ISO 9001:2015 CertifiedAPI 6A CompliantNACE MR0175 ApprovedDNV CertifiedPED Accordance
Custom Incoloy 925 Forging Parts | Alloy 925 / UNS N09925
25+ Years ISO Certified Nickel Alloy Forgings Manufacturer | Global Supply to 50+ Countries
Incoloy 925 Forged Bars & Shafts
UNS N09925 Seamless Rolled Rings
Alloy 925 Oil & Gas Forgings
Custom Incoloy 925 Forged Parts
What is Incoloy 925 (Alloy 925 / UNS N09925)?
Incoloy 925 (also known as Alloy 925, UNS N09925, and Inconel 925 in industrial uses) is a great age-hardenable nickel-iron-chromium alloy made by precisely adding of molybdenum, copper, titanium, and aluminum. This chemical formulation make it has high mechanical strength, good resistance to sulfide stress corrosion cracking (SSCC), great pitting and crevice corrosion resistance, and as well as great hot forging fabricability.
As a professional Incoloy 925 forging parts manufacturer based in Jiangyin, Jiangsu, China, Jiangsu Liangyi was established in 1997, with over 25 years of experience in custom nickel alloy forging. Our factory has 2000T-6300T hydraulic forging presses, 5M seamless ring rolling machines, and full in-house testing facilities, with an annual manufacturing capacity of 120,000 tons. Our Alloy 925 forgings are accordance with international standards including ASTM B637, NACE MR0175/ISO 15156, API 6A, DNV, and PED, they can work well in the hardest working conditions. Our clients are across North America, Europe, the Middle East, Southeast Asia, and Oceania.
Our Incoloy 925 forgings made using precision engineering technology are strictly checked from raw material melting to final inspection. They have industry-leading performance even working in hard environments. Main advantages are as following:
Good Corrosion Resistance in Hard Environments
Incoloy 925 offers great resistance to sour gas (H₂S and CO₂) environments, chloride-induced pitting and crevice corrosion, and general corrosion in strong acid media such as sulfuric acid and phosphoric acid. This makes it the ideal material for oil and gas downhole, subsea, and chemical industries where traditional alloys are not suitable.
High Strength & Toughness Without Corrosion Resistance Reduced
With correct solution annealing and age hardening heat treatment, our Alloy 925 forgings can get high yield strength, tensile strength, and great low-temperature impact toughness, while keeping good corrosion resistance. This makes the forging parts can work stably for a long time even under high pressure, alternating loads, and bad temperature conditions.
Good Fabricability & Weldability for Custom Geometries
UNS N09925 (Inconel 925) has great hot forging formability and weldability, so we can produce custom Incoloy 925 forging parts in complicated geometries. Our production range covers small precision forgings from 30kg to large heavy forging up to 30 tons, all forging parts are with consistent and uniform material properties.
Be Accordance with International Standards
All of our Incoloy 925 forging parts are manufactured in strict accordance with international standards, with a full set of traceable materials from raw material melting to finished machining. We can provide full mill test certificates (MTC 3.1/3.2) and inspection reports from a third-party like SGS, BV, DNV, and TÜV.
Incoloy 925 Forging Shapes
We can manufacture custom Incoloy 925 forging parts in a full range of shapes and sizes, strictly according to your CAD drawings and technical manuals. The followings are what we can do but not limited:
Oil & Gas Forgings including Wellhead Parts, Casing Hangers, Tubing Heads & BOP Parts
Custom Forged Pump Casings, Impellers, Shafts & Wear Parts
Melting Method for Incoloy 925 Material
To get best quality and material consistency of our Incoloy 925 forgings, we use industry-leading melting ways with strict quality control at every stage:
All of our Incoloy 925 materials have a minimum hot forging reduction ratio of 4:1, so it has uniform grain structure and mechanical properties. We provide a full set of traceable material for every heat lot, including chemical composition and mechanical property document.
