... , the dome and the support tube and superheater tubes.ASTM A 210 Gr. C steel pipes Mechanical Properties: GradeC(Max) ... .27Max.0.930.100.0350.035C0.350.29~1.060.100.0350.035ASTM A 210 Gr. C steel pipes Chemical composition: GradeTensile ... pipes Surface treatment: Oil-dip, Varnish, Passivation, Phosphating, Shot BlastingASTM A 210 Gr. C steel pipesApplication: For high, middle, low pressure ...