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High strength and corrosion resistance for large-diameter bolting

BUMAX NITRO 109 is the optimal solution for large-diameter high-strength bolting applications in the marine and offshore markets, and other applications that require large fasteners with excellent corrosion resistance and high-strength properties. The grade provides a strength class equivalent to 10.9 at large diameters up to M36 and even strength class 100 in M42 diameters. 

These enhanced properties are achieved through nitrogen addition, which is an effective way of strengthening austenitic stainless steels while maintaining material properties. BUMAX NITRO 109 can potentially replace more expensive nickel-based alloy fasteners, which is a common option used for corrosion-resistant fastening in large diameter and structural bolting applications.

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Stainless steel fasteners with enhanced properties

BUMAX NITRO 109 fasteners excel in terms of: 

Corrosion resistance

High strength

Ductility

Fatigue resistance

Magnetic permeability

These enhanced properties are achieved by using premium nitronic stainless steel grade that is produced to stringent BUMAX specifications by the highest quality European steel mills. Our expert fastener manufacturing processes ensure a high-performance product that is extremely reliable.

Fasteners for demanding applications

BUMAX NITRO 109 fasteners are used in marine and offshore, and other applications that require large fasteners with excellent corrosion resistance and high strength.


Standards

  • UNS: S20910

Order BUMAX® Nitro 109

BUMAX NITRO 109 is available as a manufactured-to-order product. Contact us to find out how BUMAX NITRO 109 fasteners can benefit your applications.

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BUMAX® Nitro 109 tools & resources

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