Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of Nickel Alloy 925 Supplier | UNS N09925 Bar, Pipe, Tube & Forgings Manufacturer in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
As a leading supplier of high-performance nickel alloys, we provide Nickel Alloy 925 (UNS N09925) for demanding applications. This age-hardenable nickel-iron-chromium alloy is engineered to deliver exceptional strength and corrosion resistance in severe environments, including sour gas service, marine components, and fasteners. For reliable material specifications, technical data sheets, and competitive pricing on this versatile corrosion-resistant alloy, contact our experts today.
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Nickel Alloy 925 Product Overview
Nickel Alloy 925 is a precipitation-hardening nickel-iron-chromium alloy strengthened by additions of molybdenum, copper, titanium, and aluminum. This advanced alloy combines the excellent corrosion resistance of nickel-based alloys with enhanced mechanical strength required for demanding oilfield and offshore environments.
As a high-performance UNS N09925 nickel alloy supplier, Xi'an Dongmeng Group Co., Ltd manufactures and supplies Alloy 925 products including seamless pipes, tubes, bars, forgings, flanges, and CNC machined components for global industrial applications.
The alloy is widely used in:
Sour gas wells
Downhole oilfield equipment
Marine engineering
Chemical processing systems
High-pressure valves
Fasteners and completion tools
Compared with standard corrosion-resistant alloys, Nickel Alloy 925 offers superior resistance to:
Sulfide stress cracking (SSC)
Stress corrosion cracking (SCC)
Pitting corrosion
Crevice corrosion
Chloride attack
Hydrogen embrittlement
This makes it a preferred material for harsh environments requiring both high strength and long-term reliability.
Chemical Composition
| Weight% | Ni | Cr | Fe | Mo | Cu | Ti | Al | Mn | Si | Nb | C | S |
| Alloy 925 | 42 - 46 | 19.55 - 22.5 | 22 min | 2.5 - 3.5 | 1.5 - 3.0 | 1.9 - 2.4 | 0.1 - 0.5 | 1.0 max | 0.5 max | 0.5 max | 0.03 max | 0.03 max |
Mechanical Properties
| 0.2% Proof Stress | 758-965 N/mm2 | 110-140 ksi |
| Tensile Strength | 965 N/mm2 | 140 ksi |
| Elongation, 5.65√S0 and 4D | 18% | |
| Reduction of Area | 25% | |
| Hardness | 38 HRC max. | |
| Impact Strength(-60oC) Longitudinal | 47J av (43J min) | 35 ft.lb av (32 ft.lb min) |
Physical Properties
| Density (Kg.m-1) | 8080 |
| Magnetic Permeability (20°C) | 1.001 |
| Young's Modulus (N/mm2) | 199 |
| Specific Heat, 20°C (J/(g.K)) | 435 |
| Electrical Resistivity, 20°C (Ω-m) | 1.17x10-6 |
| Electrical Conductivity, 20°C (mΩ/mm2) | 0.25 (1.48% IACS) |
| Thermal conductivity, 20°C (W/(m.K)) | 12 |
| Mean coefficient of thermal expansion, 20-100°C (m/m/K) | 13.2x10-6 |
Features
Corrosion performance is particularly suited to the sour environments of down-hole crude oil and natural gas wells
Very high-strength, applicable to tooling applications and reducing suspended load of critical components
Excellent resistance to stress corrosion cracking
Industry Applications of Nickel Alloy 925
Oil & Gas Industry
Applications
Downhole tubing
Packers
Safety valves
Completion equipment
Wellhead systems
Benefits
Sour gas resistance
High pressure reliability
Long service life
Offshore & Marine Industry
Applications
Seawater systems
Offshore connectors
Marine fasteners
Subsea components
Benefits
Excellent seawater resistance
Corrosion durability
Structural stability
Chemical Processing Industry
Applications
Acid handling systems
Pressure vessels
Heat exchangers
Chemical pipelines
Benefits
Chemical corrosion resistance
High temperature stability
Reduced maintenance cost
Precision Engineering Industry
Applications
CNC machined components
High-strength fasteners
Aerospace fittings
Precision connectors
Benefits
Excellent machinability
High dimensional accuracy
Stable mechanical performance
Machining Performance Analysis
CNC Machining Characteristics of UNS N09925
Due to its precipitation-hardening characteristics and high nickel content, Nickel Alloy 925 requires optimized machining parameters and rigid tooling systems.
Recommended Processing Practices
Use carbide cutting tools
Maintain low cutting speed
Apply heavy-duty coolant systems
Use stable clamping structures
Avoid excessive heat accumulation
Machined Product Types
Oilfield fasteners
Valve stems
Completion tools
High-pressure fittings
Precision threaded components
Xi'an Dongmeng Group Co., Ltd provides precision CNC machining services for custom Nickel Alloy 925 components according to customer drawings and international tolerances.
Welding Performance Analysis
Weldability of Nickel Alloy 925
Alloy 925 demonstrates good weldability using standard nickel alloy welding procedures.
