About Smiths

We are a world-class supplier of engineering raw materials. Our objective is to provide all our customers, from the small machine shop to the large multi-national corporation, a supply path that continuously delivers the highest levels of service, quality and value.

Alloy 617 (Inconel® 617)

Nickel Chromium Cobalt Molybdenum Alloy

Alloy 617 Nickel Alloy

Alloy 617 is a nickel-chromium cobalt molybdenum alloy which combines exceptional high-temperature strength with oxidation resistance.


The alloy provides excellent resistance to a wide range of corrosive environments. Alloy 617 also benefits from ease of fabrication and can be readily welded when using conventional welding techniques.

Corrosion Resistance

The composition of alloy 617 includes substantial amounts of nickel, chromium, and aluminium for a high degree of resistance to oxidation and carburization at high temperatures. Those elements, along with the molybdenum content, also enable the alloy to withstand many wet, corrosive environments.

Typical Applications

Commercial applications for this engineering material include:

  • Power generating plants
  • Gas turbines
  • Gas valve components
  • Reformer tubes
  • Boiler tubes
  • Petrochemical plants
  • Combustion cans
  • Ducting & liners

We stock Alloy 617 in a variety of shapes.

Technical Assistance

Our knowledgeable staff and resident metallurgists will be pleased to assist you further on any technical topic. Smiths Metal Centres Limited also boasts an in-house UKAS Accredited Testing Laboratory which is unique within the multi-metal and plastic stockholding sector. We believe this underlines our total commitment to quality and our ethos of being the complete service provider.

Additional Info

A technical datasheet for Alloy 617 is available in PDF file format. To view and download, please click here.

We offer in-house processing options - for more information, please refer to our processing services.

Read our corporate brochure by clicking here.

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