This document summarizes key specifications from various ASTM standards for stainless steel tubes and pipes. It provides allowable tolerances for outside diameter, wall thickness, length, and testing requirements for different material sizes under standards including ASTM A-270, A-249, A-312, A-269, A-213, A-268, and A-358. The table lists specification details like diameter ranges, diameter and thickness variation limits, length tolerances, and mandated test procedures for each standard based on material size.