2.4708(NiMo22Cr15) Forging Parts | China Professional ISO 9001:2015 Certified Manufacturer
Product Overview of 2.4708(NiMo22Cr15) Forged Steel
Jiangsu Liangyi Co., Limited was founded in 1997 ,located in Jiangyin, Jiangsu Province, a core cluster for China’s forging industry.We are an ISO 9001:2015 certified manufacturer focused on custom open die forgings and seamless rolled rings in 2.4708 (NiMo22Cr15).
With more than 25 years of professional forging experience, we have delivered high-performance NiMo22Cr15 forged parts to over 50 countries around the world, including the United States, Germany, France, the United Arab Emirates, Saudi Arabia, Australia, Japan, the United Kingdom, the Netherlands, Italy, Spain, Canada, Brazil, Russia, and India.
Our modern manufacturing site covers 80,000 square meters and is equipped with advanced melting, forging, heat treatment, and CNC machining equipment. This allows us to offer full one-stop service from raw material melting to finished product delivery.
All our 2.4708 forgings meet strict international standards including DIN, EN, ASTM, API, and AMS. We provide full EN 10204 3.1/3.2 material test certificates to make sure all parts have complete traceability and reliable quality.
Our Core Manufacturing Advantages for 2.4708(NiMo22Cr15) Forgings
Full In-House Production Chain
Complete steelmaking-forging-heat treatment-machining process integration with no outsourcing, making sure the quality is fully controlled, lead time is shorter , and the price is more competitive for your 2.4708 alloy parts.
Heavy-Duty Forging Capacity
6300T hydraulic forging press and 5M seamless rolling machine, supporting single-piece weight up to 30 tons and ring diameter up to 6 meters for large-scale NiMo22Cr15 superalloy forgings.
Comprehensive Quality Testing
Full range of NDT, chemical composition, mechanical property, and metallographical testing equipment, with 100% inspection before delivery for all 2.4708 DIN EN forgings.
Global Export Expertise
More than 25 years of international export experience, with in-depth knowledge of import regulations, industry standards, and documentation requirements for North America, Europe, Middle East, and Asia-Pacific markets.
Custom Forged Product Shapes & Detailed Specifications of 2.4708(NiMo22Cr15)
We make a full range of 2.4708(NiMo22Cr15) forging steel products in custom shapes and dimensions based on clients drawings and technical specifications:
- 2.4708 Forged Bars: Round bars, square bars, flat bars, rectangular bars, and hollow bars with maximum diameter up to 2000mm, maximum length up to 15000mm, and weight range from 30kg to 30,000kg
- NiMo22Cr15 Seamless Rolled Rings: Gear rings, slewing bearing rings, contoured rings, and custom forged rings with maximum outer diameter up to 6000mm, maximum height up to 1000mm, and weight up to 30 tons
- 2.4708 Forged Shafts: Step shafts, gear shafts, turbine shafts, crankshafts, and custom shafts with maximum diameter up to 1800mm, maximum length up to 15000mm, and 100% UT testing
- NiMo22Cr15 Forged Parts: Housings, shells, sleeves, bushes, discs, plates, flanges, valve bodies, bonnets, and custom engineered parts
- 2.4708 Hollow Forgings: Heavy wall cylinders, pipes, tubes, and hollow bars with outer diameter up to 3000mm and wall thickness ranging from 50mm to 500mm
All 2.4708(NiMo22Cr15) products can be provided with CNC machining, surface treatment, and third-party inspection services (SGS, BV, TÜV) as required. We also offer customizable production scheduling to meet urgent delivery requirements for important projects in the Middle East, Europe, and North America.
Chemical Composition & Mechanical Properties of 2.4708(NiMo22Cr15)
2.4708(NiMo22Cr15) is a high-performance nickel-molybdenum-chromium superalloy. It has excellent resistance to reducing acids, pitting, crevice corrosion, and stress corrosion cracking.
This alloy keeps strong mechanical properties and stable matrix at extreme temperatures from -253°C for cryogenic use up to 450°C for high-temperature service.It is the best choice material for important parts in the extreme industrial conditions.
