What is 2.4880 (NiCo29Cr28Si) alloy and what are its equivalent designations?

2.4880, also designated NiCo29Cr28Si per DIN/EN standard, is a solid-solution-strengthened nickel-cobalt-chromium-silicon superalloy. Its international equivalents include: Nicrofer® 3228 SiCo (VDM Metals GmbH trade name), and W.Nr. 2.4880 / DIN 17744 NiCo29Cr28Si in Germany. It is engineered for extreme high-temperature corrosive environments with a maximum continuous service temperature of 1204°C (2200°F).

What are the main applications of 2.4880 (NiCo29Cr28Si) forging parts?

2.4880 NiCo29Cr28Si forging parts are primarily used in: (1) Power generation and gas/steam turbines—blades, discs, casings, seal rings; (2) Petrochemical and oil & gas processing—heat exchangers, pressure vessels, valve bodies, tube sheets; (3) Nuclear power plants—steam generator components, reactor nozzles, pressurizer surge line tubes; (4) Waste incineration and environmental protection—thermocouple protection tubes, reactor components handling corrosive flue gases.

2.4880 (NiCo29Cr28Si) Forging Parts | China Professional Open Die Forging Manufacturer

Name: Jiangsu Liangyi Co., Limited – LIANGYI FORGING
Address: Chengchang Industry Park, Jiangyin City, Jiangsu Province, 214400, CN
Telephone: +86-13585067993
Price range: $$

Quick Reference: 2.4880 (NiCo29Cr28Si) Forging Parts

W.Nr. / DIN: 2.4880 / NiCo29Cr28Si

VDM Brand: Nicrofer 3228 SiCo

Max Service Temp: 1204°C (2200°F)

Density: 8.19 g/cm³

Elastic Modulus: 202 GPa (20°C)

Tensile Strength: ≥ 724 MPa

Yield Strength: ≥ 321 MPa

Elongation: ≥ 66%

Max Ring OD: 6000 mm / 30 tons

Max Bar OD: 2000 mm

Melting Process: VIM/ESR or VIM/VAR

Certificate: EN 10204 3.1 / 3.2 MTC

Standards: ASTM, DIN 17744, EN

Factory: ISO 9001:2015 Certified

Jiangsu Liangyi (established 1997) is an ISO 9001:2015 certified, China-based professional manufacturer of 2.4880 (NiCo29Cr28Si) open die forging parts and seamless rolled forged rings, with more than 25 years of experience in delivering high-performance nickel-cobalt-chromium alloy forgings for globally important industrial applications. Our 2.4880 NiCo29Cr28Si forgings are made to meet ASTM, DIN 17744 and EN international material standards, with complete EN 10204 3.1/3.2 mill test certificates for full traceability.

2.4880 International Equivalent Grades & Cross-Reference Chart

Engineers and procurement teams around the world use different national designations for the same alloy. The table below gives the full international cross‑reference for 2.4880 (NiCo29Cr28Si), so you can confirm material equivalence no matter which standard your drawing or specification uses. All equivalent grades in this table have the same nominal Ni‑Co‑Cr‑Si chemistry and are interchangeable for the same high‑temperature corrosion‑resistant applications.

Standard / Origin	Designation	Standard Number	Notes
Germany (DIN / EN)	2.4880 / NiCo29Cr28Si	DIN 17744 / W.Nr. 2.4880	Primary designation used in Europe and China export documentation
USA (UNS)	N06333	ASTM B564, ASTM B472	The precise ASTM metallurgical identifier for this alloy in North American standards; referenced in ASTM B564 and related specifications
VDM Metals (Trade Name)	Nicrofer® 3228 SiCo	VDM Metals GmbH Data Sheet	Registered trade name of VDM Metals GmbH for W.Nr. 2.4880; widely referenced in European procurement specifications. Nicrofer® is a registered trademark of VDM Metals GmbH.
International (ISO)	NiCo29Cr28Si	ISO 6208 / EN ISO 9723	ISO compositional designation; commonly used in technical datasheets and engineering drawings
VdTÜV (Germany)	NiCo29Cr28Si	VdTÜV-Werkstoffblatt 432	German pressure vessel and power plant equipment standard; mandatory for EU power generation procurement in many cases

Ordering note: When placing an enquiry with our team, any of the following designations are accepted and will be cross-referenced to confirm equivalency: 2.4880NiCo29Cr28SiDIN 17744

2.4880 (NiCo29Cr28Si) Forged Product Forms & Available Size Range

2.4880 NiCo29Cr28Si forged round bars manufactured by Jiangsu Liangyi China

We supply a full range of custom 2.4880 NiCo29Cr28Si forging products in all kinds of shapes and sizes, with single-piece weight capacity from 30 kg up to 30 tons, fully machined based on your exact drawings and technical specifications. The consolidated size range table below covers all available product forms in one place — use it as your quick dimensional reference during the engineering and procurement stages.

