2.4669 (NiCr15Fe7TiAl) Forging Parts | Professional China Manufacturer & Supplier

Why Choose Jiangsu Liangyi for 2.4669 (NiCr15Fe7TiAl) Forgings

Established in 1997 in Jiangyin City, Jiangsu Province — China's most concentrated hub for high-performance alloy metallurgy — Jiangsu Liangyi Co.,Limited has spent over a quarter century developing proprietary forging schedules, heat treatment protocols, and inspection procedures specifically tailored to precipitation-hardenable nickel superalloys including 2.4669 (NiCr15Fe7TiAl). Our 80,000㎡ production facility houses 11 hydraulic open-die presses (ranging from 1,000 to 8,000 tonnes), 6 ring-rolling machines, 12 precision heat treatment furnaces with independent PLC atmosphere control, and a fully equipped in-house metallurgical laboratory — all under one roof in Jiangyin.

Unlike trading companies or material distributors who subcontract forging work, every kilogram of 2.4669 produced under the Jiangsu Liangyi name is melted, forged, heat treated, machined, and inspected by our own engineers and technicians. This end-to-end control is what allows us to provide binding guarantees on grain size, mechanical properties, and full EN 10204 3.1 documentation for each individual forging — not just lot-level certificates.

Our 2.4669 Manufacturing Capacity at a Glance

2.4669 (NiCr15Fe7TiAl) Metallurgy — Why This Alloy Performs Where Others Fail

Most product pages list chemical compositions and mechanical properties without explaining the underlying metallurgical reasons for those properties. We believe that a buyer making a critical material selection decision deserves a deeper understanding. What follows is our engineering team's distillation of 25 years of working with 2.4669 in demanding industrial applications.

The Face-Centred Cubic Matrix and Precipitation Hardening Mechanism

The base structure of 2.4669 is a face-centred cubic (FCC) gamma (γ) matrix, predominantly nickel with chromium and iron in solid solution. This matrix alone would provide only modest strength — similar to a standard austenitic stainless steel. The remarkable mechanical properties of 2.4669 arise from the controlled precipitation of coherent secondary phases within this matrix during aging heat treatment:

• Gamma-prime (γ', Ni₃(Ti,Al)) precipitates: Coherent, ordered L1₂-structure particles, typically 10–50 nm diameter, which form during aging at 620–720°C. Their coherency with the γ matrix creates lattice strain fields that impede dislocation movement — the fundamental mechanism of precipitation hardening. The titanium-to-aluminium ratio in 2.4669 is deliberately calibrated to produce a γ' composition that is thermally stable to approximately 700°C, beyond which the precipitates begin to coarsen and lose their strengthening effect.
• Gamma-double-prime (γ'', Ni₃Nb) precipitates: Body-centred tetragonal (BCT) D0₂₂-structure discs, approximately 5–20 nm diameter, forming preferentially on {001} planes of the γ matrix. These metastable precipitates provide exceptionally strong short-range order hardening. In 2.4669, the niobium content (0.7–1.2 wt%) is lower than in standard Inconel® 718 (5.0–5.5 wt%), which deliberately limits the γ'' volume fraction and shifts the dominant strengthening toward the thermally stable γ' phase — improving long-term elevated temperature performance above 650°C.

The Role of Chromium — Oxidation and Hot Corrosion Resistance

The 14–17 wt% chromium in 2.4669 serves a dual function. First, it forms a continuous, self-healing Cr₂O₃ (chromia) scale on the alloy surface at elevated temperatures, providing excellent resistance to oxidation up to ~900°C in dry air conditions. Second, chromium enhances resistance to Type II hot corrosion — the sulphate-induced corrosion attack that occurs at 650–750°C in gas turbine hot sections where fuel sulphur contaminants react with sodium chloride from inlet air. Both mechanisms are critical for gas turbine and industrial furnace applications where 2.4669 components are routinely specified.

Iron Content — The Cost-Performance Balance

The deliberate inclusion of 5–9 wt% iron in 2.4669 is not a compromise — it is an engineering decision. Iron partially substitutes for nickel in the γ matrix, reducing raw material cost without significantly degrading corrosion resistance or mechanical properties at the intended service temperatures. However, it does limit the alloy's maximum usable temperature relative to cobalt-containing superalloys such as Waspaloy or René 41. Buyers requiring continuous service above 750°C should discuss alternative alloys with our engineering team.

