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ASTM A192 /A192MThe tubing sizes and thicknesses usually furnished to this specification are ½ in. to 7 in.
[12.7 to 177.8 mm] outside diameter and 0.085 to 1.000 in.
[2.2 to 25.4 mm], inclusive, in minimum wall thickness.
Tubing having other dimensions may be furnished,
provided such tubes comply with all other requirements of this specification
A192/A192M covers standard specifications for minimum-wall-thickness, seamless carbon steel boiler and superheater tubes for high-pressure service. The steel shall conform to the required chemical composition for carbon, manganese, phosphorus, sulfur, and silicon. The tubes shall have a hardness number not exceeding a specific value. The following mechanical tests shall be conducted, namely: flattening test; flaring test; hardness test; and hydrostatic test.
A192 pipe, ASTM seamless pipe, ASTM A192 Pipe