Overview
14-4 PH alloy is an extremely high-strength stainless steel. The PH means precipitation hardening, which is a slight variation on classic heat treatment for Martensitic stainless steels. The 14-4 PH alloy has more corrosion resistance than the 400-series martensitic. The tensile strength is very high.
Typical Uses
Aerospace, chemical and food processing equipment, cylinders, gears, hollow shafts, landing gears, marine gas turbine, nuclear flow control, pump and valve components, pressure vessels, shaft sleeves, turbine engine parts.
MetalTek Grade
14-4 PH®
* Produced under license of AK Properties / ARMCO Advance Materials Corp.
Similar Specifications
Cast UNS: J92240
Cast Grade: 14-4 PH
Military/AMS: AMS 5340
Typical Chemical Composition (% by wt.)
Aluminum: n/a
Carbon: 0.06
Chromium: 13.50-14.25
Manganese: 0.7
Iron: n/a
Copper: 3.0-3.5
Nickel: 3.75-4.75
Lead: n/a
Tin: n/a
Silicon: 0.50-1.00
Zinc: n/a
Other: Mo 2.0-2.5; Nb 0.15-0.35; Ta 0.05 MAX; N 0.05 MAX
Minimum Mechanical Properties
Heat Treatment: Solution Anneal, HOMOG, Age