ASTM A672 C55 Carbon Steel Pipe

The chemical composition of C55 carbon steel pipe mainly includes carbon (C), silicon (Si), manganese (Mn) and phosphorus (P). Among them, the carbon content is usually between 0.52-0.60%, the silicon content is between 0.15-0.35%, the manganese content is between 0.60-0.90%, and the phosphorus content does not exceed 0.035%.
C55 welded pipe has high strength and hardness and is suitable for manufacturing parts and mechanical components with high strength requirements. Its tensile strength is usually between 650-800 MPa, yield strength is about 400-500 MPa, and elongation is about 15-20%. In addition, C55 steel pipe also shows better performance under bending and impact loads.

ASTM A672 C55 Pipe Chemical Composition

ASTM A672 C55 carbon Pipe Mechanical Properties

Straight seam resistance welded pipe

Since ASTM A672 C55 C55 carbon steel pipe contains the right amount of alloying elements, it has good heat treatment capabilities. ASTM A672 C55 EFW pipe is often quenched and tempered to improve its hardness and strength. During the quenching process, the steel is rapidly cooled to form a hard and brittle martensite structure; while tempering is a heating treatment performed after quenching to reduce brittleness and increase toughness.
C55 straight seam welded pipe is widely used in various machinery manufacturing fields. For example, it is often used to make high-strength parts such as bearing parts, gears, and shafts.

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