... serves as wall of well.J55,K55,N80,L80,P110 oil casing pipeTubing is used in extracting petroleum & natural gas. ... For the purpose of transportation of gas,water,oill in oil&gas industry.API SPEC 5CT.Tubing is used in ... manufacture wall panel,economizer,reheater,superheater and steam pipeline of boilers. Chemical Composition STANDARDGRADE CHEMICAL COMPOSITIONCSiMnPSCrMoCuNiV ASME SA106SA106B0.170.25≥0 ...