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Dimensional Tolerance Table Of Round Tube
|
標準 standard |
外徑 (mm) Outside diameter |
厚度 (mm) thickness |
外徑公差 Outside diameter tolerance |
厚度公差 (mm) thickness tolerance |
長度公差 (mm) Length Tolerance |
|
ASTM A554 |
≤12.7 | 0.51~1.24 | ±0.10 |
±10.00%T (10.00% of nominal wall thickness) |
+4.08 -0 |
| > 12.7~25.4 | 0.51~1.65 | ±0.13 | |||
| >1.65~3.40 | ±0.25 | ||||
| >25.4~38.1 | 0.64~1.65 | ±0.20 | |||
| >1.65~3.40 | ±0.25 | ||||
| >38.1~50.8 | 0.64~1.24 | ±0.25 | |||
| >1.24~2.11 | ±0.28 | ||||
|
>50.8~63.5 |
>2.11~3.78 | ±0.30 | |||
| 0.81~1.65 | ±0.30 | ||||
| >1.65~2.77 | ±0.33 | ||||
| >63.5~88.9 | .>2.77~4.19 | ±0.36 | |||
| 0.81~4.19 | ±0.36 | ||||
| >88.9~127.0 | 0.89~4.19 | ±0.51 | |||
| >4.19 | ±0.64 | ||||
| > 127.0~ 190.5 | 1.24~6.35 | ±0.64 | |||
| >6.35 | ±0.76 | ||||
| > 190.5 | ±1.0%D | ||||
|
GB/T 12770 |
< 25 | ±0.15 |
冷軋 cold rolled ≤0.50 ±0.50 ＞ 0.50~1.00 ±0.11 ＞ 1.00~2.00 ±0.17 ＞ 2.00~3.00 ±7.00%S ＞ 3.00 ±10.00%S 熱軋 hot rolled ±10.00%S |
+20.00 -0 |
|
| ≥ 25~40 | ±0.18 | ||||
| ≥40~50 | ±0.20 | ||||
| ≥ 50~60 | ±0.23 | ||||
| ≥ 60~70 | ±0.30 | ||||
| ≥70~80 | ±0.30 | ||||
| ≥ 80~90 | ±0.30 | ||||
| ≥ 90~100 | ±0.40 | ||||
| ≥ 100~200 | ±0.50%D | ||||
| ≥ 200 | 協(xié)議 To Be Agreed | ||||
| JIS G3446 | <50 | ±0.25 | ＜ 3.00±0.30 |
+50 -0 |
|
| ≥ 50 | ±0.5% | ≥ 3.00±10.00% | |||
