ASTM A500/A500M-18 pdf free.Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes.
ASTM A500/A500M covers cold-formed welded and seamless carbon steel round, square, rectangular, or special shape structural tubing for welded, riveted, or bolted construction of bridges and buildings, and for general structural purposes.
5. Process
5.I The steel shall be made by one or more of the following
rocesses: basic-oxygen or electric-furnace.
5.2 When steels of different grades are sequentially strand cast, the steel producer shall identify the resultant transition material and remove it using an established procedure that positively separates the grades.
6. Manufacture
6.1 The tubing shall be made by a seamless or welding process.
6.2 Welded tubing shall be made from flat-rolled steel by the electric-resistance-welding process. The longitudinal butt joint of welded tubing shall be welded across its thickness in such a manner that the structural design strength of the tubing section is assured
6.3 The weld shall not be located within the radius of the corners of any shaped tube unless specified by the purchaser.
NOTE 2-Welded tubing is normally furnished without removal of the side flash.
26.4 Except as required by 6.5, it shall be permissible for the ibing to be stress relieved or annealed.
8. Product Analysis
8.1 The tubing shall be capable of conforming to the requirements specified in Table I for product analysis.
8.2 If product analyses are made, they shall be made using
test specimens taken from two lengths of tubing from each lot of 500 lengths, or fraction thereof, or two pieces of flat-rolled stock from each lot of a corresponding quantity of flat-rolled stock. Methods and practices relating to chemical analysis shall ee in accordance with Test Methods. Practices. and Terminol ogy A75l Such product analyses shall conform to the require ments specified in Table I for product analysis
8.3 If both product analyses representing a lot fail to conform to the specified requirements, the lot shall be rejected.
8.4 If only one product analysis representing a lot fails to conform to the specified requirements, product analyses shall be made using two additional test specimens taken from the lot Both additional product analyses shall conform to the specified requirements or the lot shall be rejected.
9. Tensile Requirements
9.I The material, as represented by the test specimen, shall conform to the requirements as to tensile properties prescribed in Table 2.ASTM A500/A500M-18 pdf free download.