STANDARD:GB5310 Seamless Steel Pipe For High Pressure BoilerGB6479High Pressure Seamless Pipe For Chemical Fertilizer EquipmentGB9948Seamless steel tube for petroleum cracking TubeASTM A213 Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exnger TubesASTM A335 Seamless Ferritic Alloy-Steel Pipe for High-Temperature ServiceJIS G3458 Alloy Steel Pipes (STPA 12/ 20/ 22/ 23/ 24/ 25/ 26)JIS G3462 Alloy Steel for Boiler and Heat Exchanger Tubes (STBA12/ 13/ 20/ 22)JIS G3467 Steel Tubes for Fired Heater (STF 410/STFA 12/ 22/ 23/ 24/ 25/ 26)DIN17175-79Electrical Resistance Or Induction Welded Steel Tubes for Elevated Temperature

 

GRADE:ASME/ ASTM A335 P5/ A213 T5 / Cr5Mo (STFA25 STPA25 STBA25)ASME/ ASTM A335 P12/ A213 T12 / 15CrMo (STFA22 STPA22 STBA22 T12 P12)ASME/ ASTM A335 P11/ A213 T11 / 1.25Cr0.5Mo (STFA23 STPA23 STBA23 T11 P11)ASME/ ASTM A335 P9/ A213 T9 / Cr9Mo (STFA26 STPA26 STBA26 T9 P9)12Cr1MoVASME/ ASTM A335 P22/ A213 T22 / 12Cr2Mo (10CrMo910 T22 P22)ASME/ ASTM A335 P91/ A213 T91 / 10Cr9Mo1VNb T91 (P91)12Cr2MoWVTiB (R102)WB36 (15NICUMOB5)