Grain Size Control — The Hidden Quality Factor

In forgings for rotating applications (turbine discs, impellers, compressor wheels), grain size is not merely a quality indicator — it directly governs fatigue initiation resistance and crack growth rate. Our forging process for 2.4669 uses a controlled multi-stage deformation schedule to achieve ASTM 5 to ASTM 8 grain size uniformly through the cross-section, including the centre of heavy sections. Each metallographic report includes grain size measurements at surface, mid-radius, and centre positions, with documented forging reduction ratios for each heat.

Full Range of 2.4669 (NiCr15Fe7TiAl) Forged Products

 We make a full range of custom 2.4669 (NiCr15Fe7TiAl) forged partsin six main product families, with single piece weights ranging from 30 KG to 30,000 KG. All of the products are made exactly to your drawings and technical specifications, and you have complete control over the size, tolerances, surface finish, and testing scope.

Our Proprietary 8-Stage Forging Process for 2.4669 (NiCr15Fe7TiAl)

The forging of 2.4669 presents challenges that do not exist with common carbon or stainless steels: a narrow hot-working temperature window, high flow stress, sensitivity to strain rate, and the need to forge below the gamma-prime solvus to avoid grain growth. Our 8-stage proprietary process, refined over 25+ years, specifically addresses these challenges.

1. Stage 1 — Raw Material Verification: Before any processing, all 2.4669 raw stock (VIM+ESR certified billets or forged blooms from qualified melt suppliers) must pass a 100% incoming inspection. This includes PMI (portable XRF analysis), a hardness survey, a macro-etch examination, and ultrasonic testing according to EN 10228-3. Only materials that have full heat certificates and meet the chemistry requirements of EN 10302 are released for processing.
2. Stage 2 — Billet Conditioning: Billet surface is ground or turned to remove any surface seams, laps, or inclusions that could propagate into the finished forging. Section dimensions are confirmed against the forging plan before heating.
3. Stage 3 — Controlled Furnace Heating: Billets are charged into PLC-controlled gas-fired furnaces and brought to the initial forging temperature of 1,080–1,150°C using a programmed ramp rate of ≤100°C/hour for sections over 200 mm diameter. Soak time is minimum 2 hours per 100 mm of diameter to achieve thorough thermal homogenisation. Atmosphere is controlled to minimise surface oxidation.
4. Stage 4 — First Forging Pass (Breakdown): The primary breakdown forging pass applies a total true strain of ≥0.5 to break up the as-cast or as-rolled dendritic microstructure and close internal porosity. This pass is performed at 1,100–1,150°C to take advantage of maximum workability. The strain rate is controlled to ≤2 s⁻¹ to prevent adiabatic shear banding in this strain-rate-sensitive alloy.
5. Stage 5 — Intermediate Reheating Cycles:  For heavy-section forgings, multiple reheating cycles are applied at 1,050–1,100°C between successive forging passes. This controlled thermal processing keeps the material temperature consistently above the γ' solvus temperature (approximately 990°C), avoiding deformation within the ductility trough and effectively eliminating the risk of surface cracking. The quantity of reheating cycles is defined in the customized forging schedule and fully recorded in official manufacturing records for complete traceability and quality control.
6. Stage 6 — Final Shaping & Precision Forging: Final shape forging passes are performed at 1,000–1,050°C to refine grain size to ASTM 5–8. For rolled rings, the ring rolling operation begins at this temperature, with precise control of radial and axial roll forces to ensure dimensional accuracy and uniform grain flow throughout the ring cross-section.
7. Stage 7 — Two-Stage Precipitation Heat Treatment: Following forging, all 2.4669 components undergo the mandatory two-stage aging cycle: (i) Solution Annealing: 980–1,010°C for 1 hour per 25 mm cross-section thickness, followed by rapid air cool or water quench to dissolve coarse precipitates and restore a supersaturated matrix; (ii) Double Aging: First age at 718–725°C / 8 hours, controlled furnace cool at 55±10°C/hour to 618–622°C, second age 8 hours, then air cool to room temperature. This produces the optimal γ' + γ'' precipitate distribution for the specified mechanical condition (+P980 or +P1170).
8. Stage 8 — Full Inspection, Testing & Certification: Completed forgings undergo the full inspection scope (see Quality Assurance section): UT, MT/PT, dimensional survey, mechanical testing (tensile, hardness, Charpy impact), chemical analysis confirmation, and metallographic examination. All test data is compiled into the EN 10204 3.1 inspection certificate before release.