Standard Chemical Composition of 2.4708(NiMo22Cr15) (DIN EN 2.4708)
| Element | Content Range | Element | Content Range |
|---|---|---|---|
| Carbon (C) | ≤ 0.010% | Chromium (Cr) | 13.8% - 15.6% |
| Manganese (Mn) | ≤ 0.60% | Molybdenum (Mo) | 21.5% - 23.0% |
| Silicon (Si) | ≤ 0.08% | Aluminum (Al) | ≤ 0.50% |
| Phosphorus (P) | ≤ 0.025% | Iron (Fe) | ≤ 1.25% |
| Sulfur (S) | ≤ 0.010% | Nickel (Ni) | Balance |
Heat-Treated Mechanical Properties of 2.4708(NiMo22Cr15) Forgings
All our 2.4708(NiMo22Cr15) forged parts are given solution annealing and quenching heat treatment processes to make sure all of them have improved mechanical properties and corrosion resistance:
- Yield Strength (Rp0.2): ≥ 310 MPa
- Tensile Strength (Rm): ≥ 725 MPa
- Elongation (A5): ≥ 40%
- Hardness: 180-240 HB
- Impact Toughness (KV): ≥ 150 J at room temperature
- Reduction of Area (Z): ≥ 50%
We also offer customized heat treatment to meet specific project needs for different applications.These include cryogenic service for LNG projects in Australia and high-pressure, high-temperature (HPHT) service for oil and gas projects in the Middle East.
Forming & Manufacturing Process of 2.4708(NiMo22Cr15) Forgings
2.4708(NiMo22Cr15) has good formability in both warm and cold conditions, and cold forming is the preferred method for thin-walled parts.For hot forming, we strictly control the temperature between 1230°C and 954°C, and quickly pass through the sensitive range of 593°C to 816°C to avoid grain-boundary precipitation and possible loss of material properties.
For melting, all 2.4708 (NiMo22Cr15) alloy is produced using our in‑house 30t electric arc furnace (EAF), 30t ladle refining furnace (LF), and vacuum degassing furnace (VOD).We also use multiple melting processes such as vacuum induction melting (VIM) and consumable electrode remelting (VAR) to ensure extremely high purity, uniform chemistry, and consistent quality — essential for nuclear power, aerospace, and other high‑reliability applications.
We provide a full range of manufacturing processes for 2.4708 forgings from raw material inspection ,steelmaking,ingot casting ,homogenization , forging, rough machining ,heat treatment, finish machining, NDT testing, dimension test, protective coating to packaging and delivery.Every step is fully documented and controlled to make sure each part is completely traceable.
2.4708(NiMo22Cr15) Global Standards Cross-Reference: What Your Country Calls This Alloy
A common issue we see repeatedly:A procurement engineer in Houston searches for UNS N10276, their colleague in Tokyo looks for NCF 276, and a buyer in Düsseldorf searches for 2.4819 — none realizing they are referring to the same alloy family.
2.4708 (NiMo22Cr15) belongs to the same Ni‑Mo‑Cr system, but has its own specific DIN EN designation with a stricter chemical composition range. Main differences include a maximum iron limit of ≤1.25% and a narrower molybdenum range of 21.5–23.0%.
The table below is based on actual factory certificates from our 25 years of exports, not standard textbook data.