Consolidated Forging Size Range — 2.4880 (NiCo29Cr28Si)

Product Form	Max OD / Section	Min OD / Section	Max Length / Height	Weight Range	Typical Applications
Forged Round Bars	Ø 2000 mm	Ø 50 mm	6000 mm	30 kg – 15 tons	Turbine blades, valve stems, fasteners, shaft blanks
Flat / Square / Rectangular Bars	1500 × 800 mm	50 × 20 mm	5000 mm	30 kg – 12 tons	Turbine blade blanks, spacers, structural parts
Seamless Rolled Forged Rings	Ø 6000 mm OD	Ø 200 mm OD	Height 2000 mm	50 kg – 30 tons	Turbine casings, gear rings, seal rings, bearing races, labyrinth rings
Hollow Forgings / Sleeves / Bushes	Ø 3000 mm OD	Ø 80 mm OD	3000 mm	30 kg – 20 tons	Heat exchanger shells, reactor liners, heavy-wall cylinders, pressure vessel nozzles
Discs / Disks / Hubs	Ø 3000 mm	Ø 100 mm	Thickness 800 mm	50 kg – 25 tons	Turbine discs, impellers, rotor disks, pump hubs, nuclear closure heads
Tube Sheets & Baffle Plates	3000 × 2000 mm	200 × 200 mm	Thickness 300 mm	50 kg – 15 tons	Shell-and-tube heat exchangers, reactors, condensers for chemical and petrochemical
Step Shafts / Step Rods	Max section Ø 1200 mm	Min section Ø 30 mm	4000 mm	30 kg – 10 tons	Valve spindles, pump shafts, actuator rods, rotor shafts
Custom-Shape Forgings	Per customer drawing — weight up to 30 tons per piece; all profiles available				Flanges, valve bodies, nozzles, housings, thermocouple protection tubes

All dimensions listed above are maximum single-piece capabilities of our 6300T hydraulic forging press and 5-meter seamless rolling mill. For parts that exceed a single standard dimension, we offer combined forging and rough-machining solutions to deliver near-net-shape blanks. Contact our engineering team with your drawing for a feasibility review and lead time estimate.

2.4880 NiCo29Cr28Si Forged Bars & Rods

We manufacture forged round bars, square bars, flat bars, rectangular bars and step rods in 2.4880 alloy, with maximum diameter up to 2000 mm. These bars are widely used for turbine blades, fasteners, valve stems and other high-temperature structural parts, with consistent fine-grained internal matrix guaranteed via precise hot working process.

NiCo29Cr28Si Seamless Rolled Forged Rings

Our custom seamless rolled forged rings in 2.4880 NiCo29Cr28Si alloy reach up to 6000 mm in outer diameter, with weight capacity up to 30 tons. We supply gear rings, bearing races, seal rings, turbine casing rings, labyrinth rings and contoured rolled rings for rotating and pressure equipment, with full UT inspection per EN 10228-3 standard.

2.4880 Alloy Hollow Forgings & Pressure Components

We produce seamless 2.4880 forged sleeves, bushes, hollow bars, heavy-wall cylinders, pipe tubes, tubing shells and casings, with outer diameter up to 3000 mm. These parts are the best choice material for heat exchangers, pressure vessels, reactors, boilers and chemical processing equipment, with exceptional resistance to high-temperature corrosive media.

Custom NiCo29Cr28Si Forged Components

We also supply custom 2.4880 forged discs, disks, blocks, plates, hubs, housings, valve bodies, tube sheets, baffle plates, flanges and other intricate-shaped forgings, they are made to fully meet your custom drawings and application requirements.

