產品中心 Products
- 熱線
13370955554
20#45#精密無縫鋼管力學性能
鋼種 | 力學性能 | 冷拔(軋)管 | 金切管 | 20# | 抗拉強度σbN/mm2 伸長率δ5% | ≥510 | ≥390 | ≥5 | ≥20 | 45# | ≥647 | ≥590 | ≥4 | ≥4 |
加工形式 | 缸徑 | 長度 | 直線度 | 尺寸精度 | 內孔粗糙度 | 冷軋 | 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 | 滾壓 | 40-400 | ≤7M | H8 | 0.4 |
尺寸公差(壁厚偏差±5%) | 內徑尺寸 | 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 |
|
|
