ＞250-315 |
+0.081
0 |
+0.130
0 |
+0.210
0 |
| ＞315-400 |
+0.089
0 |
+0.140
0 |
+0.230
0 |
标准规格
| 内径mm |
外径mm |
壁厚mm |
单重kg/m |
内径mm |
外径mm |
壁厚mm |
单重kg/m |
内径mm |
外径mm |
壁厚mm |
单重kg/m |
| 30 |
36 |
3 |
2.44 |
90 |
114 |
12 |
30.18 |
160 |
170 |
5 |
20.34 |
| 30 |
40 |
5 |
4.32 |
100 |
108 |
4 |
10.26 |
160 |
172 |
6 |
24.56 |
| 40 |
45 |
2.5 |
2.62 |
100 |
114 |
7 |
18.47 |
160 |
180 |
10 |
41.92 |
| 40 |
51 |
5.5 |
6.17 |
100 |
121 |
10.5 |
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