Production Standards & Compliance for 2.4669 Forgings

Understanding which standard applies to your application — and why — is as important as the standard itself. Here is a precise breakdown of the standards framework governing 2.4669 (NiCr15Fe7TiAl) forging production:

EN 10302:2008 — The Primary Material Standard

Nickel and cobalt alloys, as well as creep-resistant steels, must meet the EN 10302 standard in Europe. It clearly states that 2.4669 (NiCr15Fe7TiAl) is a designated alloy with specific limits on its chemical composition, heat treatment needs, and minimum mechanical properties at high temperatures. This is the main standard that our material certifications for 2.4669 use. It is also the right standard to use for gas turbine, power generation, and high-temperature pressure equipment.

EN 10269:1999 — Elevated and Low-Temperature Fastener Properties

EN 10269 covers steels and nickel alloys with specified elevated and/or low-temperature mechanical properties specifically for fasteners — bolts, studs, nuts, and similar threaded components. When 2.4669 bars or billets are supplied specifically for fastener machining, EN 10269 applies and requires additional low-temperature Charpy impact testing at -196°C in addition to the standard elevated-temperature tensile properties. We supply EN 10269-compliant 2.4669 bar stock with full cryogenic test documentation for nuclear, LNG, and cryogenic valve applications.

EN 10228 — NDT of Steel Forgings

Our ultrasonic testing of 2.4669 forgings is conducted per EN 10228-3 (ultrasonic testing of alloy and stainless steel forgings). For heavy-section components >300 mm diameter, we apply quality class 4 as standard, with class 5 or 6 available on request for aerospace and nuclear applications. Surface NDT (MT or PT) is performed per EN 10228-1 (magnetic particle) or EN 10228-4 (penetrant testing) as appropriate for the geometry.

Compatible North American and International Standards

• ASTM B637: Standard specification for precipitation-hardening nickel alloy bars, forgings, and forging stock — functionally equivalent to 2.4669 for UNS N07718 and similar alloys. Our forgings can be supplied with dual EN 10302 + ASTM B637 certification where required.
• AMS 5663 / AMS 5664: Aerospace Material Specifications for Inconel® 718-type alloys in precipitation-hardened condition. The AMS 5663/5664 heat treatment conditions are technically compatible with EN 10302 double-aging cycles and can be referenced for comparison in customer technical reviews.
• API 6A / API 17D (material requirements): For wellhead and Christmas tree valve components, our 2.4669 forgings are manufactured to meet the material chemical composition, mechanical property, and heat treatment requirements referenced in API 6A and API 17D. API-licensed end product certification is the responsibility of the valve/equipment manufacturer. NACE MR0175/ISO 15156-3 material hardness requirements are met in selected heat treatment conditions.
• ISO 9001:2015: Our quality management system certification covers all phases of 2.4669 production from raw material receipt to final shipment.

Chemical Composition of 2.4669 (NiCr15Fe7TiAl) — Full Element-by-Element Analysis

The table below lists the complete composition ranges per EN 10302:2008. Every heat of 2.4669 we process is independently verified by our in-house spectrometric analysis (OES) and reported in the heat analysis section of the EN 10204 3.1 certificate. We do not ship material based solely on the supplier's mill certificate without independent chemical verification.

Mechanical Properties of 2.4669 (NiCr15Fe7TiAl) Forged Products

The mechanical properties of 2.4669 forgings depend on section size, forging reduction ratio, heat treatment condition, and the specific test position within the forging (longitudinal vs transverse vs short-transverse orientation). The values below represent minimum guaranteed values per EN 10302 for round bar forgings. We provide actual test values — not just "passed/failed" statements — in our EN 10204 3.1 certificates.

Room Temperature Mechanical Properties — 2.4669 Forged Round Bars (EN 10302)

Elevated Temperature Tensile Properties — 2.4669 (Typical Values, Longitudinal)

The following elevated-temperature data represents typical values for optimally aged 2.4669 bar forgings in the +P980 condition. These values are provided for engineering reference — actual certified values are measured and reported per customer request on a batch-by-batch basis.

Physical Properties of 2.4669 (NiCr15Fe7TiAl)

2.4669 vs Competing Alloys — Engineering Selection Guide

Selecting the correct alloy for a demanding application requires understanding not just the data sheet values, but the real-world trade-offs between competing options. Our engineering team regularly assists global buyers with alloy selection — here is our honest assessment of 2.4669 against the most common alternatives.

