SAE j526 Standard covers welded single-wall low-carbon steel tubing intended for general automotive, refrigeration, hydraulic, and other similar applications requiring tubing of a quality suitable for bending, flaring, bending, forming, and brazing.
SAE J526-2000 history
2022SAE J526-2022 Welded Low-Carbon Steel Tubing Suitable for Bending, Flaring, Beading, Forming, and Brazing