公差表(構造管 、長管、方管、一般配管)
機械構造用不綉鋼管 CNS G3119、 JIS G3446
 項目Item規格 Specification |
外徑 Outside Diameter |
厚度 Wall Thickness |
真圓度 Round ness |
真直度 Straightness |
長度 Length |
| CNS G3119 JIS G3446 |
 50mm  0.5mm 50mm 1% |
3mm 0.3mm3mm 10% |
 10mm/6M |
 Definite Cut Lengths+50mm -0mm |
機械構造用不銹鋼管 ASTM A554
| 項目Item 規格 Specification |
外徑 Outside Diameter (mm) |
厚度 Wall Thickness (mm) |
外徑公差 Outside Diameter tolerance(mm) |
厚度 Wall Thickness (mm) |
長度 Length (mm) |
| ASTM A554 | under 12.7 | 0.51 to 1.24 | 0.10 |
10% Wall Thickness tolerance 10%of nominal wall Thickness |
Definite Cut Lengths |
| 12.7 to 25.4[incl] | 0.51 to 1.65 Over 1.65 to 3.40 |
0.13 0.25 |
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| Over 25.4 to 38.1[incl] | 0.64 to 1.65 Over 1.65 to 3.40 |
0.20 0.25 |
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| Over 38.1 to 50.8[incl] | 0.64 to 1.24 Over 1.24 to 2.11 Over 2.11 to 3.78 |
0.25 0.28 0.30 |
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| Over 50.8 to 63.5[incl] | 0.81 to 1.65 Over 1.65 to 2.77 Over 2.77 to 4.19 |
0.30 0.33 0.36 |
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| Over 63.5 to 88.9[incl] | 0.81 to 4.19 | 0.36 |
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| Over 88.9 to 127.0 [incl] | 0.89 to 4.19 | 0.51 |
不銹鋼長管&方管 ASTM A554
| 項目Item 規格 Specification |
外徑 Outside Diameter |
厚度 Wall Thickness |
對角線 Digonal |
圓弧角 Eduge radius |
真直度 Straightness |
長度 Length |
其他 Other |
| 長管方管 Rectangular tubes Square tubes |
31.8mm 0.38 31.8~63.5mm 0.5163.5mm 0.76 |
10% |
0.4mm |
2.5m/MR |
10mm/6M |
+50mm -0 |
Flatness 0.15mm |
一般配管用不銹鋼管 (壓接管) JIS G3448
| 項目Item 規格 Specification |
外徑 Outside Diameter |
厚度 Wall Thickness |
長度 Length |
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| JIS G3448 |
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Definite Cut Lengths |
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