Corrosion Resistance of 2.4669 (NiCr15Fe7TiAl) — Environment-by-Environment Guide

The corrosion performance of 2.4669 is markedly superior to austenitic stainless steels and carbon steels in most aggressive industrial environments, but there are environments where it is not the optimum choice. Our engineering team provides the following guidance based on documented service experience.

Machining, Welding & Fabrication Guidance for 2.4669 Forgings

2.4669 (NiCr15Fe7TiAl) is significantly more challenging to machine than carbon steel or standard austenitic stainless steel. Buyers who will machine our forgings need to understand these characteristics to achieve the best surface finish, dimensional accuracy, and tool life. Our engineering team is available to provide application-specific machining advice.

Machining Characteristics

Work hardening: 2.4669 work hardens rapidly during cutting — more so than austenitic stainless steels. This is caused by dislocation accumulation in the FCC matrix and the interaction with coherent precipitates. The key mitigation strategies are: (i) maintaining a consistent cutting depth greater than the work-hardened layer from the previous pass; (ii) avoiding rubbing or dwell — always keep the tool advancing; (iii) using cutting fluids liberally to manage heat.

Recommended cutting parameters for turning (aged condition):

• Cutting speed: 15–30 m/min (significantly lower than for 316L SS at 50–80 m/min)
• Feed rate: 0.1–0.25 mm/rev
• Depth of cut: 1.5–4.0 mm (roughing), 0.2–0.8 mm (finishing)
• Tooling: Uncoated or TiAlN-coated submicron cemented carbide (ISO K20–K30); CBN inserts for finishing of fully hardened components
• Cutting fluid: High-pressure (70+ bar) flood coolant (soluble oil); essential for tool life and surface integrity

Grinding: 2.4669 can be surface and cylindrical ground to tight tolerances. Use vitrified aluminium oxide wheels (36–80 grit for roughing, 80–120 for finishing) with soft-to-medium grade. Keep grinding forces low and use abundant coolant to prevent thermal damage to the precipitate microstructure. Grinding burns will locally overage the material and produce tensile residual stresses — always perform Barkhausen noise testing or nital etch inspection after critical grinding operations on fatigue-sensitive components.

Welding of 2.4669 Forgings

2.4669 can be welded using Gas Tungsten Arc Welding (GTAW/TIG), Gas Metal Arc Welding (GMAW/MIG), or Electron Beam Welding (EBW), with the following important considerations:

• Pre-heat: Not required for 2.4669 — in fact, pre-heating above 150°C can promote hydrogen embrittlement in the presence of dissolved hydrogen from welding consumables. Keep interpass temperature ≤150°C.
• Filler metal selection: ERNiCrMo-3 (Alloy 625 filler, over-matching for corrosion resistance) or ERNiFeCr-2 (Alloy 718 filler, matching composition) are the standard choices. Consult AWS A5.14 or EN ISO 18274 for filler classification.
• Post-Weld Heat Treatment (PWHT): Post-weld aging at 718–725°C / 8 hours + 618–622°C / 8 hours (the standard double-aging cycle) is strongly recommended to restore γ' + γ'' precipitation in the weld heat-affected zone, which is depleted during welding. Without PWHT, the HAZ will have significantly lower strength than the parent material.
• Strain-age cracking risk: The risk of strain-age cracking during PWHT is lower in 2.4669 than in higher-γ' alloys (Waspaloy, René 41) because the γ' precipitation kinetics are relatively slow below 750°C. However, for thick section welds (>50 mm), use a slow ramp rate to the aging temperature (≤50°C/hour) to minimise thermal stress during heating.

Surface Treatment

2.4669 components used in high-temperature oxidation environments can benefit from:

• Aluminide diffusion coatings: Pack cementation or chemical vapour deposition aluminide coatings extend oxidation resistance above 900°C for 2.4669 turbine components by converting the surface to a NiAl intermetallic layer that forms a slow-growing Al₂O₃ scale.
• Shot peening: Controlled shot peening of fatigue-critical surfaces (turbine disc bores, fillet radii) introduces compressive residual stresses that significantly extend high-cycle fatigue life. Shot peening of fatigue-critical surfaces can be specified; the peening operation is performed by qualified subcontractors to customer-specified standards.
• Electropolishing: For pharmaceutical, food processing, or nuclear applications requiring ultra-smooth surfaces with minimum crevice corrosion risk, electropolishing can be arranged through qualified subcontractors to ASTM B912 or equivalent.

