ASTM A53/A53M-20 pdf free download.The title is Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless.
5. Chemical Composition
5.1 The steel shall conform to the requirements as to chemical composition given in Table I and the chemical analysis shall be in accordance with Test Methods, Practices, and Terminology A751.
6. Product Analysis
6.1 The purchaser is permitted to perform an analysis of two pipes from each lot of 500 lengths, or fraction thereof. Samples for chemical analysis, except for spectrographic analysis, shall be taken in accordance with Practice E1806. The chemical composition thus determined shall conform to the requirements gIven in Table 1.
7. Mechanical Properties
7. I Tension est
7.1.I For tension tests other than transverse weld tension tests, the yield strength corresponding to a permanent offset of 0.2% o of the gage length or to an extension of 0.5 %o of the gage length under load. the tensile strength, and the elongation in 2 n or 50 mm shall be determined. and the tension test results shall conform to the applicable tensile property requirements gIven in Table 2.
7.1.2 For transverse weld tension tests. the tensile strength shall be determined. and the tension test results shall conform to the applicable tensile strength requirement given in Table 2.
7.1.3 Electric-resistance-welded pipe NPS 8 [DN 200] or larger shall be tested using two transverse test specimens, one taken across the weld and one taken opposite the weld.