17-4PH is a well-established precipitation hardening martensitic stainless steel capable of achieving very high strength and hardness after a relatively simple heat treatment. It offers excellent corrosion resistance combined with a structured range of mechanical property levels depending on the precise heat treatment applied.
The materials can be readily machined and fabricated in the softer tempers and can then be heat-treated to exceptional strength and dimensional stability. 17-4PH is widely used in the chemical, petrochemical, offshore, paper, and aerospace industries making best use of its outstanding corrosion resistance, wear resistance, strength and hardness.
Surgical and dental instrument, screwdriver.
17- 4 retains a high strength of precipitation hardening stainless steels a majority of applications are within the aerospace sector and OAG applications
- Valves and engine components
- Turbine blades
- Aircraft structures
|Cr||15,0 - 17,0|
|tensile strength Rm||1000-1100 MPa|
|elongation A||5 - 8|
|Aged at 480 ⁰C||specification values|
|tensile strength Rm||1150 – 1350 MPa|
|elongation A||7 - 15|
Alloy 17-4PH is provided in the solution-annealed condition (Condition A). Mechanical properties may be improved by subsequent age hardening treatments. These aging treatments are commonly described as conditions H900, H1025, H1075, H1150, H1150M and H1150D.
|Condition||UTS||0.2% Yield||Elongation||Reduction of area||Hardness Brinel|
Hempel Special Metals are able to supply this grade in many of the conditions in the following forms :
Sheet/ Plate/ strip 0.2mm < 90mm
Bars 6.35mm Dia < 250mm Dia
ECONOXX.com offers buyers a new and uncomplicated procurement channel, which also includes small quantities and materials in special alloys at favourable conditions.
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Round bars (1)
- UNS S17400
- AMS 5643, AMS 5604, ASTM A564