Hebei Huayang Steel Pipe Co., Ltd is one of the leading manufacturers and suppliers of api 5l psl1 gr.b dn400 erw steel pipe industrial pipeline in China. Please feel free to buy cheap api 5l psl1 gr.b dn400 erw steel pipe industrial pipeline from our factory. All customized products are with high quality and low price.
Product Overview
Huayang API 5L PSL1 Grade B DN400 ERW steel pipe combines high strength, dimensional precision, and reliable pressure performance for industrial pipeline systems.
| Parameter | Specification |
|---|---|
| Outside Diameter | 406.4 mm (DN400) |
| Material Grade | API 5L PSL1 Grade B |
| Manufacturing Process | High Frequency ERW |
| Wall Thickness | 6.0–22.0 mm |
| Main Application | Industrial Pipeline |
The pipe delivers stable mechanical performance and excellent weld integrity for continuous industrial operation.
Material Performance and Application
Huayang DN400 API 5L PSL1 Grade B ERW steel pipes are manufactured from premium hot-rolled pipeline steel coils using advanced high-frequency electric resistance welding lines, ensuring uniform weld fusion, high dimensional accuracy, and excellent pressure-bearing capability. API 5L PSL1 Grade B features a minimum yield strength of 245 MPa and a minimum tensile strength of 415 MPa, providing excellent weldability, toughness, and resistance to installation and operating stresses. The DN400 size is widely used in petrochemical plants, power stations, industrial water systems, compressed air networks, and process fluid transportation. Every pipe undergoes hydrostatic pressure testing, ultrasonic weld inspection, eddy current testing, tensile testing, flattening testing, and full chemical composition verification to ensure compliance with API 5L specifications. Huayang also offers FBE, 2PE, 3PE, and internal epoxy coating systems to improve corrosion resistance, minimize maintenance requirements, and extend service life in demanding industrial environments.
Our Certificate
Bundling and loading onto vehicles
Pipe Detaild Packages
| Specification | Pcs per Bundle | Bundling Layer Pattern | CBM per Bundle | |
| OD (mm) | Wall Thickness (mm) | |||
| 48.3 | 3.68 | 91 | 6,7,8,9,10,11,10,9,8,7,6 | 1.69 |
| 5.08 | 61 | 5,6,7,8,9,8,7,6,5 | 1.13 | |
| 60.3 | 3.91 | 61 | 5,6,7,8,9,8,7,6,5 | 1.77 |
| 5.54 | 37 | 4,5,6,7,6,5,4 | 1.07 | |
| 73 | 5.16 | 37 | 4,5,6,7,6,5,4 | 1.57 |
| 7.01 | 24 | 4,5,6,5,4 | 0.96 | |
| 88.9 | 5.49 | 24 | 4,5,6,5,4 | 1.42 |
| 7.62 | 19 | 3,4,5,4,3 | 1.19 | |
| 114.3 | 6.02 | 19 | 3,4,5,4,3 | 1.96 |
| 8.56 | 10 | 3,4,3 | 0.94 | |
| 141.3 | 6.55 | 10 | 3,4,3 | 1.44 |
| 9.53 | 7 | 2,3,2 | 1.08 | |
| 168.3 | 7.11 | 10 | 3,4,3 | 2.04 |
| 10.97 | 7 | 2,3,2 | 1.53 | |
| 219.1 | 8.18 | 7 | 2,3,2 | 2.59 |
| 12.7 | 5 | 2,3 | 1.73 | |
| 273 | 9.27 | 5 | 2,3 | 2.68 |
| 15.09 | 3 | 1,2 | 1.79 | |
| 323.8 | 10.31 | 3 | 1,2 | 2.52 |
| 17.48 | 2 | 1,1 | 1.26 | |
Pipe Protection
Pipe-end protection is advisable in case the pipe-ends are bevelled at the pipe manufacturer. In the case of overseas transport, there is an especially increased risk of damaged pipe-ends. This is caused by extra handling procedures in ports and shifting of the pipes onboard vessels.
In addition to end caps or protective rings, external wrapping with protective cloth can be applied along the pipe body. This wrapping helps to safeguard the coating surface from scratches, moisture, and contamination during long-distance transportation or prolonged outdoor storage. Especially for coated or painted pipes, the additional protective cloth layer significantly reduces the risk of mechanical damage, UV exposure, and corrosion initiation, ensuring the pipes arrive at the destination in optimal condition.
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