Material Properties & Performance Advantages of 2.4880 (NiCo29Cr28Si) Alloy

2.4880 (NiCo29Cr28Si) is a solid-solution-strengthened nickel-cobalt-chromium-silicon superalloy, and it is used for extreme high-temperature corrosive environments that conventional stainless steels and even standard nickel alloys cannot withstand. Following are its main performance advantages :

Industry-leading resistance to sulfidation and chloride-induced corrosion in both reducing and oxidizing atmospheres, even at extreme temperatures
Excellent resistance to oxidation, hot corrosion, carburization, metal dusting, nitridation and corrosion attack from low-melting-point compounds formed by phosphorus, vanadium, sodium and other fuel impurities
Continuous operating temperature capability up to 2200°F (1204°C), with short-term peak temperature resistance up to 1250°C
Excellent mechanical properties and structural stability at high temperatures, with no brittle phase formation during long-term service
Superior weldability and fabricability compared to many high-chromium superalloys, with reliable performance after forming and welding

Why 2.4880 Outperforms in Mixed Corrosion Environments: The Dual-Barrier Mechanism

The excellent corrosion resistance of 2.4880 in harsh industrial environments comes from a combined protective effect unique to its Ni‑Co‑Cr‑Si composition. Understanding this helps engineers choose the alloy with confidence.At high temperatures, the28% chromium contentquickly forms a thick, stable Cr₂O₃ layer that protects against oxidation. The silicon content of about 2.75% is what makes 2.4880 so strong. It helps make a thin, continuous SiO₂ layer right under the chromium oxide.This silica layer greatly slows down sulfur ions from passing through the protective coating. This is why 2.4880 resists sulfidation much better than alloys like 310S stainless steel, which has no SiO₂ layer and can be penetrated by sulfur along grain boundaries.The addition of about29% cobalt provides a third layer of protection. It keeps the FCC austenitic matrix stable during repeated heating and cooling, and reduces carbon absorption by replacing atoms in the material matrix. This directly improves resistance to carburization in hydrocarbon processing. These three effects — the Cr₂O₃ main barrier, the SiO₂ layer that blocks sulfur, and the cobalt‑stabilized base matrix — work together to form a self‑repairing, multi‑layer oxide system. It keeps the part structurally strong even when exposed at the same time to sulfur, chlorine, vanadium pentoxide, and alkali metal compounds from burning low‑grade heavy fuel.

This alloy is especially suitable for use in high-temperature corrosive environments caused by burning low-grade heavy fuels, waste incineration, or processing chemical raw materials containing corrosive impurities such as sulfur, chlorine, fluorine, vanadium and phosphorus. It performs better than traditional alloys including 310S, Inconel 600 and 800H under these severe working conditions.

2.4880 (NiCo29Cr28Si) vs. Conventional High-Temperature Alloys

Alloy Grade	Max Continuous Service Temperature	Key Advantage vs. 2.4880	Core Limitation vs. 2.4880
2.4880 (NiCo29Cr28Si)	1204°C (2200°F)	Unmatched SiO₂-enhanced sulfidation & low-grade fuel corrosion resistance	Premium alloy — cost justified by excellent lifetime in severe environments
310S Stainless Steel	1095°C (2000°F)	Lower initial cost for mild high-temperature applications	No SiO₂ sub-layer; rapid sulfur breakthrough and failure in sulfidizing or low-grade fuel environments
Inconel 600 (2.4816)	1095°C (2000°F)	Good general oxidation resistance; well-established supply chain	Limited sulfidation and carburization resistance; not suitable for low-grade fuel combustion or waste incineration environments
Incoloy 800H (1.4876)	1100°C (2012°F)	Good creep resistance at moderate temperatures; cost-effective for clean oxidizing environments	Inferior resistance to sulfur, vanadium and chloride contaminants; Fe-Ni matrix less stable than Ni-Co base under mixed attack
Haynes 230 (2.4733)	1150°C (2100°F)	Excellent thermal fatigue and oxidation resistance; high W content improves creep	Higher cost; lower sulfidation resistance than 2.4880 in heavy fuel environments; no Co-stabilized matrix

Core Industrial Applications of 2.4880 (NiCo29Cr28Si) Forging Parts

Our 2.4880 NiCo29Cr28Si forging parts are widely used in the most important industrial sectors worldwide, with main applications including:

Power Generation & Gas/Steam Turbine Systems

As a leading China manufacturer of turbine forgings, we supply 2.4880 alloy parts for thermal power plants, combined cycle power stations, and industrial gas turbines across Europe, Asia and the Middle East. Main products include:

Gas compressor and turbine blades, flat rectangular bars for rotating and stationary turbine parts
Gas and steam turbine disks, impellers, blisks, rotor parts and diaphragm nozzles
Turbine double-headed studs, fasteners, bolts and bolting for high-temperature service
Turbine guide rings, seal rings, labyrinth rings, packing seal diaphragms and rotor end rings
Gas turbine LPT 1st & 2nd stage turbine case casings and containment parts
Power plant steam turbine control reheat valve discs, valve spindles, stems, rods, valve seats, valve cores, valve sleeves and main steam valve bonnets

