N09925 / Incoloy Alloy 925 / NS 2401 / H 09925 Bar / Rod / Wire / Forging For Marine And Offshore Engineering
N09925/Incoloy Alloy925/NS 2401/H 09925 Bar/Rod/Wire/Forging With Superior Mechanical Properties For Marine And Offshore Engineering
Incoloy® 925 (UNS N09925) is a nickel-iron-chromium alloy enhanced with molybdenum, copper, titanium, and aluminum, combining high strength with excellent corrosion resistance. It offers protection against both oxidizing and reducing environments, making it suitable for harsh conditions. The alloy is particularly effective against chloride-induced stress-corrosion cracking, pitting, and crevice corrosion.
| Chemical Composition Wt.% | % | Fe | C | Si | Mn | S | Cr | Ni | Cu | Mo | Ti | Nb | Al |
| Min | 22 | 19.5 | 42 | 1.5 | 2.5 | 1.9 | 0.1 | ||||||
| Max | 0.03 | 0.5 | 1 | 0.03 | 22.5 | 46 | 3 | 3.5 | 2.4 | 0.5 | 0.5 |
| Physical Constants | Density(g/cm³) | 8.08 | |||||
| Melting Range(℃) | 1311-1366°C | ||||||
| AlloyState | Yield Strength Rm N/mm2 | Tensile Strength Rm N/mm2) | Elongation A5% |
| Solid Solution State | 250 | 550 | 35 |
Trade Code
| GB | ISC | Commercial Code | UNS |
| NS 2401 | H 09925 | Incoloy 925 | UNS N09925 |
INCOLOY® Alloy 925 (UNS N09925 / NS 2401 / H 09925) is a precipitation-hardenable nickel-iron-chromium alloy with added molybdenum, copper, titanium, and aluminum. It combines high strength with excellent corrosion resistance, making it ideal for demanding applications.
Key Features of INCOLOY Alloy 925
- High Strength & Toughness
Precipitation hardening enhances mechanical strength.
Good impact resistance, even at subzero temperatures.
- Excellent Corrosion Resistance
Resists pitting, crevice corrosion, and stress corrosion cracking in chloride-rich environments.
Strong resistance to reducing and oxidizing acids like sulfuric and phosphoric acid.
- Good Fabricability & Weldability
Easily hot-worked, cold-worked, and machined.
Weldable using standard nickel-based alloy welding techniques.
- Outstanding Performance in Sour Gas Environments
Suitable for oil and gas applications, including sour well components.
Resists sulfide stress cracking (SSC) and hydrogen embrittlement.
INCOLOY® Alloy 925 (UNS N09925 / NS 2401 / H09925) is a nickel-iron-chromium alloy with added molybdenum, copper, titanium, and aluminum. It is designed for high-strength applications in corrosive environments, particularly in the oil and gas industry.
Applications of INCOLOY Alloy 925 (Bar/Rod/Wire/Forging)
1. Oil & Gas Industry
- Downhole & Wellhead Components: Used in tubing, hangers, and packers due to its resistance to sulfide stress cracking (SSC) in sour gas environments.
- Valves & Fittings: Ideal for offshore drilling and production equipment.
- Piping Systems: Suitable for handling corrosive brines and hydrocarbons.
2. Marine & Offshore Engineering
- Propeller Shafts & Fasteners: Resistant to seawater and marine environments.
- Pump Shafts & Valves: High corrosion and erosion resistance make it ideal for marine applications.
3. Aerospace & Power Generation
- Gas Turbine Components: Withstands high temperatures and corrosive combustion environments.
- Heat Exchanger Parts: Used in chemical processing and nuclear power plants.
4. Chemical & Petrochemical Processing
- Heat Exchangers & Reactors: Resists chloride-induced stress corrosion cracking.
- Storage Tanks & Piping: Suitable for handling acidic and alkaline substances.
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