Alloys Precipitation Hardening (PH) Stainless Steel

Precipitation Hardening (PH) Stainless Steel

PH alloys are similar to other stainless steel and nickel-based alloys, with one major exception: They contain small additions of copper, aluminum, phosphorus, or titanium. After a part made of a PH alloy has been formed, it is given an age-hardening treatment in which these elements precipitate as hard intermetallic compounds that significantly increase hardness and strength.

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Precipitation Hardening Grades

Designers of stainless steel and nickel alloy products must often make tradeoffs between the properties needed for manufacturing and those required for its end use, but precipitation hardening stainless steel (PH) alloys can offer a solution. Good candidates are strip and wire components that must be extensively formed or drawn during the manufacturing, then must exhibit high strength and toughness in service.

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