... air and railway6.Chemical composition7.SizeNamepipe line1.Applicantcarbon structural steel seamless steel pipeGradeL245,L360,A53,J55,N80 ,X42,X46,X52, ... A179,ASTM A192,ASTM SA179,SA192,BS30595. ApplicantHigh pressure seamless steel tube for chemical Fertilizer EguipmentsGrade:10,20G,Q345, ... water,oill in oil&gas industry.2), API SPEC 5CT Tubing is used in extracting petroleum & natural gas. casing pipe ...