Incoloy 925 Technical Specifications
Chemical Composition (ASTM B637 Standard)
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Element
Minimum Content (%)
Maximum Content (%)
Nickel (Ni)
42.0
46.0
Chromium (Cr)
19.5
22.5
Iron (Fe)
22.0
Balance
Molybdenum (Mo)
2.5
3.5
Copper (Cu)
1.5
3.0
Titanium (Ti)
1.9
2.4
Aluminum (Al)
0.1
0.5
Carbon (C)
--
0.03
Manganese (Mn)
--
1.0
Silicon (Si)
--
0.5
Sulfur (S)
--
0.03
Mechanical Properties (Age Hardened Condition)
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Property
Minimum Value
Maximum Value
Tensile Strength
140,000 psi (965 MPa)
--
Yield Strength (0.2% Offset)
110,000 psi (758 MPa)
140,000 psi (965 MPa)
Elongation (2" Gage Length)
18%
--
Reduction in Area
25%
--
Hardness (HRC)
--
38 HRC
Impact Energy (CVN at -60°C)
47 J (Average)
--
Heat Treatment Way
Solution Annealing: 996°C - 1052°C (1825°F - 1925°F), hold for 30 minutes to 4 hours, water quench to below 49°C
Age Hardening: 718°C - 760°C (1325°F - 1400°F), hold for 4-9 hours, furnace cool to 607°C - 660°C (1125°F - 1220°F), hold for minimum 12 hours, air cool to ambient temperature
Non-Destructive Testing (NDT) Standards
Ultrasonic Testing (UT): ASTM A388/A388M, API 6A standard
Thanks to its unique properties, Incoloy 925 forging parts are widely used in oil and gas, offshore subsea engineering, chemical, marine shipbuilding, power generation, and aerospace industries worldwide. The followings are part of our actual cases for main international markets:
North America Oil & Gas Downhole Tool Forgings (USA Market)
We custom-manufactured Incoloy 925 downhole tool forgings for a leading shale oil and gas company in Texas, USA, including subsurface safety valve bodies, packer core parts, tubing hanger forgings, and drill collar parts. The content of H₂S, CO₂, and chloride is high in the local Permian Basin wells, the traditional low-alloy steels are easy to rapid stress corrosion cracking. Our UNS N09925 forgings are fully accordance with API 6A and NACE MR0175/ISO 15156 standards, they can work stably for over 10 years under 150℃ high temperature and high pressure acidic working conditions, thus can greatly reduce the customer's well repair costs and unexpected downtime.
Europe Offshore Subsea Production Forgings (North Sea Market)
We supplied Alloy 925 subsea forgings, including subsea Christmas tree valve bodies, high-pressure integral flanges, pipeline connectors, and flow meter bodies, for a deep-water oil and gas field project in the Norwegian North Sea. The 1500-meter deep-sea environment has bad hydrostatic pressure, low-temperature seawater corrosion, and cyclic dynamic loads, so strict requirements are necessary on material’s strength, fatigue resistance, and corrosion resistance. Our Incoloy 925 forging parts have passed DNV third-party inspection, with a pitting resistance equivalent number (PREN) ≥ 38, they can perfectly resist seawater chloride corrosion and hydrogen sulfide stress cracking, and have been in stable service for over 8 years.
European Chemical Equipment Forgings (Germany Market)
We custom-produced Incoloy 925 forged parts, including sulfuric acid reactor flanges, stirring shaft forgings, corrosion-resistant valve bodies, valve stems, and pump casings, for a large chemical enterprise in Germany. The production line is constantly exposed to 98% concentrated sulfuric acid, phosphoric acid, and mixed acidic media, and with a high temperature of 180℃. Our UNS N09925 forgings are made by a double vacuum melting process (VIM+VAR) and optimized aging heat treatment way, they have uniform corrosion resistance and high-temperature creep strength. Compared with traditional 316L stainless steel, the service life is increased by more than 6 times, greatly reducing the customer's equipment maintenance frequency and shutdown losses.
Middle East Oil & Gas Gathering System Forgings (Saudi Arabia & UAE Market)
We supplied Alloy 925 high-pressure forgings, including gathering pipeline double studded flanges, ball valve bodies, choke valve parts, casing heads, and tubing spools, for onshore oil and gas field gathering system projects of Saudi Aramco and ADNOC. The water from this oil and gas fields in this region has high salt and H₂S content, and the high-temperature desert environments is bad, the traditional carbon steel and low-alloy steel are easy to rapid corrosion and fail. Our Incoloy 925 forging parts meet Aramco material standards, have passed strict NACE TM0177 sulfide stress corrosion tests, keep great stability under high-temperature, high-pressure acidic working conditions, and have been used in many large oil and gas field projects in the Middle East.
