Goodwin Steel Castings manufacture large alloy steel castings in a wide range of specifications in weights from 250 to 15,000 kg and assemblies up to 100,000kg.

Goodwin supply proof machined castings, finish machined castings and fabricated assemblies in alloy steel.


19,300kg, copper bearing steel, Nuclear CIV valves for Toshiba/Westinghouse AP1000 power plant.

A 4,500kg 12-bolt, 1,800mm cable band assembly undergoing dimensional inspection prior to packing.

26,000kg finished assembly of a Cable Saddle for the Hardanger Suspension Bridge, Norway. The CrNi 13/4 castings are welded to the carbon steel fabrication. The welded joint incorporates a welded nickel alloy 625 intermediate layer.



Alloy steel castings exhibit mechanical properties superior to plain carbon steels as the result of additions of alloying elements such as nickel, chromium and molybdenum.

Properties which can be improved include: Higher tensile and yield strength; Low temperature impact properties; Oxidation resistance; Elevated temperature tensile properties.