Seamless Carbon Steel Tubes

Seamless Carbon Steel Tubes is produced in accordance with the relevant standards of the United States, with carbon as the main alloying element of seamless steel pipe. During production, high-quality carbon steel is usually selected as the raw material, the billet is heated and perforated by the perforator, and then further processed by hot rolling, cold rolling or cold drawing processes, and finally by heat treatment, surface treatment and strict testing processes to ensure the quality and performance of the steel pipe.

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Seamless Carbon Steel Tubes enforce standards
ASTM A53/A53M: Standard for welded and seamless nominal steel pipes without coating or hot-dip galvanized. Suitable for pressure piping systems, piping and general purpose pipes with temperatures below 350°C.
ASTM A106/A106M: Standard for seamless Carbon steel nominal tubes for high temperature applications. Suitable for high temperature environment, widely used in petroleum, chemical, boiler and other industries.
ASTM A210/ASME SA210: Seamless medium carbon steel tubes with minimum wall thickness for boiler tubes and boiler flue tubes, including safety ends, vault and support tubes, and superheater tubes.
ASTM A519: Standard for seamless carbon steel tubes and alloy steel tubes for machinery, automobiles and other parts.
material
American standard seamless carbon steel pipe common materials are A53 Grade A, A53 Grade B, A106 Grade A, A106 Grade B, A106 Grade C and so on.
Chemical property
A53 Grade A: Carbon content ≤0.25, manganese content ≤0.95, phosphorus content ≤0.05, sulfur content ≤0.045, copper, nickel, chromium content ≤0.4, molybdenum content ≤0.15, vanadium content ≤0.08.
A53 Grade B: Carbon content ≤0.3, manganese content ≤1.2, phosphorus content ≤0.05, sulfur content ≤0.045, copper, nickel, chromium content ≤0.4, molybdenum content ≤0.15, vanadium content ≤0.08.
A106 Grade A: Carbon content ≤0.25, Silicon content ≥0.1, manganese content 0.27-0.93, phosphorus content ≤0.035, sulfur content ≤0.035, copper, nickel, chromium content ≤0.4, molybdenum content ≤0.15, vanadium content ≤0.08.
A106 Grade B: Carbon content ≤0.3, Silicon content ≥0.1, Manganese content 0.29-1.06, Phosphorus content ≤0.035, sulfur content ≤0.035, Chromium content ≤0.4, nickel content ≤0.4, copper content ≤0.4, molybdenum content ≤0.15, Vanadium content ≤0.08.
A106 Grade C: Carbon content ≤0.35, Silicon content ≥0.1, manganese content 0.29-1.06, phosphorus content ≤0.035, sulfur content ≤0.035, copper, nickel, chromium content ≤0.4, molybdenum content ≤0.15, vanadium content ≤0.08.