ASTM A213, ASTM A312, Heat exchanger tubes, Boiler tubes, Seamless Stainless Steel Tubes, Duplex Stainless Steel Tubes (310S, 316Ti, 347H, 904L, 309S, 31254, 253MA, UNS S31803, UNS S32205, UNS S32750, ect.)Features:1) INCH: 1/8" to 16" SCH: 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S, acc. To ANSI B36.19/36.102) Standards: ASTM A213, ASTM A269, EN10216-5 for austentic stainless steel seamless tubes, ASTM A789 for duplex stainless steel seamless tubes, 3) Applications: boiler, heat-exchanger and Other fields with high pressure.4) Certificates: ISO9001, PED, AD2000, BV, GOST, ISO14001, ISO45001
5) Inspection: 100% hydro and eddy current test.