... of material 3.professional for years Carbon Steel seamless PipeStandardANSI,ASTM ,API.DIN,GB.JISMaterialA106 Gr A,B,A53 Gr B ... ,ASTM A179,A106GrB,ASTM A53GrB,St42,St45,A179,A135,A315B,A214CA333 Gr 6 ... .25%,Cr:<0.25%Tensile strength390MPAYield PointWT<16MM 245MPA,WT 16-30MM 235MPAElong-Ation20other testHY,ET according to requestLength2-12m Random ...