Southeast Asia Marine & Shipbuilding System Forgings (Singapore Market)
We supplied fully custom Incoloy 925 marine forgings for a large shipbuilding and offshore engineering enterprise in Singapore, including ship seawater cooling system valve forgings, propulsion shafting parts, deck machinery core structural parts, and offshore platform riser connectors. Vessels and offshore platforms are in tropical marine environments for long periods, facing high-concentration chloride seawater corrosion, salt spray corrosion, and cyclic fatigue loads. Our UNS N09925 forged parts have good seawater corrosion resistance and fatigue strength, no additional anti-corrosion coating required, which greatly extends the maintenance-free cycle of marine equipment, and we have obtained long-term repeat purchase orders from the customer.
Our Custom Incoloy 925 Forging Steps
We make custom forging parts from raw material to finished machining in house, with a strict quality control to make sure every part meets your requirements:
1
Drawing & Requirement Check
Check your drawings, material standards, and technical manuals with our engineering team
2
Raw Material Melting & Inspection
Qualified raw material melting with strict composition and property inspection
3
Precision Forging & Heat Treatment
Custom forging with correct heat treatment to get required material properties
4
Machining & NDT Inspection
CNC machining and full NDT inspection to ensure of size accuracy and quality
5
Final Inspection & Delivery
Final quality inspection, full documentation, and fast global delivery to your site
Why Jiangsu Liangyi as Your Incoloy 925 Forging Partner?
Established in 1997, Jiangsu Liangyi is a professional Incoloy 925 forging manufacturer in China. We have over 25 years of experience in nickel alloy and special steel forging. We provide custom forging parts from raw material melting, forging, heat treatment to precision machining in house. The followings are our advantages:
Fully Custom: We can produce custom Incoloy 925 forging parts according to your drawings, manuals, and working condition requirements. The weight of one forging piece we can make ranges from 30kg to 30,000kg. We can make complex geometries with small tolerances.
Raw Material: All of our Incoloy 925 raw materials come from the best international nickel alloy mills with full material certification.
Forging & Heat Treatment Equipment: Our factory has 2000T-6300T hydraulic forging presses, 1T-5T electro-hydraulic forging hammers, 5M seamless ring rolling machines, and automatic computer-controlled heat treatment furnaces.
Inspection Equipment: We have chemical composition analysis equipment, universal mechanical testing machines, high-temperature tensile testers, and full NDT inspection equipment (UT, MT, PT, RT) in house. All inspections are made as per ASTM, API, and EN standards. We will make sure each forging parts shipped meet the standard.
Rich Experience: We have exported our forgings to more than 50 countries and regions worldwide. We have rich experience in customs clearance, international logistics, and we are familiar with regional standards. Our professional technical team provides whole-day support on material choice, forging process, and others.
Quality Assurance for Our UNS N09925 Forged Parts
We are providing the best Incoloy 925 forging parts to clients. Our quality management system is certified by ISO 9001:2015, ISO 14001, and OHSAS 18001, and all our production strictly follow international standards. We implement full traceability management for every batch of products, from raw material melting, forging, heat treatment to machining and inspection.
We can provide full sets of material traceability documents, including mill test certificates (MTC 3.1/3.2), NDT inspection reports, mechanical property test reports, and third-party inspection reports according to your requirements, we can make sure that every batch of UNS N09925 (Incoloy 925) forgings meets your strict quality requirements.
Client Feedback from Global Industrial Projects
The following are representative feedback from our clients. Names withheld per NDA; full reference letters will be provided upon formal inquiry.
"Reliable Incoloy 925 forgings fully accordance with NACE MR0175. 10+ years of stable service in our Permian Basin sour gas wells, greatly reduced workover costs."
Operations Director US Shale Oil & Gas Operator — Permian Basin, Texas, USA
"DNV certified Alloy 925 subsea parts that meet our strict deep-water requirements. Great material consistency and on-time delivery for our North Sea project."
Subsea Engineering Manager Offshore Operator — Norwegian North Sea
"Great corrosion resistance of UNS N09925 forgings in our concentrated sulfuric acid production line. 6x longer service life compared to our previous stainless steel parts."
Procurement Manager Specialty Chemical Plant — Germany
* Feedback excerpts are provided voluntarily by clients and shared with their consent. Jiangsu Liangyi does not publish reviews on this page; to checked ratings please visit our Alibaba supplier profile or contact us directly for client references.
