Hebei Huayang Steel Pipe Co., Ltd is one of the leading manufacturers and suppliers of 377mm erw steel pipe api 5l oil and gas transmission in China. Please feel free to buy cheap 377mm erw steel pipe api 5l oil and gas transmission from our factory. All customized products are with high quality and low price.
Product Overview
Huayang 377 mm ERW steel pipe is manufactured for oil and gas transmission systems requiring high strength, dimensional accuracy, and reliable pressure performance.
| Parameter | Specification |
|---|---|
| Outside Diameter | 377 mm (DN350) |
| Material Grade | API 5L Grade B / X42 / X52 |
| Manufacturing Process | High Frequency ERW |
| Wall Thickness | 6.0–25.0 mm |
| Main Application | Oil and Gas Transmission Pipe |
The pipe provides excellent weld integrity and mechanical reliability for long-distance energy pipeline projects.
Material Performance and Application
Huayang 377 mm API 5L ERW steel pipes are produced from premium pipeline steel coils through advanced high-frequency electric resistance welding technology, ensuring uniform weld strength, accurate dimensions, and stable service performance. API 5L Grade B, X42, and X52 materials are widely used in oil and gas transmission systems, with minimum yield strengths of 245 MPa, 290 MPa, and 359 MPa, respectively, meeting different pipeline design requirements. The 377 mm diameter pipe is suitable for crude oil pipelines, natural gas transportation networks, oilfield gathering systems, and industrial energy projects. Huayang applies hydrostatic pressure testing, ultrasonic weld inspection, eddy current testing, tensile testing, and chemical composition analysis to ensure compliance with API 5L specifications. FBE, 2PE, and 3PE coating systems are available to enhance corrosion resistance and improve pipeline durability in underground and outdoor operating 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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