17-4PH / 630 Age-hardening stainless steel round bar, hot-rolled or -forged
- Standards of 17-4PH :
- ASTM A693 grade 630 (AMS 5604B) UNS S17400
- EURONORM 1.4542 X5CrNiCuNb 16-4
- AFNOR Z5 CNU 17-4PH
- DIN 1.4542
- Properties of AISI 630:
- AISI 630 (17Cr-4Ni) is a martensitic precipitation/age-hardening stainless steel offering high strength and hardness
- It has good fabricating characteristics and can be age hardened
- Best machinability quality is in solution P 800 (H1150M) and P930 (H 1150)
- Applications of 17-4PH :
- Offshore (foils, helicopter deck platforms and more)
- Food industry
- Pulp and paper industry
- Aerospace (turbine blades, etc.)
- Mechanical components
- Nuclear waste casks
- Size range:
- Hot-rolled diameter: 10-30mm
- Hot-forged diameter: 30-800mm
- We could supply 630 stainless steel cold drawn bright bar with hardness around HRC 40 after heat treatment

