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Black Steel Pipe

Black Steel Pipe

Black steel pipes are a type of piping material characterized by their dark-colored iron oxide coating, which forms a protective layer against corrosion. These pipes are commonly used in applications that do not require zinc coating, such as transporting gas and water, as well as in fire sprinkler systems and other industrial applications. Known for their strength and durability, black steel pipes are an essential component in construction and infrastructure projects.

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Alloy ASTM Characteristics
A53 ASTM A53 ASME SA53

Construction and Structural Support

Gas and Water Transportation

Mechanical and Automotive Applications

CHEMICAL COMPOSITION

  • The chemical composition of the material consists of a maximum of 0.3% Carbon (C), a maximum of 1.20% Manganese (Mn), a maximum of 0.50% Phosphorus (P), and a maximum of 0.045% Sulfur (S).

MECHANICAL INFORMATION

  • This category of hot rolled, Grade B pipes possesses a maximum chemical composition of carbon at 0.3%, manganese at 1.20%, phosphorus at 0.50%, and sulfur at 0.045%. The mechanical properties include a tensile strength of 60,000 psi and a yield strength of 35,000 psi. These pipes are available in various nominal sizes and schedules, with outer diameters ranging from 1/4" to 3-1/2" and corresponding wall thicknesses and IDs. Pipe weights per foot vary according to size and schedule, ensuring suitability for diverse applications. For detailed material test reports, customers are advised to contact the Customer Service Department.

AVAILABLE SIZES

  • The available sizes for the pipes start at 1/4" x SCH40 with an outside diameter of 0.54", a wall thickness of 0.088", an inside diameter of 0.364", a length of 252.00", and a weight of 0.420 lb/ft. Other available sizes include 3/8" x SCH40 with a 0.675" OD, 0.091" wall thickness, 0.493" ID, 252.00" length, and 0.568 lb/ft weight; 1/2" x SCH40 and SCH80 with 0.84" OD—SCH40 has 0.109" wall thickness, 0.622" ID, and 0.850 lb/ft weight, while SCH80 has 0.147" wall thickness, 0.546" ID, and 1.090 lb/ft weight. The sizes available continue with 3/4" SCH40 having a 1.05" OD and SCH80 with the same OD, but differing in wall thickness, ID, and weights—SCH40 at 0.113" wall thickness, 0.824" ID, and 1.128 lb/ft weight, SCH80 at 0.154" wall thickness, 0.742" ID, and 1.470 lb/ft weight. The list goes on to include 1" SCH40 and SCH80, 1-1/4" SCH40 and SCH80, 1-1/2" SCH40 and SCH80, with their respective specifications. Larger sizes extend up to 3-1/2" SCH40 with 4" OD, 0.226" wall thickness, 3.548" ID, 252.00" in length, and 9.109 lb/ft. Each size specification includes details of outside diameter, wall thickness, inside diameter, total length, and the weight per foot in pounds, meant to suit varying requirements for different applications.