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.

Maraging Steel 250

Maraging Steel

C250 Maraging Steel

Type C250 cobalt containing grade of maraging steel, produced by vacuum arc re-melting, provides very high strength (nominally 250 ksi tensile) with an above average level of toughness. We offer C250 in a variety of shapes and incremental sizes to choose from.

Excellent Strength Retention

The alloy retains its strength up to 450°C and good notch impact is maintained down to minus 50°C and below. This material may be nitrided. C250 is usually supplied in the annealed condition where the microstructure consists of fine martensite. This structure is then maraged (precipitation hardened) to achieve final properties employing a relatively low temperature that results in the required combination of high strength and toughness. The alloy has a density of 8.02 g/cc.

Machinability & Welding

Maraging steels are usually machined in the annealed condition, however, they can be machined in the maraged condition. Components can be machined close to finished dimensions as the low temperature maraging treatment results in minimal distortion. In addition, the small contraction of approximately 0.05% due to maraging results in good dimensional stability. C250 steel can be readily welded.

Typical Applications

Commercial applications for this engineering material include:

  • Missile casings
  • Tooling
  • Ordnance mounting blocks
  • High performance Autosport components
  • Couplings
  • Jet engine and helicopter drive shafts
  • Load cells

We stock C250 in flats, round bar, plate and sheet.

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 C250 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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