Stainless Steel 17-4PH

Stainless Steel 17-4PH

17-4PH is a precipitation hardening martensitic stainless steel which combines high strength and hardness (after heat treatment (up to 300°C)) with excellent corrosion resistance, and is suitable for easy fabrication. The name comes from the additions 17% Chromium and 4% Nickel.

Common applications aerospace, offshore, marine, food and oil.

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Composition of 17-4PH

C Mn Si P S Cr Nb Ni Cu
Min

15.0

0

3.0

3.0

Max

0.07

1.0

1.0

0.04

0.03

17.7

0.45

5.0

5.0

Hardness

Hardness HB Hardness HRC
17-4PH 363 39

Equivalent grades

grade 630 17-4PH 1.4542

 

All technical information is provided for guidance only, and as such is not to be relied upon in place of the full specification.

1 comment

  1. Dedicated servers - March 16, 2016 12:59 am

    Precipitation hardening steels can be readily welded using procedures similar to those used for the 300 series of stainless steels.

    Reply

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