Nomial Diamet | Outside diameter | Wall thickness & weight of Ordinary steel pipe | Wall thickness & weight of extra strong steel pipe | ||||
| mm | in | mm | Tolerance | mm | kg/m | mm | kg/m |
| 15 | ½ | 21.3 | ±0.5mm | 2.8 | 1.28 | 3.5 | 1.54 |
| 20 | ¾ | 26.9 | 2.8 | 1.66 | 3.5 | 2.02 | |
| 25 | 1 | 33.7 | 3.2 | 2.41 | 4.0 | 2.93 | |
| 32 | 1¼ | 42.4 | 3.5 | 3.36 | 4.0 | 3.79 | |
| 40 | 1½ | 48.3 | 3.5 | 3.87 | 4.5 | 4.86 | |
| 50 | 2 | 60.3 | ±1.0% | 3.8 | 5.29 | 4.5 | 6.19 |
| 65 | 2½ | 76.1 | 4.0 | 7.11 | 4.5 | 7.95 | |
| 80 | 3 | 88.9 | 4.0 | 8.38 | 5.0 | 10.35 | |
| 100 | 4 | 114.3 | 4.0 | 10.88 | 5.0 | 13.48 | |
| 125 | 5 | 139.7 | 4.0 | 13.39 | 5.5 | 18.20 | |
| 150 | 6 | 168.3 | 4.5 | 18.18 | 6.0 | 24.02 | |
| 200 | 8 | 219.1 | 5.0 | 26.40 | 6.0 | 31.53 | |
| 250 | 10 | 273.0 | 6.0 | 39.51 | 7.0 | 45.92 | |
| 300 | 12 | 323.9 | ±0.75% | 6.0 | 47.04 | 7.0 | 54.71 |
1. According to the customer's requirements and in the contract, Zhu Ming, the company can provide products of other sizes beyond the table and products with an average weight of zinc layer greater than 500 g/m.
2. the allowable deviation of the thickness of the steel pipe is 10% of the nominal wall thickness.
3. the ellipticity of the steel pipe is within the tolerance range of the nominal outer diameter.
4. the steel pipe is usually delivered at 6m fixed length, with a tolerance deviation of + 20mm, or can be produced according to customer requirements.
| Add： | No. 95, Yanjiang Section, Jinjiang Road, Yanjiang Village, Minmin Street, Zhongshan, Guangdong |
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| Add： | No. 95, Yanjiang Section, Jinjiang Road, Yanjiang Village, Minmin Street, Zhongshan, Guangdong |
