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Precipitation hardening stainless steels

Osprey® 17-7 PH

S17700 · 1.4568 · X7CrNiAl17-7 · 631

Osprey® 17-7 PH is a precipitation hardening stainless steel for high-strength applications up to 400°C (750°F). It is typically used in chemical, oil, gas and aerospace applications.

Chemical composition, %

C
0.09
Si
1.0
Mn
1.0
P
0.04
S
0.04
Cr
16.0-18.0
Ni
6.5-7.75
Al
0.75-1.50
Fe
Bal.

Designations

UNSS17700
EN Number1.4568
EN NameX7CrNiAl17-7
ASTM, AISI631

Suitable processes

  • Additive manufacturing
  • Metal injection moulding

Other precipitation hardening stainless steels

Osprey® 15-5 PH S15500 · 1.4545 · UNS S1550 Osprey® 17-4 PH S17400 · 1.4548 · X5CrNiCuNb16-4 · 630 Osprey® PH13-8Mo S13800 · 1.4534 · X3CrNiMoAl13-8-2