Description
Overview Of IN625
IN625 is a gamma prime-strengthened nickel-based superalloy doped with molybdenum and niobium, showcasing superior resistance to high-temperature oxidation and chloride-induced corrosion. Its microstructural design effectively mitigates stress corrosion cracking in marine and industrial atmospheres containing salt sprays, while maintaining structural integrity under cyclic thermal loading.
Powder Chemical Composition(wt,-%)
| Element | C | Cr | Ni | Co | Mo | Nb |
| wt% | ≤0.1 | 20.00-
23.00 |
Bal | ≤1.0 | 8.00-10.00 | 3.15-4.15 |
| Element | Al | Ti | Fe | Mn | Si | S |
| wt% | ≤0.40 | ≤0.40 | ≤5.00 | ≤0.50 | ≤0.50 | ≤0.015 |
| Element | P | Cu | O | N | – | – |
| wt% | ≤0.015 | ≤0.50 | ≤0.025 | ≤0.015 | – | – |
Physical Properties
| Size | Particle size distribution | Hall flow rate | Bulk density | Tap density | ||
| D10(μm) | D50(μm) | D90(μm) | ||||
| 15-53μm | ≥15 | 30-40 | ≤60 | ≤25s/50g | ≥4.40g/cm³ | ≥5.00g/cm³ |
Mechanical Properties
| 815CEndurance performance | ||
| Tensile strength
(Ob/Mpa) |
duration
(t/h) |
Elongation at break
(δ5/%) |
| ≥114 | ≥40 | ≥20 |
| Measuring temperature | Tensile strength
(Ob/Mpa) |
Yield strength
(Opo.2/Mpa) |
Elongation at break
(δ5/%) |
| 25℃ | ≥830 | ≥410 | ≥30 |
| 815℃ | ≥350 | ≥270 | ≥30 |
Heat Treatment Recommendation
Solution Heat Treatment:1100±10℃/1H/AC
This alloy demonstrates remarkable mechanical performance, featuring tensile and yield strengths rivaling forged materials, paired with outstanding ductility and fracture resistance. Its inherent hardness, coupled with exceptional wear resistance, anti-galling, and abrasion protection, further enhances durability under demanding environments.
Primary Applications
| Industry | Components |
| Aerospace | Turbine blades, combustor parts, nozzle guide vanes |
| Automotive | Turbocharger wheels, manifolds, valves |
| Oil and Gas | Wellhead parts, downhole tools, valves |
| Power Generation | Heat exchangers, burner components |
| Chemical Processing | Pump impellers, valves, reaction vessels |
| Medical | Dental implants, prosthetics, surgical instruments |
