The development of various forms and specifications of steel pipe and hot galvanized in the manufacturing have a fundamental difference from pre-galvanized pipe made from cold rolled sheet that has been galvanized beforehand and then welded.
| PRE-GALVANIZED ROUND STEEL PIPE | ||||
| Zinc: | 40g/㎡ -150g/㎡ | |||
| Wall Thickness: | 0.5mm-15mm | |||
| Length: | 6m-12m or Customized | |||
| MORE DETAILS ABOUT PRODUCT | ||||||||
| Execute Standard | Norminal Size (mm) | Size tolerance (mm) | Thickness (mm) | Thickness tolerance (mm) | Round tolerance (mm) | Bend tolerance (mm) | Length (m) | Length tolerance (mm) |
| ASTM A500 or Company Standard | 20 | +/- 0.3 | 0.6-2.2 | +/-0.03 | ≤0.5 | ≤2mm/m | 4.0-12 | +20/-0 |
| 25 | +/- 0.3 | 0.6-2.2 | +/-0.03 | ≤0.5 | ≤2mm/m | 4.0-12 | +20/-0 | |
| 32 | +/- 0.3 | 0.6-2.2 | +/-0.03 | ≤0.5 | ≤2mm/m | 4.0-12 | +20/-0 | |
| 38 | +/- 0.3 | 0.7-2.3 | +/-0.03 | ≤0.5 | ≤2mm/m | 4.0-12 | +20/-0 | |
| 40 | +/- 0.3 | 0.7-2.3 | +/-0.03 | ≤0.5 | ≤2mm/m | 4.0-12 | +20/-0 | |
| 42 | +/- 0.3 | 0.7-2.3 | +/-0.03 | ≤0.5 | ≤2mm/m | 4.0-12 | +20/-0 | |
| 47 | +/- 0.3 | 0.8-2.3 | +/-0.03 | ≤0.5 | ≤2mm/m | 4.0-12 | +20/-0 | |
| 48.3 | +/- 0.3 | 0.8-2.3 | +/-0.03 | ≤0.5 | ≤2mm/m | 4.0-12 | +20/-0 | |
| 59 | +/- 0.3 | 0.8-2.3 | +/-0.03 | ≤0.5 | ≤2mm/m | 4.0-12 | +20/-0 | |
| 60.3 | +/- 0.3 | 0.8-2.3 | +/-0.03 | ≤0.5 | ≤2mm/m | 4.0-12 | +20/-0 | |
| 75 | +/- 0.3 | 0.8-2.3 | +/-0.03 | ≤0.5 | ≤2mm/m | 4.0-12 | +20/-0 | |
| 88 | +/- 0.3 | 0.8-2.3 | +/-0.03 | ≤0.5 | ≤2mm/m | 4.0-12 | +20/-0 | |
| 113 | +/- 0.3 | 0.8-2.3 | +/-0.03 | ≤0.5 | ≤2mm/m | 4.0-12 | +20/-0 | |
Welcome to UDREAM Steel. We provide hot&cold rolled steel, color coated steel, stainless steel and steel pipe, with ASTM, DIN, JIS, BS, GB/T steel material.
Floor 8, Bulding No.66, Xinlong Road, Vanke Hongqiao-cloud International Zone, Shanghai, China.
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