17-4PH
Precipitation Hardening Stainless Steel
Surcharge
£977 per tonne
Surcharge Price History for 17-4PH
| JUN 18 | SEP 18 | DEC 18 | MAR 19 | TODAY |
|---|---|---|---|---|
| £1,175.00 | £1,188.00 | £1,089.00 | £1,045.00 | £977.00 |
Product Method
Rolled or Forged
Finishes
Black Bar or Bright Bar
Description
17-4PH grade steel is a precipitation hardening stainless steel with excellent corrosion resistance, superior to martensitic grades such as 431 and 410, and comparable to austenitic grade 304.
It is heat treated by age hardening and has the potential for very high strengths (between 40-47HRc in the H900 condition). The ageing process should be controlled as it may affect the material’s corrosion resistance.
Arc and resistance welding processes used on standard grades of stainless steel are applicable to 17-4PH stainless steel. The low hardness enables sections up to 100mm to be welded without pre heating.
Size Range
36mm - 305mm Dia
Typical applications of 17-4PH grade steel
- Valve internals
- Stems
- Shafts
- Gates
- Seats and seal rings
- Tubing hangers