Schedule 80 black steel pipe specifications

Black steel pipe, also known as black iron or black malleable iron pipe, features a dark, matte finish created through a blackening process that enhances both its corrosion resistance and visual appeal. Among its various forms, the Schedule 80 seamless black steel pipe stands out for its superior strength, thick walls, and ability to withstand high pressure and temperature. Unlike welded pipes, its seamless structure eliminates weak points, making it ideal for demanding industrial applications such as oil and gas transport, construction, water systems, and mechanical infrastructure. Typically made from ASTM A106, A53, or API 5L carbon steel, this pipe type also benefits from a natural black oxide coating that provides an added layer of protection.

Why Choose Seamless Black Steel Pipe Over Welded Pipes?

What is the thickness of Schedule 80 black steel pipe?

The wall thickness of Schedule 80 black steel pipe depends on its nominal pipe size (NPS), but generally falls between approximately 0.179 inches (4.55 mm) and 0.406 inches (10.31 mm). This makes it significantly thicker than Schedule 40 pipes of the same size, which usually range from about 0.068 inches (1.73 mm) to 0.344 inches (8.74 mm). These differences in wall thickness directly affect the pressure-handling capability and weight of the pipe. It's worth noting that exact dimensions may vary slightly depending on the manufacturing standards (such as ASTM or API) and regional specifications, so it's essential to consult official dimensional charts when selecting the right pipe for your application.

Schedule 80 black steel pipe specifications

Looking for a Reliable Schedule 80 Black Steel Pipe Manufacturer?

BAOWI Steel is a leading manufacturer of Schedule 80 black steel pipes, known for delivering high-quality, durable, and precision-engineered pipes that meet stringent ASTM and API standards. Our Schedule 80 pipes feature thicker walls for superior pressure resistance, seamless construction for enhanced strength, and a black oxide coating that provides excellent corrosion protection. Serving industries such as oil and gas, construction, and mechanical systems, BAOWI Steel offers customizable sizes, fast delivery, and competitive pricing to ensure your project’s success. Choose BAOWI Steel for reliable Schedule 80 black steel pipes built to perform under the toughest conditions.