... Service as Boiler tube ASTM A335 / ASME SA335 / P1 Seamless Ferritic Alloy Steel Pipe for High Temperature Service as ... Boiler tube1)STD.:ASTM A335 2)Steel Grade.:P1,P2,P5,P9,P11,P12,P22,P91,P92 3 ... service 4).Outside diameter:14mm~720mm 5).Wall Thickness:2mm~100mm 6).Length:6m-12m,also can be manufactured ... T2,T5,T9,T11,T12,T22,T91,T92ASTM A335: P1,P2,P5,P9,P11,P12,P21,P22,P91,P92DIN17173: ...