... 80mm 4) heater 1 Product name ASTM A335 P22 alloy pipe heat exchanger tube2 Production StandardASTM SA213, SA335, A369, A209 ... STPA12, STBA13, STBA20, STBA22, STBA23, STBA24, STBA25, STBA264 Outside diameter: 14mm~114.3mm 5 Wall Thickness:2mm~25mm6 Length: 6m ... A213 Seamless Alloy Steel Boiler Tube Delivery Condition : As different requirements,It including pickling,etc. AS per StandardPacking:1. ...