• ASTM A213 Alloy Steel Tube
    ASTM A213 / A213M-19aSeamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger TubesThe tubing sizes and thicknesses usually furnished to this specification are1/8in. [3.2 mm] in inside diameter to 5 in. [127 mm] in outside diameter and 0.015 to 0.500 in.
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