• Model NO.：KM-81
• Wt：2.5~80mm
• Od：10~540mm
• Package：in Bundles or as Required
• Price Term：Fob,CIF,CNF
• Brand：Km
• Secondary or Not：Not Secondary
• Delivery Time：15-30days After Down Payment
• Alloy or Not：Alloy
• Payment：T,T L,C
• Transport Package：Bundles
• Specification：1,4′′-48′′
• Trademark：KINGMETAL
• Origin：China (Mainland)
• Production Capacity：20000ton,Month

Chemical Composition(%) Steel GradeCSiMnPSSt37≤0.17--≤0.035≤0.035St44≤0.21--≤0.035≤0.035St52.0≤0.22≤0.55≤1.60≤0.035≤0.035

 Mechanical Property:

 Mechanical PropertiesSteel GradeTensile strength(Mpa)Yield point(Mpa)Elongation(%)LElongation(%)TSt37350-480≥235≥25≥23St44420-550≥275≥21≥19St52.0500-650≥355≥21≥19

DIN 1629 Steel Pipe Equivalent steel grade:

DIN 1629ENBS NFA 49.210/49.112ASTM 53Grade St 37EN 10216.1Grade P235 T1Grade TU 37 B TU E 220 AGrade BGrade St 44EN 10216.1Grade P275T1Grade TU 42 B TU E 235 AGrade BGrade St 52-0EN 10216-3Grade P355NNFA Grade P355NASME SA 381 Grade Y 52