Petrochemical, Oil & Gas Processing Equipment

Our NiCo29Cr28Si forged parts are widely used in onshore and offshore oil & gas facilities, refineries and petrochemical plants in the Middle East, Southeast Asia and North America, where they withstand harsh sour service and high-temperature corrosive environments. Key applications include:

Forged pipes, tubes, shells, tubing barrels and housings for high-pressure high-temperature (HPHT) boilers, heat exchangers, pressure vessels, reactors and heaters
Tube sheets, baffle plates, nozzles, channel flanges and process piping parts for corrosive chemical processing
Valve bodies, stems, seats and closure parts for refinery and pipeline service
Forged bearings and bearing races for heavy-duty rotating equipment

Nuclear Power Generation Facilities

We manufacture 2.4880 alloy forged parts for nuclear power plant projects under our ISO 9001:2015 quality management system, with complete material traceability and documentation. Nuclear-specific quality plans, inspection hold points and extra documentation requirements can be fulfilled according to customer specifications. Following are main parts :

Flow limiter venturi forgings for steam generators
Forged tubes for pressurizer surge lines, reactor nozzles and primary pump flywheels
Divider plates for steam generators, latch housings, rod travel housings and bearing housings
Containment plates, rings, closure heads, waste flasks and critical pressure parts

Waste Incineration & Environmental Protection Equipment

Our 2.4880 forged thermocouple protection tubes and reactor parts are widely used in waste incineration plants and hazardous waste treatment facilities across Europe and Southeast Asia, where they provide exceptional service life in high-temperature flue gas environments with corrosive contaminants.

Global Project References & GEO Market Coverage for 2.4880 Forgings

Seamless rolled forged rings in 2.4880 NiCo29Cr28Si alloy for turbine and power generation applications

We have supplied high-quality 2.4880 (NiCo29Cr28Si) forging parts to customers in more than 50 countries worldwide, with proven project references in all important industrial markets. Our main GEO market project cases include:

European Market Project References

We have delivered custom NiCo29Cr28Si forged turbine blades, discs and LPT stage casings to major European industrial gas turbine makers, fully meeting EN standards. These parts are used for combined cycle power plants in Germany, France and the Netherlands, and they have excellent resistance to hot corrosion and sulfidation caused by burning low‑grade fuel. All parts passed 100% UT inspection according to EN 10228-3 and third‑party witness inspection.

Middle East Market Project References

For large petrochemical and refinery projects in Saudi Arabia, UAE and Kuwait, we produced 2.4880 alloy forged seamless tubes, tube sheets, baffle plates and channel flanges for high-temperature heat exchangers and pressure vessels. These parts provide excellent resistance to chloride, sulfur and vanadium corrosion in harsh sour service environments. They are made to meet ASME material requirements and API 6A specifications as stated in customer purchase orders.

Asia Pacific Market Project References

We supplied 2.4880 (NiCo29Cr28Si) forged control reheat valve discs, valve spindles and turbine guide rings for 600 MW ultra-supercritical thermal power plants in China, South Korea and Southeast Asia. These parts work well for a long time even at high-temperature up to 1204°C, and they have excellent thermal fatigue resistance and stable performance under cyclic operating conditions. We also delivered forged thermocouple protection tubes for waste incineration plants in Thailand and Malaysia.Their lifetime is three times longer than standard stainless steel parts.

North American Market Project References

For North American waste-to-energy facilities and chemical processing plants, we supplied custom 2.4880 alloy forged parts, including reactor nozzles, thermocouple protection tubes and heat exchanger parts. All products fully meet ASTM standards, with complete MTC 3.2 certification and third-party inspection.

Manufacturing Process & Strict Quality Control for 2.4880 (NiCo29Cr28Si) Forgings

We control the whole production process in-house, from steel melting to final machining and inspection, to guarantee the highest quality and performance of every 2.4880 NiCo29Cr28Si forging we deliver.

Premium Melting Process

All our 2.4880 NiCo29Cr28Si forgings are made from premium steel produced via double melting process: vacuum induction melting + electro-slag re-melting (VIM/ESR) or vacuum induction melting + vacuum arc re-melting (VIM/VAR). This guarantees ultra-clean material matrix, consistent chemical composition, minimal non-metallic inclusions, and consistent mechanical properties in the final product.

