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Nimonic Fasteners

Nimonic is a nickel based alloy. Nimonic fasteners are super alloys with high temperature and low-creep resistance. It contains 50% nickel and 20% chromium, along with other elements such as titanium and aluminium.


Nimonic fasteners have good resistance to heat and corrosion. These fasteners also have good mechanical properties. Nimonic fasteners are also capable of resisting oxidation. Conventional techniques of machining used on iron also work on Nimonic. Commercial types of fasteners include J-Bolts, U-Bolts, L-Bolts, Nuts, Screws, Hex Nuts and Washers. Nimonic resists sulphuric acid environments with the addition of chromium. Industries such as heat treatment equipment, gas turbine engine, aerospace, nuclear engineering and industrial furnace parts. It is used in aircraft parts, owing to its capability to withstand high temperatures. Nimonic fasteners are available in grades such as Nimonic 75, Nimonic 80A and Nimonic 90. These alloys are known for their high-performance. These Nimonic fasteners are have excellent strength and high ductility. The microstructure of these Fasteners is highly stable. Nimonic 80A alloy was used in Rolls-Royce Nene as turbine blades.