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Product Range

The Nauticalloy product range encompasses a meticulously engineered portfolio of marine-grade stainless steel alloys, selected to address the most challenging operational conditions across diverse marine propulsion applications. Our standard grades are selected to provide coverage for the broadest spectrum of performance requirements, from applications demanding corrosion resistance to those requiring superior yield strength, as well as alloys that combine both properties for demanding operational environments.

Standard Nauticalloy grade portfolio

We supply the following range of grades as standard specifications. Each is suitable for specific performance criteria and operational demands. Click on each link below for detailed product specifications and mechanical properties:

  • Nauticalloy 22HS - High-strength marine alloy combining exceptional yield strength with superior corrosion resistance for demanding applications.
  • Nauticalloy 4462 - Premium duplex stainless steel offering excellent strength-to-weight ratio and pitting corrosion resistance.
  • Nauticalloy 4542 - Premium precipitation-hardening martensitic grade delivering exceptional strength characteristics and corrosion resistance for high-performance marine applications.
  • Nauticalloy 4404 - High-performance austenitic grade delivering excellent corrosion resistance and superior fabrication characteristics.
  • Nauticalloy 4057 - Martensitic chromium-nickel stainless steel combining high strength with good corrosion resistance for marine applications.
  • Nauticalloy 4501  - Super-duplex stainless steel delivering exceptional mechanical properties and outstanding resistance to chloride stress corrosion cracking.
  • Nauticalloy 4307 - Versatile austenitic stainless steel providing excellent general corrosion resistance and superior mechanical properties.

Bespoke alloy solutions

Whilst our standard Nauticalloy portfolio addresses the majority of marine propeller shaft applications, our metallurgical capabilities extend significantly beyond these core specifications.

We maintain established supply partnerships and manufacturing expertise to provide specialised alloy solutions including super-duplex grades, high-yield strength steels and advanced corrosion-resistant alloys upon client request.

This bespoke capability ensures that regardless of application complexity or performance demands, we can deliver the optimal metallurgical solution for your marine propulsion requirements.

Material selection and technical consultation

For detailed technical specifications, mechanical property data or consultation regarding alternative alloy requirements, please contact our specialist Sales Team
at +44 (0)1902 409409 or email sales@millstockstainless.com. We will provide technical support throughout the material selection and specification process.

Related Pages

Nauticalloy 22HSNauticalloy 4462Nauticalloy 4542Nauticalloy 4404Nauticalloy 4057Nauticalloy 4501Nauticalloy 4307

For technical consultation, contact our specialist Sales Team at +44 (0)1902 409409 or email sales@millstockstainless.com

Millstock Stainless Ltd

Fusion House
The Crescent
Willenhall
West Midlands
WV13 2QR
United Kingdom

Phone: +44 (0) 1902 409409

Email: sales@millstockstainless.com

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