(90-18)*18*0.02466=42.6公斤
76 |
23.68 |
24.74 |
25.75 |
26.71 |
- |
- |
- |
- |
- |
- |
83 |
26.44 |
27.67 |
28.85 |
29.99 |
- |
- |
- |
- |
- |
- |
89 |
28.80 |
30.19 |
31.52 |
32.80 |
34.03 |
36.35 |
38.47 |
- |
- |
- |
95 |
31.17 |
32.70 |
34.18 |
35.61 |
36.99 |
39.61 |
42.02 |
- |
- |
- |
钢种 |
力学性能 |
冷拔(轧)管 |
金切管 |
20# |
抗拉强度σbN/mm2
伸长率δ5% |
≥510 |
≥390 |
≥5 |
≥20 | ||
45# |
≥647 |
≥590 | |
≥4 |
≥4 |
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 |
尺寸公差(壁厚偏差±5%) | |||
内径尺寸 |
H8 |
H9 |
H10 |
30 |
+0.033
0 |
+0.052
0 |
+0.084
0 |
>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 |