The SAE Standard covers normalized electric resistance welded flash controlled single-wall, SAE 1021 carbon steel pressure tubing intended for use as pressure lines and in other applications requiring tubing of a quality suitable for bending, double flaring, beading, and brazing. Material produced to this specification is not intended to be used for single flare applications due to the potential leak path that would be caused by the ID weld bead.
The grade of material produced to this specification is higher in carbon content and manganese content than the grade of material specified in SAE J356. The material produced to this specification is intended to service higher pressure applications than like sizes of SAE J356. Due to the higher carbon and manganese content, however, the forming characteristics of the finished tube is diminished somewhat when compared to SAE J356. Special attention to the overall forming requirements of the finished assembly
This five year review of this standard resulted in changes identified by the bar on the left side of the page and are described as follows: a. Added SAE and other international standards to the "Related Publications" section because these documents are related to J2435 tubing. b. In Section 8. Performance Requirements, removed un-needed J1677 paragraph numbering to eliminate unnecessary confusion. c. In Section 8. Performance Requirements, added elongation test.