Duplex & Super Duplex Castings
High-Strength, Corrosion-Resistant Castings
Wall Colmonoy has extensive experience casting and processing duplex and super duplex stainless steel alloys for applications where strength and corrosion resistance must work in combination. These alloys offer a dual-phase microstructure that delivers higher mechanical strength than standard austenitic stainless steels, along with excellent resistance to pitting, crevice corrosion, and stress corrosion cracking.
Wall Colmonoy applies advanced investment casting and vacuum precision investment casting (VPIC) techniques to ensure tight control of chemistry and structural integrity. Our metallurgical expertise is critical in achieving the correct ferrite-to-austenite ratio, which directly influences performance in demanding environments.
Wall Colmonoy Duplex & Super Duplex Advantages
Duplex and super duplex cast alloys are engineered for high-strength and high-corrosion environments. Wall Colmonoy enhances these inherent properties through controlled casting and integrated finishing processes.
Duplex & Super Duplex Application Examples
Duplex & super duplex alloys are developed for demanding environments where both high strength and exceptional corrosion resistance are essential. Some examples include:
- Offshore and subsea components
- Nuclear reactor components
- Pump and valve bodies for aggressive media
- Desalination plant hardware
- Oil and gas flow control components
- Marine structural components
Our Facility
Duplex and super duplex components are manufactured at Wall Colmonoy’s facility in Pontardawe, Swansea, UK, enabling precise metallurgical control and consistent quality for demanding corrosion-resistant alloy applications.
