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Hastelloy® Fasteners and Machined Components

Energy Bolting supply fasteners and machined components in Hastelloy materials

Socket Countersunk Screws in Hastelloy® C22 material supplied by Energy Bolting

Hastelloy® is a trademark of Haynes International Inc.

In 1922, the company invented it's first alloy under the Hastelloy brand, derived from the words "Haynes Stellite Alloy"

The corrosion-resistant Hastelloy alloys are used across a wide variety industries including: Aerospace, Chemical Process, Petrochemical, Oil & Gas, Pharmaceutical, Sea Water, LNG (Liquefied Natural Gas), Biomass, Mining, Utilities & Nuclear Power.


Summary of Hastelloy® characteristics

  • High resistance to uniform attack

  • Outstanding resistance to pitting, crevice corrosion and stress-corrosion cracking

  • Good resistance to acids such as sulfuric, nitric, hydrochloric, hydrofluoric, phosphoric and chromic

  • High resistance to oxidation at elevated temperatures.

Hastelloy materials used by Energy Bolting for fastener production include: Hastelloy® B2, Hastelloy® B3, Hastelloy® C4, Hastelloy® G30, Hastelloy® X and the more frequent grades Hastelloy® C-22 & Hastelloy® C-276


Hastelloy® C-22

Hastelloy® C-22 also known as Alloy C22 is a versatile nickel-chromium-molybdenum alloy with better overall corrosion resistance than other Ni-Cr-Mo alloys available today

Alternative Designations

Hastelloy® C22, Alloy 22, UNS N06022, ASTM B366, ASTM B564, ASTM B574, ASTM B575, ASTM B619, ASTM B622, DIN 2.4602


Hastelloy® C-276

Hastelloy® C-276 also known as Alloy C276 is a solution-annealed nickel-molybdenum-chromium alloy with the addition of tungsten.

Alternative Designations

Alloy C276, 2.4819, UNS N10276,


Energy Bolting specialise in the bespoke production of Hastelloy® fasteners & components.

Products include: Studbolts, Hex nuts, Washers, Hexagon Bolts, Hexagon Setscrews, Socket Head Capscrews, 12pt Bi-Hexagonal Bolt & Nuts, Ring Joint Gaskets & Client specific drawings and specifications


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Data contained is for information purposes only and may be revised at any time.

Energy Bolting Limited makes no recommendation or warranty of any kind and assumes no liability with respect to the accuracy of the information contained herein.


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