| Standard System | Designation | Country / Region | Key Difference vs 2.4708 | Our Certification Coverage |
|---|---|---|---|---|
| DIN EN | 2.4708 / NiMo22Cr15 | Germany, EU | This is the defining standard — strictest Fe ≤ 1.25% | ✅ EN 10204 3.1 / 3.2 standard |
| UNS | UNS N10276 (Ni-Mo-Cr alloy, commonly known as C-276 type) | USA, Canada | UNS N10276 allows Fe up to 5%; 2.4708 is purer | ✅ Dual cert available on request |
| ASTM / ASME | B564, B462, B472 (forgings) | USA, Canada, International | Specifies product form, not alloy — use with UNS N10276 | ✅ Full ASTM MTC issued for North America |
| BS | NA 13 | United Kingdom | Legacy designation, largely superseded by EN in UK | ✅ Available upon request for UK buyers |
| JIS | NCF 276 | Japan | Virtually identical composition; JIS NCF 276 accepted for most Japanese engineering projects | ✅ JIS-aligned certs for Japanese clients |
| GOST | ХН65МВУ (approximate) | Russia, CIS | Contains tungsten addition — not a direct equivalent; specify 2.4708 explicitly | ⚠️ Consult our engineers for CIS projects |
| GB / YB | NS334 (approximate) | China domestic | Chinese domestic standard; our export forgings always carry DIN EN cert | ✅ DIN EN cert for all export orders |
| ISO | ISO 9722 NW 0276 | International | ISO designation aligned with UNS N10276 chemistry | ✅ Referenced in our quality documentation |
Practical note from our engineering team: If your RFQ only says "C-276 equivalent," we will first confirm which standard your project follows before providing a quote.The difference in iron content between 2.4708 (Fe ≤ 1.25%) and UNS N10276 (Fe ≤ 5%) can be important in nuclear and cryogenic applications.Some customers have found this issue during TÜV audits, so we prefer to identify it early at the inquiry stage.
2.4708(NiMo22Cr15) Corrosion Resistance: Real Performance Data, Not Marketing Claims
All alloy datasheets claim "excellent corrosion resistance."With over 25 years supplying 2.4708 (NiMo22Cr15) forgings to chemical plants, acid-service pipelines, and nuclear facilities in more than 50 countries, we have collected real-world service feedback that goes beyond standard datasheets.
The table below shows corrosion environment data validated by our customers in actual use — including some conditions where 2.4708 is not suitable.We include these cases to be transparent, because this is how we build long-term supply partnerships.
| Corrosive Medium | Concentration / Condition | Temperature | Corrosion Rate | Performance Rating | Typical Application |
|---|---|---|---|---|---|
| Hydrochloric Acid (HCl) | 1% – 20% concentration | 20°C – 80°C | < 0.1 mm/year | 🟢 Excellent | HCl synthesis, pickling equipment valve bodies |
| Hydrochloric Acid (HCl) | 20% – 37% (concentrated) | Boiling point | 0.1 – 0.5 mm/year | 🟡 Good — monitor regularly | Chlorine gas absorption towers |
| Sulfuric Acid (H₂SO₄) | 10% – 60% | 20°C – 60°C | < 0.13 mm/year | 🟢 Excellent | Phosphate fertilizer reactors, forged pump casings |
| Sulfuric Acid (H₂SO₄) | > 80% (oleum range) | > 60°C | 1.0 – 3.0 mm/year | 🔴 Not recommended | Use 2.4610 (NiMo16Cr15W) instead for oleum service |
| Phosphoric Acid (H₃PO₄) | Up to 85% | Up to 100°C | < 0.05 mm/year | 🟢 Excellent | Wet process phosphoric acid, heat exchanger tube sheets |
| Acetic Acid (CH₃COOH) | All concentrations including glacial | Up to boiling | < 0.025 mm/year | 🟢 Outstanding | Acetic acid distillation columns, forged flanges |
| Seawater / Chloride Solution | Natural seawater, 3.5% NaCl | Ambient to 60°C | No measurable pitting in 3-year immersion tests | 🟢 Excellent — pitting resistant | Subsea wellhead components, desalination pump shafts |
| Sour Gas (H₂S + CO₂) | NACE MR0175 sour service | Up to 200°C, 15,000 psi | No stress corrosion cracking in NACE testing | 🟢 Meets NACE MR0175 material requirements | Downhole wellhead tools, casing heads (Middle East projects) |
| Nitric Acid (HNO₃) | > 30% (oxidizing environment) | > 50°C | 1.0 – 5.0 mm/year | 🔴 Not suitable | Use 2.4060 (Alloy 690) or 316L for nitric acid service |
| Mixed Acid (HF + HNO₃) | Pickling bath concentrations | Ambient | < 0.5 mm/year | 🟡 Acceptable — verify HF concentration | Uranium processing, semiconductor pickling |
Why we include the "Not recommended" rows: Most manufacturers choose not to mention conditions where 2.4708 doesn’t perform well — but we don’t hide them.A part failure in a 15,000 psi sour gas application is far more costly than an honest discussion during the RFQ process.
