Seamless Steel Pipe 1.OD:4" to 24" 2.W.T.:SCH20,30,40,60,STD ... steel , slloy steel cap : ASTM(ANSI),API,BS,DIN,and JIS standards. tee : DN15---DN1200 according to the ANSI ... standards cross : carbon steel such as Rst 37.2/20#/20Mn/A105, stainless steel suchu as 304/304L ... smelting, foodstuff, papermaking, chemical equipment, heat exchanger and other fieledsseamless pipe Stainless Steel Pipe Fitting