... 3) Manufacturing standards: ASTM/ASME Features:1) O.D seamless pipes (nominal to 48")2) Wall thickness up to 3.15 ... .High tem stainless steel tubeTP304H,TP321H,TP316H,TP347HIncoloy800h Inconel 60012. API 5L for use in conveying gas , water and oil in ... ,X42 ,X46 ,X52 ,X56 ,X60 ,X65 ,X70 and X80 Seamless Pipes and Tubes (Big O.D. and Heavy Wall Thickness)