Monel Alloy K500 ®

Monel Alloy K500 ® is a nickel-copper alloy which can be hardened through cold drawing and precipitation. With the elements of aluminium and titanium, Monel alloy K500 offers the excellent resistance to corrosion of Alloy 400; with elevated strength, hardness, erosion resistance and oxidation fatigue resistance. When compared to K400, K500 has shown to have a much higher tensile and yield strength.

West Special Fasteners are manufacturers of Incoloy Monel Alloy K500 Fasteners.

Monel Alloy K500 Fasteners such as Bolts, Nuts, Washers, Socket Capscrews, Socket Setscrews, Socket Countersunk, Studs, Studbolts, screws & machined components to drawings can all be produced at West Special Fasteners Limited.

We can also supply round bar in Monel Alloy K500.

Monel Alloy K500 is used in a number of applications, including the oil & gas industry in pump shafts, valve parts and drill collars. Chemical process industry in production of chlorinated plastics, processes involving organic acids and applications that include Scrapers, Doctors Blades and Pulp Processing in paper production. Monel Alloy K500 is also used for components in the marine and shipbuilding industry for valve parts, propellers, fasteners and gyroscopes.

West Special Fasteners specialises in exotic metals and have supplied major UK companies with Monel Alloy K500 bolts, nuts etc.

We look forward to helping with your Monel Alloy K500 requirements and would welcome any enquiries by telephone on + 44 (0)1246 291111 or email

Typical Chemical Analysis

C Si Mn P S Cr Ni Mo
0.250 0.500 1.500 0.010 63.00
W N2 Nb Ti Co Cu Al B
0.35-0.85 27.0-33.0 2.3-3.20
V Fe Mg Ta Nb + Ta Ca O2 Bi
Se Sn Zn Pb

Typical Mechanical Properties

Tensile Strength: 900N/mm² Min Impacts:
0.2% Proof Stress: 620N/mm² Min
Elongation: 20% Stress Rupture:
Reduction of Area:
Hardness: 250 HB
Other Remarks: Mechanicals based on section size up to and including 25mm in the hot worked, solution treated and precipitation treated condition