... Chemical composition7.SizeNamepipe line1.Applicantcarbon structural steel seamless steel pipeGradeL245,L360,A53,J55,N80 ,X42 ... ,ASTM SA179,SA192,BS30595. ApplicantHigh pressure seamless steel tube for chemical Fertilizer EguipmentsGrade:10 ... industry.2), API SPEC 5CT Tubing is used in extracting petroleum & natural gas. casing ... &petroleum.4), ASTM A53 It is used for conveying water,petrolem,gas and other ...