... of malleable iron pipe fittings: elbows, tees, sockets, bends, nipples, unions, crosses, flanges, plugs, backnuts, crosses over, round caps etc. Cast Iron Pipe Fitting ... size: 1/8'-6' Product ItemMalleable iron pipe fittings: elbows, tees, sockets, bends, nipples, unions, crosses, flanges, plugs, backnuts, crosses over, round ... :1.2~1.7 Mn:0.3~0.55P:0.12 S:0. Standards:1.DIN (Germany) standard, DIN ...