Black Coated Steel Pipe

Black Coated Steel Pipe

Cangzhou Huishang Pipe Fittings Manufacturing Co., Ltd. offers high quality black coated steel pipes designed for long service life in demanding environments. Our black coated steel pipes combine the strength of spiral welded steel with an anti-corrosion surface layer, making them an ideal choice for water supply systems, drainage networks and industrial piping projects.

Product Introduction

A black coated steel pipe is a carbon steel pipe with a black protective coating applied to the outer surface. The coating protects the steel from moisture, soil chemicals and atmospheric corrosion, significantly extending the service life of the pipeline. Our pipes are produced using the spiral submerged arc welding process, which ensures a strong and uniform weld seam across the entire pipe length.

Production and Quality Control

Each black coated steel pipe is manufactured from high quality carbon steel strips, formed and welded on automated production lines. After welding, the pipes are subjected to strict quality inspections including dimensional checks, hydrostatic testing and coating adhesion testing. All products are manufactured in accordance with ISO 9001 quality management standards.

Specifications

We supply black coated steel pipes with outer diameters from 219 mm to 3620 mm and wall thicknesses from 5 mm to 32 mm. Standard material grades include Q235B and Q345B carbon steel. Pipes can be manufactured according to GB/T 9711, API 5L and ASTM A252 standards, with custom lengths and end preparations available on request.

Applications

Black coated steel pipes are widely used in urban water supply and drainage systems, agricultural irrigation, mining, and industrial cooling water pipelines. The anti-corrosion coating makes them particularly suitable for buried installations where protection against soil and groundwater corrosion is essential.

Why Choose Us

With more than 30 years of manufacturing experience and exports to over 50 countries, Cangzhou Huishang is a trusted steel pipe supplier worldwide. We offer competitive factory prices, reliable quality and professional customer service. Contact us today for a quotation or technical consultation.