... hot rolled seamless carbon steel pipe: 1.in carbon steel 2.size from 48-219* 4.5-40mm 3.competitive ... ,TP304L,TP316L,A335 P5,ST37,ST35.8,ST52,1.0309,OD1/4"-40",13mm-1000mmWTSCH5,SCH10,SCH20, ... ect.OD TolleranceD<50mm,+-0.5mm ,D>50MM,+-1%WT TolleranceWT +-12.5%ChemicalC:0.17-0.24%, ... %,Cr:<0.25%Tensile strength390MPAYield PointWT<16MM 245MPA,WT 16-30MM 235MPAElong-Ation20other testHY,ET according to ...