Inconel 625 Nickel Alloy Sheet (AMS 5869, UNS N06625)
Inconel 625 Nickel Alloy Sheet: Properties, Heat Treatment, and Applications
AMS 5869 is a specification that covers Inconel 625, a high-performance nickel-chromium alloy known for its exceptional corrosion resistance, high strength, and excellent fabricability. This alloy is widely used in demanding environments, including aerospace, marine, chemical processing, and nuclear applications.
Inconel 625 (UNS N06625) offers outstanding fatigue resistance, creep strength, and oxidation resistance, making it ideal for extreme temperatures and corrosive conditions. Its versatility allows it to be formed into sheet, strip, and plate forms while maintaining structural integrity.
Specifications
AMS 5599
AMS 5599 DDQ
AMS 5869
AMS 5879 LCF
ASTM B443
ASME SB 443
BS 3075 NA21
DIN 17750
Chemical Composition (Wt %)
| Ni | Cr | Fe | Mo | Nb+Ta | C | Mn | Si | Ph | S | Al | Ti | Co | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | Bal | 20 | – | 8 | 3.15 | – | – | – | – | – | – | – | – |
| Max | – | 23 | 5 | 10 | 4.15 | 0.10 | 0.50 | 0.50 | 0.015 | 0.015 | 0.40 | 0.40 | 1.0 |
Inconel 625 Sheet AMS 5869 Mechanical Properties
| PROPERTY | 21°C | 204 °C | 316 °C | 427 °C | 538 °C | 649 °C | 760 °C | 871 °C |
| Ultimate Tensile Strength /Mpa | 992.9 | 923.9 | 910.1 | 910.1 | 896.3 | 820.5 | 537.8 | 275.8 |
| 0.2% Yield Strength /MPa | 579.2 | 455.1 | 434.4 | 420.6 | 420.6 | 413.7 | 406.8 | 268.9 |
| Elongation % | 44 | 45 | 42.5 | 45 | 48 | 34 | 59 | 117 |
| Coefficient of Thermal Expansion µm/m⁰C | – | 13.1 | 13.3 | 13.7 | 14 | 14.8 | 15.3 | 15.8 |
| Thermal Conductivity /kcal/(hr.m.°C) | 8.5 | 10.7 | 12.2 | 13.5 | 15 | 16.4 | 17.9 | 19.6 |
| Modulus of Elasticity/ MPa | 2.07 | 1.93 | 1.93 | 1.86 | 1.79 | 1.65 | 1.59 | – |
Price of Inconel 625 Plate & Sheet Per kg
| UNS N06625, HR, CR, 0.200 X 80 MM | US $24.75/ Kg |
| DIM : 0.360 X 205MM COLD ROLLED, ANNEALED Alloy 625 | US $28.17/ Kg |
Heat Treatment of AMS 5869 Inconel 625
To optimize the mechanical properties of Inconel 625, AMS 5869 specifies several heat treatment processes:
1. Solution Annealing
Temperature Range: 1900°F – 2100°F (1038°C – 1149°C)
Process: The material is heated to dissolve precipitates, then rapidly quenched (typically in water).
Result: Improves ductility, corrosion resistance, and homogenizes the microstructure.
2. Aging (Precipitation Hardening)
Temperature Range: 1200°F – 1400°F (649°C – 760°C)
Process: After solution annealing, aging promotes the formation of gamma prime (γ') and gamma double prime (γ'') phases, enhancing strength.
Result: Increases tensile strength and creep resistance while maintaining toughness.
3. Stress Relieving
Temperature Range: 1200°F – 1400°F (649°C – 760°C)
Process: Used after welding or cold working to reduce residual stresses.
Result: Prevents stress corrosion cracking (SCC) and improves dimensional stability.
Lork Group is a trusted global supplier of Inconel 625 Nickel Alloy Sheets, compliant with AMS 5869, ASTM B443, ASME SB 443, and DIN 17750 standards. Our high-performance nickel-chromium alloy sheets offer exceptional corrosion resistance, high-temperature strength, and superior fatigue resistance, making them ideal for:
- Aerospace & Jet Engine Components
- Chemical Processing Equipment
- Marine & Offshore Applications
- Nuclear & Energy Industry
- Motorsport Exhaust Systems
Get Your Free Quote Today!
Contact us for premium Inconel 625 sheets tailored to your project requirements.
Email: susan@lorkgroup.com
WhatsApp: +86 19937075488
Hot Tags: Inconel 625, Alloy 625, Nickel Sheet, AMS 5869, UNS N06625, W.-Nr. 2.4856, solid-solution strengthened nickel alloy, high temperature alloy sheet, corrosion resistant alloy
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