Marine Casting Parts
Neocast Alloys manufactures premium marine casting parts designed to withstand the harshest oceanic environments. Supplying Duplex and Super Duplex investment castings to the global shipbuilding and offshore industries.
Precision Marine Castings
As a specialized OEM casting parts manufacturer, we produce critical components for surface vessels, submarines, and deep-water offshore drilling platforms.
Combatting Marine Corrosion
Seawater is notoriously corrosive. We cast in advanced custom alloy casting grades specifically formulated for long-term ocean submersion.
Duplex Steel
Super Duplex
Nickel Alloys
Stainless Steel
Frequently Asked Questions
Q.What marine casting parts do you manufacture?
We manufacture a wide range of marine casting parts including seawater pump and valve components, propeller hubs, deck hardware, winch components, and structural brackets for offshore oil rigs.
Q.What alloys are used for marine castings to prevent rust?
To combat the highly corrosive marine environment, we cast parts in Duplex Stainless Steel (CD4MCU), Super Duplex, CF8M (316L Stainless), and Nickel alloys like Monel. These offer exceptional resistance to pitting and chloride stress corrosion.
Q.Do you supply castings for offshore oil and gas platforms?
Yes, we are a trusted OEM casting parts manufacturer for the offshore industry, supplying high-pressure subsea valve bodies and structural components that meet strict PED and ASTM standards.
Q.Are your marine castings tested for internal defects?
Absolutely. All critical marine and subsea castings undergo 100% Non-Destructive Testing (NDT), including Radiographic Testing (RT) and Dye Penetrant Testing (DPT) to ensure zero internal or surface defects.
Last updated: May 2026