Quality Assurance & Inspection — What "Full Traceability" Actually Means

Many suppliers claim "full traceability" as a marketing phrase. For Jiangsu Liangyi, it is an engineering commitment that means a specific, documented chain from raw material source to finished part stamp — a chain that any third-party auditor can verify at any point in the supply chain. Here is exactly what our quality system delivers for every 2.4669 forging order.

Our In-House Testing Equipment

• Chemical Analysis: In-house Optical Emission Spectrometer (OES) — simultaneous multi-element analysis covering all EN 10302-required elements including Ni, Cr, Ti, Nb, Al, Fe, C, S, P
• Ultrasonic Testing: Digital phased-array and conventional UT flaw detectors, immersion tank system (for bars and rings) and contact probes; calibrated per EN 10228-3 to quality class 4 standard
• Mechanical Testing: Universal tensile testing machine (600 kN capacity); pendulum impact tester (Charpy 300 J capacity); all instruments calibrated per EN ISO standards and traceable to national standards
• Hardness Testing: Brinell hardness tester (EN ISO 6506-1); Rockwell hardness tester (EN ISO 6508-1); portable Leeb hardness tester for large forgings
• Metallography: Research-grade optical microscope with image analysis system for grain size measurement per ASTM E112 / EN ISO 643; scanning electron microscopy (SEM) available through accredited third-party laboratory
• Dimensional Measurement: Portable coordinate measuring arm (±25 μm accuracy); calibrated inside micrometers; digital height gauges; all instruments calibrated and traceable

EN 10204 3.1 Certificate — Section-by-Section Contents

Our EN 10204 3.1 inspection certificates are generated by our certified QC inspectors and contain the following documented data sections, in the order they appear in the certificate:

• Purchase Order number, item number, drawing number, revision, and technical specification reference (full traceability to customer purchase order)
• Material designation: 2.4669 / NiCr15Fe7TiAl, EN 10302:2008 / EN 10269:1999 as applicable
• Heat number, melt source and cast analysis with all elements per standard
• Product analysis (check analysis on the forging itself by OES), confirming heat analysis within standard limits
• Melting method and manufacturing route summary
• Forging reduction ratio and forging temperature range used
• Complete heat treatment records: solution anneal (temperature × time × quench method), aging cycle (720°C × 8h, cool rate, 620°C × 8h, cool method), furnace chart reference numbers
• Full metallographic examination results: grain size (ASTM number at surface, mid-radius, centre), phase identification, microstructural condition
• Individual tensile test results: specimen ID, gauge length, Rm, Rp0.2, A%, Z%, test temperature
• Individual Charpy impact test results: specimen IDs, test temperatures (room temperature and -196°C), individual KV values and average
• Brinell hardness survey results (minimum 3 readings per forging)
• NDT results: UT (sensitivity level, scanning pattern, indication report), MT or PT (coverage, acceptance criteria, result), RT where applicable
• Complete dimensional inspection report with all critical dimensions as-measured vs drawing tolerance
• Marking description: forging number, heat number, test number, standard, and material designation as stamped on the part
• Declaration of conformity and authorised signatory

Marking & Physical Identification

Every 2.4669 forging is permanently marked by low-stress dot-peen stamping (to avoid stress concentration) on a designated marking area per client drawing. The minimum marking content includes: unique forging number, heat number, test number, material designation (2.4669 / NiCr15Fe7TiAl), applicable standard reference, and Jiangsu Liangyi's manufacturer identification code. Forgings are not released for shipping unless marking has been verified against the certificate by QC inspection.

Industry Applications & Global Project Case Studies

2.4669 (NiCr15Fe7TiAl) forgings are specified in some of the world's most demanding industrial applications. The combination of high strength, creep resistance, cryogenic toughness, and EN 10302 certification makes this alloy the preferred material for engineers working on gas turbines, high-temperature pump and valve systems, subsea oil and gas equipment, and cryogenic processing plants. We have supplied 2.4669 forged components to clients in Germany, France, the United Kingdom, the United States, Canada, Saudi Arabia, the UAE, Australia, South Korea, Japan, and over 50 countries globally.

Additional applications include: heat exchanger tube sheet forgings (combined corrosion resistance + machinability for thousands of tube holes); pressure vessel shell forgings and nozzle forgings (EN 13445-3 / ASME Section VIII); marine propeller shaft and sealing ring forgings (seawater corrosion resistance + fatigue strength); chemical reactor agitator shaft forgings (NACE corrosion resistance + mechanical sealing compatibility); and mining slurry pump shaft and impeller forgings (wear resistance + corrosion resistance in acidic tailings).

