Hebei Huayang Steel Pipe Co., Ltd is one of the leading manufacturers and suppliers of erw black steel pipe dn406 api 5l x56 for petroleum transportation systems in China. Please feel free to buy cheap erw black steel pipe dn406 api 5l x56 for petroleum transportation systems from our factory. All customized products are with high quality and low price.
Product Overview
Huayang ERW black steel pipe DN406 API 5L X56, designed for petroleum transportation and energy pipeline infrastructure applications.
| Parameter | Specification |
|---|---|
| Outer Diameter | 406 mm |
| Material Grade | API 5L X56 |
| Manufacturing | ERW High-Frequency Welding |
| Wall Thickness | 7–18 mm |
| Application | Petroleum transportation systems |
This ERW black steel pipe offers high strength, reliable weld performance, and stable fluid transmission capability for oil pipeline projects.
Material Performance and Application
Huayang DN406 API 5L X56 ERW black steel pipes are manufactured using advanced high-frequency resistance welding technology with strict control of raw material quality and welding process parameters. API 5L X56 grade carbon steel provides a minimum yield strength of 386 MPa, combining excellent strength, toughness, and weldability for petroleum transportation applications. The material is widely used in oilfield surface pipelines, crude oil gathering systems, and industrial energy networks. The black steel surface allows flexible further processing, including coating and anti-corrosion treatment according to project requirements. Each pipe undergoes ultrasonic inspection, hydrostatic testing, weld quality evaluation, and dimensional verification to ensure dependable performance and compliance with international pipeline standards.
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