X17U4 Stainless maraging steels
Spécifications
- Common name
17-4PH 630
- EU
X5CrNiCuNb16 -4
- USA
UNS:S17400
Typical composition
- C
< 0.07
- Ni
4
- Cr
16,5
- Cu
4
- Nb
0,35
Applications
• Forgings and mechanical parts in stainless steel requiring very good mechanical properties and an acceptable coefficient of friction.
Mechanical properties
• Precipitation hardened martensitic stainless steel.
• Good resistance to various corrosive agents.
• Good weldability.
Mechanical features
| Heat treatment | UTS (N/mm²) | A (%) | KV -60°C (J) |
|---|---|---|---|
| H + V 550°C | 1070 | 10 | 120 |
| H + V 620°C | 950 | 16 | 140 |
- Solution treated : H
Annealed : R - Thermo-mechanical treatment : TM
Quenched and tempered : T+RV - Sub-zero treatment : F
Solution treated and aged : T+RV
See also
APX4
Martensitic stainless steels
- Aero engine
- Corrosion stainless steel
- Fasteners
- Surgical instruments
Spécifications
- EU : X4CrNiMo16-5-1
Heat treatment
- T + Rv 400°C
- T + Rv 580°C
Read more
X15U5W
Stainless steels with structural hardening
- Aero structures
Spécifications
- Common name : 15-5PH ; XM12
- EU : X5CrNiCu15-5
- USA : UNS:S15500
Heat treatment
- H + V 550°C
- H + V 620°C
Read more
MARVAL13X
Stainless maraging steels
- Aero engine
- Aero structures
- Brake system
- Fasteners
- Gear box
- Heligrid
- Landing grid
Spécifications
- Common name : PH13-8Mo ; XM13
- EU : X3CrNiMoAl13-8-2
- USA : UNS:S13800
Heat treatment
- H + V 540°C
- H + V 560°C
Read more
X15U5W
Stainless maraging steels
- Aero structures
Spécifications
- Common name : 15-5PH ; XM12
- EU : X5CrNiCu15-5
- USA : UNS:S15500
Heat treatment
- H + V 550°C
- H + V 620°C
Read more