Product Description

Aircraft and rocket engineering, mechanical engineering, power generation, measuring and control technique

Property Features

Martensitic precipitation hardenable chromium-nickel-copper steel possessing high strength and toughness. Further strength increments can be obtained by cold forming, followed by a precipitation hardening treatment.

Technical Specifications

Material Numbers

17-4 PH 1.4542, 1.4548 S17400 X5CrNiCuNb16-4 AISI: 630, Z5CNU17, X5CrNiCuNb 17 4 4


5604, 5622, 5643

Chemical Composition

0,04 0,25 0,40 15,30 4,50 3,25 0,30

Chemical composition (average %)

Available product shapes

Long Products
Open Die Forgings
Semi-Finished Products / Billet

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BÖHLER Germany

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BÖHLER Germany