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The mean allowed deviation of the tube outer diameter and alloy copper tubes. |
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| 外径 |
平均外径允许偏差±mm |
| 普通级 |
高精度 |
3-15 |
0.09 |
0.05 |
＞15-25 |
0.10 |
0.06 |
＞25-50 |
0.15 |
0.08 |
＞50-100 |
0.20 |
0.10 |
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| The mean allowed deviation of the tube wall drawing and alloy coppertubes. |
| 铜壁厚管 |
厚壁公差mm |
| 普通级 |
高精度 |
0.2-0.5 |
±0.02-0.05 |
±0.01-0.03 |
0.5-0.8 |
±0.05-0.08 |
±0.02-0.05 |
0.8-1.5 |
±0.08-0.15 |
±0.05-0.12 |
1.5-2.5 |
±0.15-0.25 |
±0.12-0.20 |
| 2.5-4 |
±0.25-0.40 |
±0.20-0.30 |
| 4-10 |
±0.40-0.60 |
±0.20-0.40 |
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