ASTM A268 tube, tubing, pipe | ASME SA268 Tubes
ASTM A268 Tubing, ASME SA268 TP410, ASTM A268 TP 439. ASTM A268 specification covers standard specification for a number of grades of nominal-wall-thickness, welded ferritic and martensitic stainless steel tubing for general corrosion-resisting and high-temperature service. ASTM A268 tubes shall be made by seamless and welded process …