Precision Forging & Heat Treatment

Our hot working process is performed with precise temperature control on our 2000T, 4000T and 6300T hydraulic forging presses, to get a consistent fine-grained microstructure throughout the whole forging. Unless otherwise specified by the customer, all 2.4880 forged parts are supplied in solution annealed condition:

Primary solution annealing at 2050°F (1121°C) with rapid water or air quenching for optimum mechanical properties and corrosion resistance
Intermediate annealing, if needed during fabrication and forming operations, can be performed at temperatures as low as 1950°F (1066°C)
Full heat treatment process documentation is provided with every delivery

Our in-house forging equipment also includes 1m and 5m seamless rolling machines, multiple electro-hydraulic forging hammers, and 10+ automatic heat treatment furnaces, to handle all your custom forging requirements.

Welding & Fabrication Guidelines for 2.4880 (NiCo29Cr28Si)

Compared to similar alloys, 2.4880 NiCo29Cr28Si welds well when the following guidelines are followed. Our engineering team can provide material optimized for your later welding work, and we include full material heat certificates to support your welding procedure qualification (WPS/PQR) process.

Recommended welding processes: GTAW (TIG welding) is the best process for important applications due to precise heat input control. GMAW (MIG) and SMAW (covered electrode) are also applicable for production welding.
Filler metal selection: Use a high-nickel-chromium-cobalt ERNiCrCoMo-class filler wire (GTAW/GMAW) or matching-composition electrode (SMAW) to maintain the Ni-Co-Cr-Si chemistry in the weld zone. Contact our technical team for specific filler recommendations for your welding standard.
Pre-heat requirements: Pre-heating is generally not needed for base material sections below 25 mm. For heavier sections or restrained joints, a mild pre-heat of 100–150°C may be applied to reduce thermal shock risk.
Post-weld heat treatment (PWHT): When full corrosion resistance must be restored after welding, perform a full solution anneal at 1121°C (2050°F) followed by rapid water or air quench. For structural welds where PWHT is not practical, the as-welded condition is serviceable in many non-severe applications.
Surface preparation: Machine or grind all surfaces to be welded to bright metal. Avoid contamination from iron-containing tools — use dedicated stainless-steel or nickel-alloy wire brushes and separate abrasive wheels to prevent iron contamination that could initiate pitting.

Comprehensive Quality Inspection & Nondestructive Testing

All finished 2.4880 NiCo29Cr28Si forged parts are 100% inspected to make sure they are free from defects such as cracks, flakes, seams, segregation and non-metallic inclusions. Our standard inspection scope in delivery condition includes:

Full visual inspection and dimension test per customer drawings
Material verification test via PMI (Positive Material Identification)
100% ultrasonic testing (UT) according to EN 10228-3 (Table 3) or ASTM A388 standard
Magnetic particle testing (MT) and liquid penetrant testing (PT) available on request
Full mechanical property testing (tensile strength, yield strength, elongation, hardness)
Chemical composition analysis and metallographic microstructure inspection

We provide complete EN 10204 3.1 or 3.2 mill test certificates with every shipment, with full material traceability from melting to final inspection. Third-party inspection services from BV, SGS, TUV and other international agencies are available on request.

Chemical Composition, Mechanical & Physical Properties of 2.4880 (NiCo29Cr28Si)

Chemical Composition (Weight %, Max Unless Specified) — DIN 17744 / W.Nr. 2.4880

Element	Content Range	Element	Content Range
Carbon (C)	≤ 0.05%	Cobalt (Co)	29.0% Nominal
Silicon (Si)	2.75% Nominal	Chromium (Cr)	28.0% Nominal
Manganese (Mn)	≤ 0.50%	Nickel (Ni)	Balance
Molybdenum (Mo)	≤ 1.00%	Tungsten (W)	≤ 1.00%
Aluminum (Al)	≤ 0.40%	Iron (Fe)	≤ 2.00%
Titanium (Ti)	≤ 0.50%	Niobium (Nb)	≤ 1.00%

Room Temperature Mechanical Properties (Solution Annealed Condition, Minimum Values)

Mechanical Property	Requirement	Test Method
Tensile Strength (Rm)	≥ 724 MPa (105 ksi)	ISO 6892-1 / ASTM E8
0.2% Proof Strength / Yield Strength (Rp0.2)	≥ 321 MPa (46.5 ksi)	ISO 6892-1 / ASTM E8
Elongation (A)	≥ 66%	ISO 6892-1 / ASTM E8
Hardness	≤ 220 HB (typical)	ISO 6506 / ASTM E10

Physical & Thermal Properties of 2.4880 (NiCo29Cr28Si)

The physical and thermal property data below is essential for design engineers carrying out thermal stress calculations, heat exchanger design, or high-temperature structural analysis using 2.4880 NiCo29Cr28Si alloy. Be aware that elastic modulus and thermal conductivity change noticeably with temperature — both must be considered in high-temperature finite element analysis (FEA) and thermal modeling.

