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| Boiler Steel Tubes & Pipes |
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| Item |
Standard |
Size Scope |
Tolerance |
| Outside Diamter |
DIN17175 |
Hot Rolled |
D ≤ 100mm |
± 0.75% (min ± 0.5mm) |
| D ＞ 100-320mm |
± 0.9% |
| Cold Drawn: D ≤ 120mm |
± 0.6% (min ± 0.25mm) |
| ASME SA-192M, ASME SA-209M, ASME SA-210M, ASME SA-213M, ASME SA-335M, JIS G 3461 |
Hot Rolled |
D ＜ 100mm |
+0.4 -0.8mm |
| D ≥ 100 ＜ 160mm |
+0.4 -1.2mm |
| D ≥ 160 ＜ 200mm |
+0.4 -1.8mm |
| D ≥ 200 mm |
+0.4 -2.4mm |
| Cold Drawn |
D ＜ 25mm |
± 0.10 mm |
| D ≥ 25 ＜ 40mm |
± 0.15 mm |
| D ≥ 40 ＜ 50mm |
± 0.20 mm |
| D ≥ 50 ＜ 60mm |
± 0.25 mm |
| D ≥ 60 ＜ 80mm |
± 0.30 mm |
| ASME SA-106 |
D 10.3-48.3mm |
± 0.40 mm |
| D ＞ 48.3-114.3mm |
± 0.79 mm |
| D ＞ 114.3-219.1mm |
+1.59 -0.79mm |
| D ＞ 219.1-457mm |
+2.38 -0.79mm |
| Wall Thickness |
DIN17175 |
D ≤ 130mm |
S ≤ 2Sn |
+15% -10% |
| S ＞ 2Sn-4Sn |
+12.5% -10% |
| S ＞ 4Sn |
± 9% |
| 130 ＜ D ≤ 320mm |
S ≤ 0.05D |
+17.5% -12.5% |
| 0.05D ＜ S ≤ 0.11D |
± 12.5% |
| S ＞ 0.11D |
± 10% |
| ASME SA-192M, ASME SA-209M, ASME SA-210M, ASME SA-213M, ASME SA-335M, JIS G 3461 |
Hot Rolled |
S ≥ 2 ＜ 2.4mm, and D ＜ 100 |
+40 -0% |
| S ≥ 2.4 ＜ 3.8mm |
+35 -0% |
| S ≥ 3.8 ＜ 4.6mm |
+33 -0% |
| S ≥ 4.6mm |
+28 -0% |
| Cold Drawn |
D ＜ 40 |
S ＜ 2mm |
+0.4 -0mm |
| S ≥ 2mm |
+20 -0% |
| D ≥ 40 |
+22 -0% |
| ASME SA-106 |
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-12.5% |
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