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