Physical / Thermal Property	Value at 20°C	Value at 500°C	Value at 1000°C	Unit
Density	8.19	—	—	g/cm³
Melting Temperature Range	1260 – 1345°C (2300 – 2453°F)			°C
Elastic Modulus (E)	202	178	152	GPa
Shear Modulus (G)	78	68	—	GPa
Poisson's Ratio	0.31	—	—	—
Thermal Conductivity (λ)	10.5	16.8	23.0	W/(m·K)
Specific Heat Capacity (cp)	419	481	—	J/(kg·K)
Mean Thermal Expansion (20–100°C)	12.6	—	—	μm/(m·°C)
Mean Thermal Expansion (20–500°C)	—	13.9	—	μm/(m·°C)
Mean Thermal Expansion (20–1000°C)	—	—	15.3	μm/(m·°C)
Electrical Resistivity (ρ)	1.19	1.24	—	μΩ·m

Note: Physical property values above are representative typical values for the nominal 2.4880 / NiCo29Cr28Si composition in solution annealed condition. Actual values may vary slightly depending on exact heat chemistry. For critical design applications, request certified property data with your material test certificate.

Why Choose Jiangsu Liangyi as Your 2.4880 (NiCo29Cr28Si) Forging Partner in China

25+ years of professional experience in manufacturing high-alloy open die forgings and seamless rolled rings, with expertise in nickel-based superalloys including 2.4880 NiCo29Cr28Si
ISO 9001:2015 certified factory with full in-house production capacity, from steel melting, forging, heat treatment to final CNC machining and inspection
Advanced production and inspection equipment, include 6300T hydraulic forging press, 5m seamless rolling machine, and full set of NDT testing equipment
Strict quality control system with full material traceability for every batch of products, all parts meet all important international standards
Custom manufacturing capabilities, fully meet your drawings, technical specifications and application requirements
Exported to more than 50 countries worldwide, with proven project references in power generation, petrochemical, nuclear, oil & gas and environmental protection industries
Competitive factory-direct pricing and reliable lead times for both small-batch prototype and mass production orders
Professional engineering team with full technical support, from material selection to after-sales service

Delivery Conditions, Lead Time & Packaging for 2.4880 Forgings

We understand that reliable delivery schedules and well-defined delivery conditions are as important as product quality in industrial procurement. Below is a transparent summary of our standard delivery terms for 2.4880 NiCo29Cr28Si forged parts.

Standard sizes (bars <2t, rings <3t)

4 – 8 Weeks

Typical lead time from order confirmation to ex-works dispatch

Medium custom forgings (3 – 10 tons)

8 – 12 Weeks

Including raw material procurement, forging, heat treatment and inspection

Large custom forgings (>10 tons / complex)

12 – 20 Weeks

Large rings, multi-step forgings or parts requiring complex machining

Third-party inspection included

+1 – 2 Weeks

Additional time for witness inspection by BV, SGS, TUV or customer inspector

Standard Delivery Conditions Available

As-forged (black surface): Hot-forged, not heat treated — available when customer performs their own heat treatment
Solution annealed + air / water quenched (standard): Most common delivery condition; optimum mechanical properties and corrosion resistance
Solution annealed + rough-turned OD: Turned outside diameter and/or faced ends for ease of further machining at customer's facility
Fully machined to drawing: Complete CNC machining to final dimensions with surface finish as specified; dimensional inspection report included

Export Packaging Standard

All 2.4880 NiCo29Cr28Si forged parts use our standard export packaging for sea freight to guard against corrosion and physical damage. All machined surfaces are coated with rust-preventive oil, wrapped in polyethylene film, and packed in export‑quality fumigated wooden crates suitable for ocean shipping. Heavy rings and large forgings are secured inside the crates with steel bands and wooden supports. Net weight, gross weight, dimensions and UN markings are clearly marked on each package.

