
Oil and Gas Valve Casting Supplier
Neocast Alloys is a premier oil and gas valve casting supplier. We engineer high-pressure, zero-defect custom alloy valves for pipelines, refineries, and offshore platforms.
Critical Oil & Gas Components
As a trusted industrial valve casting supplier, we cast components that endure the highest pressures and most corrosive fluids on the planet.

Engineered for Extreme Environments
Valves operating in the oil and gas sector face a triple threat: extreme internal pressures, severe external environments (like subsea saltwater), and highly corrosive internal media (sour gas, crude oil). This is why tier-1 OEMs require a dedicated oil and gas valve casting supplier.
We utilize advanced investment casting to ensure that every valve body and bonnet is structurally flawless. Our strict NDT protocol guarantees zero internal porosity, preventing catastrophic blowout failures in the field.
Furthermore, an ISO and PED certified foundry like Neocast Alloys provides access to a massive library of custom alloys. We regularly pour Duplex stainless steels and high-nickel alloys that meet strict NACE MR0175 standards for sour gas service, delivering fully machined precision valve components to global assembly lines.
Frequently Asked Questions
Q.Do your castings meet API standards for the oil and gas industry?
Yes. Our investment casting facility produces components that strictly adhere to API 6D, API 600, and ASME B16.34 standards, ensuring they meet the immense pressure and safety requirements of the oil and gas sector.
Q.How do you guarantee the pressure integrity of a valve casting?
Every pressure-retaining casting undergoes stringent Non-Destructive Testing (NDT). We perform 100% Radiography (X-Ray) and Dye Penetrant Testing in-house to ensure the complete absence of porosity or micro-shrinkage.
Q.What alloys do you cast for sour gas (H2S) environments?
Sour gas applications require NACE MR0175 compliant materials. We frequently cast valves in Duplex (CD4MCU), Super Duplex, Inconel, and various Nickel-based alloys designed to resist sulfide stress cracking.
Q.Can you provide fully machined valves ready for subsea assembly?
Absolutely. As a complete OEM supply chain partner, we not only cast the raw components but also perform precision CNC machining, providing finished, perfectly toleranced parts ready for subsea and offshore deployment.
Last updated: May 2026