If your service environment falls in a red or yellow zone, our engineers will recommend the right alloy, and we can supply that material instead.
Material Selection Guide: When to Choose 2.4708(NiMo22Cr15) Over Competing Alloys
The most common question our international sales team gets isn’t “what are the specs of 2.4708?” — buyers can find that on any datasheet.The real question is: “Given my project conditions, should I use 2.4708 or another material?”
With 25 years of engineering support for projects in the North Sea, Arabian Gulf, Gulf of Mexico, and nuclear plants across France, we’ve simplified our material selection logic into the guide below.This is how our engineers evaluate every RFQ.
- Your medium is reducing acids (HCl, H₂SO₄ <60%, H₃PO₄) — this is where 2.4708's high molybdenum (22%) delivers maximum value over cheaper alternatives
- If your project needs NACE MR0175 sour service compliance for H₂S-containing environments,2.4708 easily passes NACE HIC and SSC testing — performance that 316L and 2205 duplex stainless steel cannot match at elevated temperatures.
- Your project needs cryogenic impact toughness at –196°C — nuclear and LNG applications where Charpy values at extreme low temperatures are mandatory
- You need pitting resistance in chloride-rich seawater — PREN value > 65, far above duplex steels (PREN ~35–40)
- Your specification demands Fe ≤ 1.25% or nuclear-grade material purity (VAR/VIM melting route required)
- Mixed acid service where the medium alternates between oxidizing and reducing conditions
- Strong oxidizing acids (concentrated HNO₃ >30%) — choose Alloy 690 (2.4642) or 316L instead; 2.4708's high Mo actually accelerates attack in pure oxidizing media
- Temperature >450°C continuous service — 2.4708 can suffer sigma-phase embrittlement; consider Alloy 625 (2.4856) for high-temperature oxidizing environments
- Budget is the primary driver and conditions are mild — 316L or 2205 duplex at 15–20% of 2.4708's cost may be adequate for low-chloride, low-acid applications
- High-velocity erosion-corrosion is the dominant failure mode — cobalt-based hard alloys or tungsten carbide-lined parts may outperform any nickel alloy
Side-by-Side Comparison: 2.4708 vs. Frequently Specified Alternatives
This comparison shows typical performance in the most common environments our clients work with.The values are relative performance ratings based on published corrosion research and 25 years of field experience from our global customers.This is meant only as a practical material selection guide and does not represent certified test data or official approval from any standards organization.
| Property / Criterion | 2.4708 NiMo22Cr15 | 2.4819 NiMo16Cr15W (C-276) | 2.4856 NiCr22Mo9Nb (625) | 2205 Duplex | 316L Stainless |
|---|---|---|---|---|---|
| Resistance to HCl (all concentrations) | 97 / Excellent | 92 / Excellent | 75 / Good | 45 / Limited | 20 / Poor |
| Resistance to H₂SO₄ (10–60%) | 94 / Excellent | 90 / Excellent | 72 / Good | 50 / Moderate | 30 / Limited |
| Pitting resistance (chloride/seawater) | 98 / Outstanding | 96 / Outstanding | 88 / Excellent | 60 / Moderate | 30 / Limited |
| Cryogenic toughness (–196°C) | 95 / Excellent | 90 / Excellent | 92 / Excellent | 55 / Limited | 70 / Good |
| High-temp oxidizing resistance (>400°C) | 55 / Moderate | 65 / Good | 90 / Excellent | 72 / Good | 60 / Moderate |
| NACE MR0175 sour service compliance | ✅ Fully compliant | ✅ Fully compliant | ✅ Fully compliant | ⚠️ Grade-dependent | ❌ Not suitable |
| Nuclear-grade purity (VAR/VIM available) | ✅ Yes (Fe ≤ 1.25%) | ⚠️ Fe allows up to 5% | ✅ Yes | ❌ Not applicable | ❌ Not applicable |
| Forgeability (large cross-section) | 92 / Excellent | 88 / Excellent | 80 / Good | 85 / Good | 95 / Excellent |
| Relative material cost index | 100 (baseline) | 105–115 | 120–140 | 25–35 | 10–15 |
Reading this table: 2.4708 fills a specific performance role: excellent resistance to reducing acids, plus nuclear‑grade low iron purity, at a moderate extra cost compared to standard C‑276.