Shipping Documents Provided with Every Shipment

EN 10204 3.1 or 3.2 Mill Test Certificate (MTC) with full chemical and mechanical test results
Dimensional inspection report / FAI (First Article Inspection) report if needed
NDT test reports (UT per EN 10228-3 or ASTM A388, PT/MT if applicable)
Commercial invoice, packing list and certificate of origin
Third-party inspection certificate (BV, SGS, TUV, etc.) if arranged

How to Order 2.4880 (NiCo29Cr28Si) Forgings: RFQ Checklist

To help our engineering team prepare a fast, accurate and fully detailed quotation for your 2.4880 NiCo29Cr28Si forging project, please include the following information in your inquiry. The more details you provide, the faster and more competitive our quotation will be.

7-Point RFQ Information Checklist for 2.4880 Forgings

Material designation — specify as: 2.4880 / NiCo29Cr28Si. Include the applicable standard (DIN 17744, ASTM, EN, etc.) if referenced in your drawing or specification.

Product form — round bar, flat bar, seamless ring, hollow forging, disc, custom shape. Attach your engineering drawing (PDF or DXF/DWG) for custom-shaped forgings.

Dimensions with tolerances — OD, ID, length, height, wall thickness and all important dimensional requirements. For standard bars or rings, nominal dimensions are sufficient for budgetary quotation.

Quantity — number of pieces and/or total weight (kg or tons). Indicate if this is a one-time order, recurring order, or a blanket contract requirement.

Delivery condition — as-forged, solution annealed, rough-turned, or fully machined to drawing. Specify surface finish requirements if applicable (Ra value, grinding, polishing).

Inspection & certification requirements — specify EN 10204 3.1 or 3.2 MTC, NDT scope (UT standard: EN 10228-3 Table 3 acceptance class, or ASTM A388 level), and whether third-party witness inspection is needed.

Application description — briefly describe the end-use application (e.g., gas turbine casing, heat exchanger tube sheet, waste incinerator protection tube) so our team can confirm suitability and flag any special requirements.

Frequently Asked Questions about 2.4880 (NiCo29Cr28Si) Forging Parts

What is 2.4880 (NiCo29Cr28Si) alloy and what are its international equivalent designations?

2.4880, also designated NiCo29Cr28Si per DIN/EN standard, is a solid-solution-strengthened nickel-cobalt-chromium-silicon superalloy. Its international equivalents are: Nicrofer® 3228 SiCo (VDM Metals GmbH registered trade name), W.Nr. 2.4880 / DIN 17744 NiCo29Cr28Si (Germany/Europe), and ISO NiCo29Cr28Si. All these designations refer to the same nominal Ni-Co-Cr-Si quaternary alloy chemistry and are fully interchangeable for engineering specification purposes.

What are the physical and thermal properties of 2.4880 NiCo29Cr28Si alloy?

The main physical and thermal properties of 2.4880 (NiCo29Cr28Si) are Density: 8.19 g/cm³; Melting range: 1260–1345°C; Elastic modulus: 202 GPa at 20°C, 178 GPa at 500°C, 152 GPa at 1000°C; Thermal conductivity: 10.5 W/(m·K) at 20°C, 23.0 W/(m·K) at 1000°C; Mean thermal expansion coefficient (20–1000°C): 15.3 μm/(m·°C); Specific heat at 20°C: 419 J/(kg·K); Electrical resistivity at 20°C: 1.19 μΩ·m.

What is the maximum service temperature of 2.4880 alloy?

2.4880 (NiCo29Cr28Si) has a maximum continuous operating temperature of 1204°C (2200°F), and can withstand short‑term peaks up to 1250°C. This is much higher than common alternatives: 310S stainless steel (max 1095°C), Inconel 600 (max 1095°C) and Incoloy 800H (max 1100°C). Its higher temperature limit comes from the cobalt‑stabilized FCC structure, which resists phase changes and keeps structural strength under long‑term high‑temperature use.

What are the mechanical properties of 2.4880 forgings in solution annealed condition?

When supplied in the solution‑annealed condition (main annealing at 1121°C / 2050°F plus rapid quenching), 2.4880 NiCo29Cr28Si forgings meet these minimum room‑temperature mechanical properties: Tensile Strength (Rm) ≥ 724 MPa (105 ksi); 0.2% Proof Strength / Yield Strength (Rp0.2) ≥ 321 MPa (46.5 ksi); Elongation (A) ≥ 66%; Hardness ≤ 220 HB (typical). Full certified test reports to EN 10204 3.1 or 3.2 are included with every shipment.