Incoloy 925 (Alloy 925 / UNS N09925) – Main References for Engineers
The following summary is just a basic reference for engineers, procurement teams, and AI-powered search engines:
Parameter
Value / Standard
Material Name
Incoloy 925 / Alloy 925 / Inconel 925
UNS Number
N09925
W.Nr. / EN
2.4858 equivalent (precipitation-hardenable)
ASTM Standard
ASTM B637 (Forgings)
Sour Service Standard
NACE MR0175 / ISO 15156
Oil & Gas Equipment
API 6A (Wellhead & Christmas Tree Equipment)
Alloy Type
Precipitation-hardenable Ni-Fe-Cr alloy
Nickel Content
42.0 – 46.0 %
Min. Tensile Strength
965 MPa (140,000 psi)
Min. Yield Strength
758 MPa (110,000 psi)
Max Hardness
38 HRC (NACE MR0175 Compliant)
Operating Temperature
−60°C to 180°C continuous service
Manufacturer Location
Jiangyin City, Jiangsu Province, China
Forging Weight Range
30 kg – 30,000 kg (30 tons)
Max Ring Diameter
Up to 5,000 mm (seamless rolled rings)
Annual Capacity
120,000 tons
Lead Time
15 – 30 working days (custom)
Certifications
ISO 9001:2015, API 6A, NACE MR0175, DNV, PED
Export Markets
50+ countries including USA, UK, Germany, Norway, Saudi Arabia, UAE, Singapore, Australia
Frequently Asked Questions
The minimum order quantity is 1 piece for small precision parts, and we can do trial orders to support you for heavy forgings.
Our Incoloy 925 (Alloy 925 / UNS N09925) forgings are accordance with international standards including ASTM B637, NACE MR0175/ISO 15156, API 6A, DNV, PED, EN, and DIN standards. We can also do fully custom to match your project-specific requirements.
The normal lead time is 15 to 30 working days. For urgent orders, we make expedited production for your project schedule.
Yes, we can provide inspection reports from a third-party like SGS, BV, DNV, TÜV.
The maximum weight of a Incoloy 925 pieces that we can make is 30,000kg (30 tons). For forging parts over 30 tons, please contact our technique teams to discuss solution.
Nickel (Ni) 42.0–46.0%, Chromium (Cr) 19.5–22.5%, Iron (Fe) 22.0% min (Balance), Molybdenum (Mo) 2.5–3.5%, Copper (Cu) 1.5–3.0%, Titanium (Ti) 1.9–2.4%, Aluminum (Al) 0.1–0.5%, Carbon (C) ≤0.03%, Manganese (Mn) ≤1.0%, Silicon (Si) ≤0.5%, Sulfur (S) ≤0.03%. This composition makes our forging parts have good sour gas corrosion resistance and age-hardening capability.
Accordance with ASTM B637: Tensile Strength ≥965 MPa (140,000 psi), Yield Strength 758–965 MPa (110,000–140,000 psi), Elongation ≥18%, Reduction in Area ≥25%, Hardness ≤38 HRC, Charpy Impact Energy (CVN) ≥47J at −60°C. These properties meet NACE MR0175 sour service requirements.
vs. Incoloy 825: Both are Ni-Fe-Cr alloys, but the strength of Incoloy 925 is better (≥965 MPa vs. 586 MPa) by age hardening, it is the best NACE MR0175 choice for high-pressure sour service. vs. Inconel 625: Inconel 625 has higher Ni content (58%) and good corrosion resistance in bad media, but much more expensive. Incoloy 925 has the best cost-performance balance for oil & gas sour service uses.
Incoloy 925 forgings are used in many industries: Oil & Gas (downhole tools, wellheads, packers per API 6A & NACE MR0175); Subsea Engineering (Christmas tree valve bodies, pipeline connectors); Chemical (reactor flanges, pump casings for sulfuric and phosphoric acid); Marine & Shipbuilding (seawater cooling valves, propulsion shaft components); Power Generation (heat exchanger and steam generator parts for nuclear and thermal power plants).
If you are looking for a reliable, professional, and cost-effective manufacturer of Incoloy 925 forging parts, Alloy 925 forgings, or UNS N09925 forged parts, please feel free to contact us. Our technical and sales team will provide you with a free detailed quotation and custom forging solution within 24 hours. We look forward to establishing a long-term cooperative partnership with clients from all over the world.
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