Recommended Welding Methods
GTAW / TIG Welding
GMAW / MIG Welding
Plasma Arc Welding
Welding Considerations
Minimize heat input
Maintain clean welding surfaces
Use compatible nickel alloy filler metals
Post-weld heat treatment may be required
Proper welding procedures help maintain:
Corrosion resistance
Mechanical strength
Structural integrity
Corrosion Resistance Analysis
Excellent Corrosion Resistance in Sour Gas Environments
One of the primary advantages of UNS N09925 Nickel Alloy is its outstanding resistance to aggressive oilfield corrosion conditions.
Resistant Media
Hydrogen sulfide (H₂S)
Chloride-containing brines
Seawater
Acidic production fluids
CO₂ environments
Corrosion Resistance Features
Outstanding sulfide stress cracking resistance
Excellent pitting corrosion resistance
Strong crevice corrosion protection
Superior stress corrosion cracking resistance
This alloy is widely approved for:
NACE MR0175 service
Offshore drilling systems
Deep well completion equipment
Nickel Alloy 925 Product Specifications
| Product Form | Size Range |
|---|---|
| Round Bar | 6mm – 500mm (0.24" – 19.68") |
| Forged Bar | Up to 800mm (31.5") |
| Seamless Pipe | 6mm – 630mm OD |
| Tube | 6mm – 120mm OD |
| Plate | 0.5mm – 100mm |
| Forgings | Custom Available |
| CNC Parts | According to Drawings |
Surface Finish
Bright
Pickled
Polished
Machined
Black Surface
Supply Conditions
Solution Annealed
Age Hardened
Customized Heat Treatment
Standards & Specifications
International Standards
ASTM B637
ASTM B805
ASME SB637
NACE MR0175
ISO Standards Available
Material Designations
| Standard | Grade |
|---|---|
| UNS | N09925 |
| W.Nr | 2.4858 |
| Alloy Name | Nickel Alloy 925 |
Manufacturing Capability
Xi'an Dongmeng Group Co., Ltd Production Capacity
We supply industrial nickel alloy materials for global EPC contractors, oilfield service companies, distributors, and industrial manufacturers.
Production Advantages
Advanced vacuum melting technology
Precision forging capability
CNC machining workshops
Strict PMI inspection
Large inventory support
Export-oriented packaging system
Available Supply Forms
Bars
Pipes
Tubes
Plates
Forgings
Flanges
Custom machined parts
Inspection & Quality Assurance
Complete Industrial Quality Control System
Xi'an Dongmeng Group Co., Ltd implements strict inspection procedures throughout production.
Inspection Methods
PMI Testing
Ultrasonic Testing (UT)
Eddy Current Testing
Tensile Testing
Hardness Testing
Chemical Composition Analysis
Corrosion Testing
Dimensional Inspection
Quality Documents
EN 10204 3.1 Certificate
Mill Test Certificate (MTC)
Third-Party Inspection
SGS / BV / TUV Support
Our quality system ensures every batch of Nickel Alloy 925 products meets international industrial standards.
Packaging & Shipping
Export Packaging Solutions for Global Delivery
We provide secure industrial export packaging for long-distance international transportation.
Packaging Methods
Wooden export crates
Waterproof wrapping
Anti-rust protection
Bundle packing
Customized labels
Shipping Options
Sea freight
Air freight
Railway transportation
Express logistics
Why Global Buyers Choose Xi'an Dongmeng Group Co., Ltd
Industrial Manufacturing Experience
Professional experience in nickel alloys, stainless steel, copper alloys, and special metal materials.
Strict Quality Control
Full-process inspection system from raw material to final shipment.
Fast Delivery
Stable inventory and efficient production scheduling for urgent projects.
Custom Processing Support
OEM machining, custom cutting, forging, and CNC manufacturing available.
Export Service Capability
Professional export packaging and global logistics support.
Technical Support
Material selection and engineering assistance for industrial applications.
FAQ
What is Nickel Alloy 925 used for?
Nickel Alloy 925 is mainly used in oil & gas, offshore engineering, marine systems, and chemical processing applications requiring high strength and corrosion resistance.
Is UNS N09925 suitable for sour gas service?
Yes. Alloy 925 offers excellent resistance to sulfide stress cracking and is widely used in sour gas environments.
Can you provide custom CNC machining services?
Yes. Xi'an Dongmeng Group Co., Ltd provides CNC machining and customized fabrication according to customer drawings.
What product forms are available?
We supply bars, pipes, tubes, plates, forgings, flanges, and precision machined components.
Do you provide third-party inspection?
Yes. SGS, BV, TUV, and other third-party inspections are available upon request.
What is the delivery time?
Standard sizes are usually available from stock. Customized production lead times depend on specifications and order quantity.
Can Alloy 925 resist seawater corrosion?
Yes. Nickel Alloy 925 demonstrates strong resistance to chloride and seawater corrosion.
Do you support global export shipping?
Yes. We export worldwide with professional industrial packaging and logistics solutions.
Contact Us
Xi'an Dongmeng Group Co., Ltd
Professional Supplier of Nickel Alloy 925 / UNS N09925 Products
Phone / WhatsApp / WeChat: +8615769214734
Email: office@dongmjd.com
Products Available:
Nickel Alloy Bars
Seamless Pipes & Tubes
Forgings
Plates & Sheets
CNC Machined Components
Custom Industrial Metal Solutions
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