If your project does not need Fe ≤ 1.25% or nuclear‑grade traceability, 2.4819 (standard C‑276 UNS N10276) can provide similar corrosion performance at a lower cost.
Our engineering team will give honest advice — we supply both alloys.
2.4708 (NiMo22Cr15) forgings are used in the world’s most important industries,because they have excellent corrosion resistance, good formability, and stable mechanical properties.We have extensive experience in providing custom forging solutions that match specific regional market demands and industry requirements.
Core Industry Applications of 2.4708(NiMo22Cr15)
- Oil & Gas Industry: Wellhead equipment, casing heads, tubing hangers, valve bodies, bonnets, stems, downhole drilling tools, ESP motor shafts, and subsea parts for onshore and offshore projects
- Nuclear Power Industry: Reactor coolant pump parts, impellers, casings, containment seal chambers, control rod drive mechanisms, and other critical safety-related parts.
- Chemical & Petrochemical Industry: Reaction vessels, heat exchangers, pressure vessels, piping systems, pump casings, impellers, and other equipment for corrosive chemical processing
- Valve Industry: High-performance ball valves, check valves, gate valves, butterfly valves, and cryogenic valves for LNG terminals, chemical plants, and pipeline systems
- Marine & Offshore Industry: Subsea equipment, seawater desalination parts, offshore platform structures, and marine propulsion system parts.
- Power Generation Industry: Turbine parts, generator parts, and other critical equipment for thermal power plants, hydroelectric facilities, and renewable energy projects
GEO-Specific Verified Application Cases
Middle East Oil & Gas Project (Saudi Arabia & United Arab Emirates)
Since 2020, we have supplied more than 80 complete sets of custom 2.4708 (NiMo22Cr15) forged wellhead parts for major onshore and offshore oil and gas projects in Saudi Arabia and the UAE.These include casing heads, tubing hangers, valve bodies, and drive shafts for downhole drilling tools. These critical parts are used for harsh downhole conditions: high levels of H₂S and CO₂, extreme pressures up to 15,000 psi, and temperatures up to 200°C.All parts are made to meet API 6A technical requirements.Upon customer request, we can arrange independent third‑party inspection by Bureau Veritas (BV), SGS, or other certified inspection organizations.
European Nuclear Power Project (France & Germany)
Our 2.4708 (NiMo22Cr15) forged reactor coolant pump casings and impellers have been supplied to pressurized water reactor (PWR) nuclear power plant projects in France and Germany. These safety-related parts are produced with 100% volumetric ultrasonic testing, full material traceability from raw material melting through final delivery, and complete quality documentation packages prepared per RCC-M and KTA nuclear industry requirements. Specific nuclear qualification and third-party verification arrangements are confirmed with the customer’s designated inspection authority.
North American Chemical Industry Project (United States & Canada)
We make custom 2.4708 (NiMo22Cr15) forged reaction vessels, heat exchanger tube sheets, pressure vessel nozzles, and piping parts for parts in the US and Canada that make sulfuric acid, hydrochloric acid, and other very corrosive chemicals.These NiMo22Cr15 parts have far better corrosion resistance than conventional stainless steels and other nickel alloys, extending equipment service life by 3 to 5 times while greatly cutting maintenance costs and downtime for our North American customers.
