304不锈钢焊接管|45#精密无缝钢管力学性能
20# |
抗拉强度σbN/mm2 伸长率δ5% |
≥510 |
≥390 |
≥5 |
≥20 | ||
45# |
≥647 |
≥590 | |
≥4 |
≥4 |
尺寸公差
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 |