Temperature Seamless Steel Tubes Chemical Compositionchemical Composition %grade13467891011c,max0.30.190.120.30.190.130.20.20.1mn0.40-1.060.31-0.640.5-1.050.29-1.060.9,max0.9,max0.4-1.061.15-1.50.6,maxp,max0.0250.0250.0250.0250.0250.0250.0250.0350.025s,max0.0250.0250.0250.0250.0250.0250.0250.0250.025si–0.18-0.370.08-0.370.1,min0.13-0.320.13-0.32…0.1-0.350.35,maxni–3.18-3.820.47-0.98–2.03-2.578.4-9.61.6-2.240.25,max35-37cr––0.44-1.01––––0.15,max0.5,maxcu––0.4-0.75–––0.75-1.250.15,max–al––0.04-0.3––––0.06,max–v,max–––––––0.12–nb,max–––––––0.05–mo,max–––––––0.050.5,maxco––––––––0.5,maxmn0.40-1.060.31-0.640.5-1.050.29-1.060.9,max0.9,max0.4-1.061.15-1.50.6,maxastm ...