50 grades of stainless steel

The BSSA has selected 50 Grades of Stainless Steel as its theme for 2014. Each week throughout the year, we will showcase one grade and illustrate the variety of corrosion resistant, mechanical and physical properties which determine its suitability for a wide range of applications.



305 1.4303 S30500

305 is essentially a high nickel version of 304. Its high nickel content reduces the work hardening of the grade and imparts much improved deep drawing properties.

Approximate Composition – 17.5% Cr 11.0% Ni (Exact composition ranges vary between EN and ASTM standards).

This grades combines the following characteristics:

  • Good corrosion resistance similar to that of 304
  • Excellent deep drawing, spinning and cold heading properties compared to 304
  • Highly non-magnetic and resistant to martensitic transformation with cold work

The dominant application for this grade is highly deep drawn components. This can often be achieved in one stage without intermediate annealing.

Applications which illustrate these features include:

Deep drawn components, pen barrels, automatic eyelet machines, electrical components, cold headed fasteners, automotive components

Find out more about the 50 Grades of Stainless Steel campaign

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British Stainless Steel Association (BSSA): registered in England and Wales as a private company limited by guarantee; registration no. 07547349