1)astm a53 sch 40 steel pipe 2)OD:1/2"-48" 3)WT:1- ... ,LSAW,Seamless 5)Standard:ASTM,ANSI Type astm a53 sch 40 steel pipe SizeSeamless Pipe: 1/2”~48”, DN15~DN1200, OD21 ... as: long/short radius elbows(EL/ES),straight / reducing tee(TC/TR) ,SO ,WN,PL,BL,SW,TH flanges,pipe end ... website , your inquiries will be reply promptly! astm a53 sch 40 steel pipe