Seamless steel tube ASTM A192/A192M-02 Application For seamless crabon steel boiler and superheater tubes for high-pressure service. Details Size O.D.: 6.0-820.0mm W.T.: 1.0-80mm Length: Max.12000mm Grade and Chemical Composition Grade C Mn Pd Sd Sid Steel 10 0.06-0.18 0.27-0.63 0.035 0.035 0.25 Mechanical Properties Grade Tensile Point,Mpae Yield Point,Mpae Elongation A%e Steel 10 325 180 35