Engineered for Demanding Industries

About Us

Integrity Stainless and Alloy Ltd delivers high-performance stainless steel, duplex, super duplex, and nickel alloys for the world’s most demanding industries: Oil & Gas, Defence, Nuclear and Petrochemical.

Based in Rotherham, South Yorkshire, and part of the Houston based multi-national GMI Group, we provide a global metals solution with unmatched scale, speed, and reliability.

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Why Choose Integrity?

Premium Materials, Ready to Dispatch: We stock one of the world’s largest inventories of NORSOK-compliant duplex and super duplex bars, alongside high-performance nickel alloy pipes and forgings, ensuring rapid delivery for critical projects.
Global Expertise, Local Service: As part of the GMI Group, we combine the capabilities of GMI Group Inc. (carbon and high-yield flanges, pipe, fittings), Wilhelm Maass (NORSOK M650-qualified forgings), and Maass Special Alloys (nickel alloy pipe stockists) to offer a single-source solution.
Certified for Excellence: Our materials meet stringent standards, including NORSOK M650 and Statoil approvals, guaranteeing reliability for high-stakes applications.
Tailored for Your Success: From subsea oil pipelines to nuclear reactors, our metals are engineered to keep your projects on schedule and on spec.

Partner with Integrity Stainless and Alloy Ltd for metals you can trust, backed by global expertise and rapid response. Contact us today to power your next project.

Our Products

High-Performance Metals for Critical Applications

Integrity Stainless and Alloy Ltd supplies premium stainless steel, duplex, super duplex, and nickel alloys engineered for the Oil & Gas, Defence, Marine and Nuclear industries. With one of the world’s largest inventories of NORSOK compliant bars, we guarantee rapid delivery, from 24 hours, to keep your projects on schedule.

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