Inconel® 625 AMS 5666
Inconel® 625 is a nonmagnetic nickel based alloys with excellent corrosion and oxidation-resistance. Its high strength and toughness in the temperature up to 2000°F (1093°C) are derived primarily from the solid solution effects of the refractory metals, columbium and molybdenum, in a nickel-chromium matrix. The alloy has excellent fatigue strength and stress-corrosion cracking resistance to chloride ions.
Stock sizes: 0.375”dia to 8.000” diameter
Common Specifications:
- AMS 5666
- ASTM-B446
- ASME-SB-446
- PWA-S-5666
- Pratt & Whitney LCS F-17
- General Electric S-400 / S-SPEC-35
Industry Trade Names:
- Inconel 625
- Pyromet 625
- VDM 625
- ATI 625
- Nickel 625
Common Applications:
- Jet engines
- Heat shields
- Chemical plant hardware
- Furnace hardware
Chemistry:
| Element | Min. | Max. |
|---|---|---|
| Carbon | — | 0.10 |
| Manganese | — | 0.50 |
| Silicon | — | 0.50 |
| Phosphorus | — | 0.015 |
| Sulfur | — | 0.015 |
| Chromium | 20.00 | 23.00 |
| Molybdenum | 8.00 | 10.00 |
| Columbium (Niobium) | 3.15 | 4.15 |
| Titanium | — | 0.40 |
| Aluminum | — | 5.00 |
| Cobalt | — | 0.40 |
| Iron | ||
| Nickel | remainder |
Melt practice: VIM-VAR or VIM-ESR.
Minimum tensile properties:
| Specimen Orientation | Diameter or Least Distance Between Parallel Sides, inch | Tensile Strength ksi | Yield Strength at 002% Offset ksi | Elongation in 4D% | Reduction of Area % |
|---|---|---|---|---|---|
| Longitudinal | Up to 10.00, incl. | 185 | 150 | 12 | 15 |
| Long-Transverse (Forgings) | Up to 5.00, incl ——————- Over 5.00 to 10.00, incl | 180 —— 180 | 150 —— 145 | 10 —— 10 | 12 —— 12 |
| Transverse (Bars) | Up to 5.00, incl ——————- Over 5.00 to 10.00, incl | 180 —— 180 | 150 —— 145 | 6 —— 6 | 8 —— 8 |
| Property | Up to 4.00 inches (101.6 mm), incl | Over 4.00 inches (101.6 mm) to 10 inches (254 mm), incl |
|---|---|---|
| Tensile Strength | 120 ksi (827 MPa) | 110 ksi (758 MPa) |
| Yield Strength at 0.2% Offset | 60 ksi (414 MPa) | 50 ksi (345 MPa) |
| Elongation in 4D | 30% | 25% |
