Classifications
Cold drawn pipe is usually divided into common cold drawn steel pipe, low and medium pressure boiler pipe, high pressure boiler pipe, alloy steel tube, stainless steel tube, petroleum cracking tube, and so on. According to the raw material, cold drawn seamless steel pipes can also be classified into carbon steel thin wall tube, alloy thin wall tube and stainless steel thin wall pipe, etc.
Specification
The sizing of our cold drawn pipe is 6m and the outer diameter ranges from 13.7mm to 101.6mm. According to different applications, we also design our cold drawn seamless steel tubes with different wall thicknesses, ranging from 2.24mm to 5.74mm.
In comparison with hot rolled seamless pipes, cold drawn seamless tube has higher size precision. As an experienced cold drawn pipe manufacturer and supplier in China, we can also make pipes with a minimum wall thickness of 0.25mm and the minimum outer diameter of our steel tubes can be 5mm. So, if you have any special need, please don't hesitate to contact us. We are confident that we can satisfy your demand.
In order to make customers better understand our cold drawn pipe, we offer the following specifications for your reference.
| Nominal diameter | Outer diameter (mm) | SCH40 (6m in sizing) | SCH80 (6m in sizing ) | SCH160 (6m in sizing ) | |||
| Wall thickness (mm) | Weight/piece (kg) | Wall thickness (mm) | Weight/piece (kg) | Wall thickness (mm) | Weight/piece (kg) | ||
| 1/4" | 13.7 | 2.24 | 3.79 | 3.02 | 4.80 | ||
| 3/8" | 17.1 | 2.31 | 5.04 | 3.20 | 6.60 | ||
| 1/2" | 21.3 | 2.77 | 7.62 | 3.73 | 9.72 | 4.78 | 11.7 |
| 3/4" | 26.7 | 2.87 | 10.14 | 3.91 | 13.2 | 5.56 | 17.4 |
| 1" | 33.4 | 3.38 | 15.00 | 4.55 | 19.44 | 6.35 | 25.44 |
| 1-1/4" | 42.2 | 3.56 | 20.34 | 4.85 | 26.82 | 6.35 | 33.66 |
| 1-1/2" | 48.3 | 3.68 | 24.30 | 5.08 | 32.46 | 7.14 | 43.5 |
| 2" | 60.3 | 3.91 | 32.64 | 5.54 | 44.88 | 8.74 | 66.66 |
| 2-1/2" | 73.0 | 5.16 | 51.78 | 7.01 | 68.46 | 9.53 | 89.52 |
| 3" | 88.9 | 5.49 | 67.74 | 7.62 | 91.62 | 11.13 | 128.1 |
| 3-1/2" | 101.6 | 5.74 | 81.42 | 8.08 | 111.78 | ||
Manufacturing process
NEW SINDA usually produces cold drawn pipe according to the following procedures.
Steel billet → heating → piercing → head making → annealing → pickling → copper plating → cold drawing → semi-finished pipes → heat treatment → straightening → water pressure test → labeling → warehouse entry.
Hebei New Sinda Pipes Manufacture Co.,Ltd is a China based cold drawn seamless pipe manufacturer, founded in 1997. Now, we have a powerful sales volume of 300 million USD every year. Over a decade years of experience enables us to know how to ensure product quality. During the past years, we have been producing our steel pipes according to ISO9001:2000 international quality management system standard. Hence, our cold drawn pipe, hot rolled pipe, spiral steel pipe, etc. are CE certified now and are well received by customers from Kenya, Korea, Brazil, America, Canada, Sweden, and Italy, to name a few.
For more detailed information, please feel free to contact us.



