M&F Equal Elbow 90 Deg,NPT,Black Malleable Iron 1.Banded,Beaded,Plain 2.1/8-6 inch 3.Connection:NPT ... thread 4.Heavy/Standard/ M&F Equal Elbow ... Black Malleable Iron,WOG (PSI) 300 At 150 Deg F, Saturated Steam Pressure 150, Standards Class 150. Technical ... Pressure:16kg/cm2Chemical PropertiesC:2.4~2.9 %Si:1.2~1.7 %Mn:0.3~0.55 %P:0 ...