How to Specify & Order 2.4669 (NiCr15Fe7TiAl) Forgings — Procurement Guide

Getting the specification right before enquiry is the single most important factor in receiving an accurate quotation and avoiding production delays. Here is a practical guide from our sales engineers on the information we need — and why each piece matters.

Essential Information for a Complete Enquiry

• Material specification: State "2.4669 (NiCr15Fe7TiAl) per EN 10302:2008" for elevated-temperature applications; "per EN 10269:1999" for fastener/cryogenic applications. If you need dual-standard compliance (e.g., EN 10302 + ASTM B637), state both.
• Heat treatment condition: Specify "+P980" (lower strength, better ductility and toughness, preferred for cryogenic and complex geometry) or "+P1170" (higher strength, suitable for compact structural sections). If unsure, ask our engineering team — selecting the wrong condition is a common mistake that cannot be corrected after forging.
• Applicable standards and inspection class: State the NDT standard (e.g., EN 10228-3 quality class 4) and certificate type (EN 10204 3.1 or 3.2 with third-party involvement). If third-party witness inspection is required, name the inspection body and contact in your PO.
• Drawings with full dimensions and tolerances: Provide 2D engineering drawings (DXF/DWG/PDF) and optionally 3D STEP models. Include surface finish requirements (Ra values) on all critical surfaces. State the machining allowance required if we supply rough forgings for your subsequent machining.
• Quantity and delivery requirements: State quantity per order, any phased delivery schedule, and your required dock date. For project-critical deliveries, inform us as early as possible — lead time can be compressed to 7–14 days in genuine emergencies with advance notice and coordination.
• Special requirements: Any NACE compliance requirements (state specific well environment parameters); any nuclear classification (ASME Level A/B/C/D, RCC-M, KTA); any witness inspection hold points; any customer-specific material qualification requirements (such as first-article inspection or material qualification test programmes).

Our Quotation and Order Process Timeline

• Hour 0 — Enquiry received: Enquiries sent to sales@jnmtforgedparts.com or via WhatsApp (+86-13585067993) are assigned to a dedicated sales engineer within 2 hours during working hours.
• Hours 4–24 — Technical review: Our engineering team reviews your drawings, confirms our manufacturing capability, checks raw material stock or lead time for billet procurement, and prepares a formal technical proposal.
• Within 24 hours — Quotation issued: You will get a formal written quotation including unit price, total price, lead time, applicable standards, certificate type, and commercial terms (Incoterms, payment terms, packing specification).
• PO receipt → Production start: Upon receipt of signed purchase order and confirmation of technical specification, a dedicated Inspection Test Plan (ITP) and production schedule are issued within 48 hours. Production begins immediately upon raw material availability.
• Days 5–25 — Production and testing: Progressive milestones are available including forging completion, heat treatment completion, and NDT/mechanical test results, shared proactively via email without waiting for you to ask.
• Days 15–30 — Shipment: Completed, inspected, certified, and marked forgings are shipped by air freight (for urgent orders), sea freight (LCL or FCL), or express courier depending on weight and delivery urgency.

Frequently Asked Questions — 2.4669 (NiCr15Fe7TiAl) Forgings

Related Products & Alternative Alloy Grades

As a full-spectrum nickel superalloy forging manufacturer with over 25 years of experience, Jiangsu Liangyi produces the complete range of high-performance alloy forgings. If 2.4669 does not fully meet your technical requirements — whether you need higher temperature capability, better corrosion resistance, or different mechanical property balance — our engineering team can recommend and produce the following alternatives:

• 2.4668 (Inconel® 718 / NiCr19Fe19Nb5Mo3) — Higher strength to 650°C, more widely specified in aerospace structural applications. View our nickel alloy forging materials page.
• 2.4654 (Waspaloy / NiCo13Cr19Mo4Ti3) — Superior creep resistance to 760°C for the most demanding aeroengine hot-section applications.
• 2.4819 (Hastelloy® C-276) — Maximum corrosion resistance in HF, wet Cl₂, and reducing acid environments where 2.4669 is not adequate.
• 2.4360 (Monel® 400) — Cost-effective nickel-copper alloy for seawater service and HF acid applications at moderate temperatures.
• Stainless steel forgings — A182 F316L, F317L, F904L, 2205 duplex, 2507 superduplex for lower-cost corrosion-resistant applications.

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