What forging product forms and sizes can Jiangsu Liangyi manufacture in 2.4880 alloy?

Jiangsu Liangyi makes 2.4880 NiCo29Cr28Si forgings in the following forms and size ranges: Round bars up to Ø 2000 mm, length up to 6000 mm; Seamless rolled rings up to Ø 6000 mm OD, height up to 2000 mm, 30 tons; Hollow forgings up to Ø 3000 mm OD, length up to 3000 mm; Discs / disks up to Ø 3000 mm OD; Custom forgings (tube sheets, flanges, valve bodies) up to 30 tons per piece. All products are machined based on drawing and their weight ranges from 30 kg to 30 tons,

What welding filler material is recommended for 2.4880 (NiCo29Cr28Si)?

For welding 2.4880 (NiCo29Cr28Si), use ERNiCrCoMo filler wire for GTAW/GMAW, or a matching‑composition covered electrode for SMAW. Preheating is usually not needed for sections thinner than 25 mm. For full corrosion resistance after welding, post‑weld solution annealing at 1121°C (2050°F) with rapid quenching is recommended. GTAW (TIG) is the preferred method for critical applications. Avoid contamination from iron‑based tools — use only brushes and abrasives designed for nickel alloys.

What is the typical lead time and delivery condition for 2.4880 forgings from Jiangsu Liangyi?

Typical lead times: 4–8 weeks for standard bars and rings under 3 tons; 8–12 weeks for medium custom forgings from 3 to 10 tons; 12–20 weeks for large custom forgings or intricate machined parts. An extra 1–2 weeks is needed if third‑party witness inspection is needed. The standard delivery condition is solution annealed plus pickled or rough‑turned surface, with EN 10204 3.1 or 3.2 material test certificate. We can also supply parts fully machined to your drawing. Export packaging includes rust‑preventive oil, PE wrapping, and fumigated wooden crates suitable for sea freight.

What information do I need to provide when requesting a 2.4880 forging quotation?

To get an accurate quotation, please provide: (1) Material designation — 2.4880 / NiCo29Cr28Si and applicable standard (DIN 17744, ASTM, EN); (2) Product form — bar, ring, hollow, disc, custom; (3) Dimensions with tolerances, or attach your engineering drawing; (4) Quantity — pieces and/or total weight; (5) Delivery condition — as-forged, annealed, rough-turned, or fully machined; (6) Inspection requirements — EN 10204 3.1 or 3.2, NDT scope, third-party inspection; (7) Application description — end-use industry and service conditions. WhatsApp: +86-13585067993.

How does 2.4880 NiCo29Cr28Si compare to Inconel 600 and 310S stainless steel?

2.4880 (NiCo29Cr28Si) performs better thanks to its unique dual‑barrier structure: its 2.75% silicon content helps form a SiO₂ sub‑layer under the main Cr₂O₃ protective film, which greatly blocks sulfur ion penetration — making it far more resistant in sulfidation environments.
Compared with 310S: it has stronger resistance to sulfidation and chloride corrosion, a higher maximum operating temperature (1204°C vs. 1095°C), and better protection against vanadium and fuel ash corrosion.Compared withInconel 600: it offers better resistance to sulfidation, carburization, and degradation from low‑grade fuel combustion. 2.4880 is the best choice material when other common superalloys cannot provide sufficient lifetime in environments with multiple corrosive contaminants.

Which countries has Jiangsu Liangyi supplied 2.4880 forging parts to?

Jiangsu Liangyi has supplied 2.4880 NiCo29Cr28Si forging parts to customers in more than 50 countries, with big project references in: Germany, France and the Netherlands (gas turbine manufacturers, combined cycle power stations, EN-compliant); Saudi Arabia, UAE and Kuwait (petrochemical and refinery heat exchangers, manufactured to ASME material requirements and API 6A material specifications per customer purchase order); China, South Korea and Southeast Asia (600 MW ultra-supercritical thermal power plants); Thailand and Malaysia (waste incineration thermocouple protection tubes — 3× service life vs. stainless steel); North America (waste-to-energy, chemical processing, ASTM compliant).

Contact Us for 2.4880 (NiCo29Cr28Si) Forging Quotation

We are glad to provide the best factory-direct price and superior quality 2.4880 NiCo29Cr28Si forged materials for global clients. Send your custom drawing, material requirement, quantity and application details for a detailed, no-obligation quotation.

Phone / WhatsApp: +86-13585067993

Website: https://www.jnmtforgedparts.com

Address: Jiangyin City, Jiangsu Province, China