Australian LNG Project (Western Australia & Queensland)
We supplied 2.4708 (NiMo22Cr15) forged valve parts and cryogenic piping parts for major LNG export projects in Western Australia and Queensland.These specialized parts are used for cryogenic service down to -196°C, and they had excellent Charpy V‑notch impact toughness and dimensional stability at extreme low temperatures.All parts passed strict cryogenic impact testing at -196°C and have operated reliably with no issues since 2021.
Quality Control & Certification Standards of 2.4708(NiMo22Cr15) Forgings
Quality is the foundation of our business and the main reason for our success over the past 25 years.We maintain a strict ISO 9001:2015 quality management system across the entire production process, from incoming raw material inspection to final product packaging and delivery.
Our dedicated quality control team performs full testing and inspection at every manufacturing stage, making sure all 2.4708 (NiMo22Cr15) forgings meet or exceed customer requirements and international quality standards.
After all heat treatments are completed, we perform mandatory non-destructive testing (NDT) on all forged parts:
- 100% Visual Inspection of all surfaces for any defects
- 100% Ultrasonic Testing (UT) according to SEP 1923, quality class 2b standards
- Magnetic Particle Testing (MT) and Liquid Penetrant Testing (PT) for surface and near-surface defect detection
- Radiographic Testing (RT) is available upon customer request for important safety parts
- Hardness testing, tensile testing, impact testing, and metallographic examination as needed.
All 2.4708(NiMo22Cr15) forged parts come with an EN 10204 3.1 Inspection Certificate as standard.This document includes full purchase order details, material designation, heat number, complete chemical analysis, melting process, manufacturing route, heat treatment records, mechanical test results, NDT reports, and dimension test data.
EN 10204 3.2 certificates with independent third‑party verification are also available upon customer request.
Custom Forging Process & Delivery Information
Our Custom Forging Process
- Inquiry & Quotation: Send us your detailed drawings, material specifications, quantity requirements, and delivery timeline, and we will provide a full technical and commercial quotation within 24 hours
- Technical Review: Our experienced engineering team will review your drawings and provide professional technical suggestions to optimize the design for manufacturability and cost-effectiveness
- Sample Production: We can produce samples for testing, validation, and customer approval before proceeding with full mass production
- Mass Production: We will carefully plan and schedule production according to the agreed timeline, and keep you regularly updated on production progress
- Inspection & Delivery: All parts are given rigorous final inspection before protective packaging and delivery to your specified location
Delivery & Logistics Information
- Standard Lead Time: It is 3-4 weeks for small orders, 6-8 weeks for large production orders
- Urgent Delivery: We can speed up production for urgent orders, with lead time shortened to 2 weeks .
- Shipping Ports: They are Shanghai, Ningbo, and Qingdao (major international ports in China)
- Shipping Methods: Sea freight (FCL/LCL), air freight, and express delivery (DHL, FedEx, UPS, TNT)
- Packaging: Use standard export wooden cases with full anti-rust treatment and secure packaging to make sure transportation is safe.
We maintain long-term partnerships with leading international shipping lines and freight forwarders, enabling us to offer competitive freight rates and dependable delivery to all major ports around the world.We can also arrange door-to-door delivery directly to your facility if needed, along with full logistics support including customs documentation and clearance assistance.
Frequently Asked Questions (FAQ) About 2.4708(NiMo22Cr15) Forgings
Inquiry & Contact Information
Jiangsu Liangyi Co., Limited is your trusted China-based manufacturer of high-quality 2.4708 (NiMo22Cr15) forged parts.Whether you need standard forged bars and rings or custom parts, we will provide the high quality products to meet your need.Please send us your detailed custom drawings, material specifications, order quantity, and required delivery schedule for an accurate and competitive quotation.Our dedicated international sales team will reply to your inquiry within 24 hours
Tel: +86-510-86107550
Fax: +86-510-86107550
Website: https://www.jnmtforgedparts.com
Address: Chengchang Industry Park, Jiangyin City, Jiangsu Province, China