Place of Origin:
China
Brand Name:
FH®
Certification:
ISO 9001, ISO14001
Model Number:
FH 4008
2.4879 Furnace Rolls | Custom G-NiCr28W Alloy Roll Manufacturer
FH® Alloy manufactures custom 2.4879 furnace rolls for high-temperature annealing, heat treatment and continuous furnace systems.
The furnace rolls shown here are manufactured in EN 2.4879 / G-NiCr28W heat-resistant cast alloy, with nominal dimensions of 252 × 202 × 3400 mm. The long roll body, tapered transition sections and precision-machined journals are designed to support stable rotation and reliable material transportation in demanding industrial furnace environments.
As an experienced heat-resistant alloy component manufacturer, Wuxi Junteng Fanghu Alloy Technology Co., Ltd. (FH® Alloy) supplies furnace rolls according to customer drawings, furnace operating conditions and inspection requirements.
⚙️ Product Overview
A furnace roll supports and transports workpieces through the heating, soaking and cooling zones of an industrial furnace.
During continuous production, the roll may be exposed to:
For this reason, the roll material, structural design, shaft connection, machining accuracy and operating conditions must be evaluated together.
FH® Alloy manufactures 2.4879 high-temperature furnace rolls according to the customer’s drawings and technical specifications. Dimensions, journal structures, tolerances, surface finish and inspection standards can be customized for new furnace projects or replacement requirements.
📋 Technical Specifications
| Item | Product Information |
| Product name | 2.4879 Heat-Resistant Furnace Roll |
| Material grade | EN 2.4879 |
| Material designation | G-NiCr28W |
| Material category | Heat-resistant nickel-based cast alloy |
| Nominal dimensions | 252 × 202 × 3400 mm |
| Overall length | 3400 mm |
| Product structure | Long roll body with tapered transitions and machined journals |
| Application | High-temperature industrial furnace systems |
| Manufacturing type | OEM customized production |
| Dimensional tolerances | According to customer drawing |
| Surface condition | Machined or customized |
| Inspection | According to project requirements |
| Manufacturer | FH® Alloy |
🔥 About 2.4879 / G-NiCr28W Alloy
EN 2.4879, also designated G-NiCr28W, is a chromium-tungsten-silicon alloyed nickel-based casting material developed for high-temperature service.
2.4879 as suitable for heat-loaded transport components in annealing, hardening and continuous furnaces, including rolls, grids, baskets, support beams and related furnace hardware. The material is reported as resistant to oxidizing gases and capable of use in air at temperatures up to approximately 1150°C, depending on the actual component design and operating conditions.
Typical nominal alloying elements include nickel, chromium, tungsten, silicon and carbon. The nickel-chromium matrix supports elevated-temperature stability, while tungsten contributes to high-temperature load-bearing and creep performance.
Important operating note
The published maximum material temperature is not automatically the guaranteed operating temperature of a finished furnace roll. Actual allowable service conditions depend on:
The material is not recommended for reducing atmospheres containing H₂S
⭐ Key Features of FH® Alloy 2.4879 Furnace Rolls
High-Temperature Oxidation Resistance
The chromium-containing nickel-based alloy is designed for operation in oxidizing high-temperature environments.
This helps reduce excessive oxidation and surface degradation during continuous furnace service.
High-Temperature Load-Bearing Capability
Furnace rolls must maintain structural stability while supporting products at elevated temperatures.
The G-NiCr28W alloy is used for highly loaded furnace transport components where resistance to static and dynamic stress is required.
Resistance to Long-Term Thermal Exposure
Continuous furnace rolls can remain at elevated temperatures for extended periods.
The material’s high-temperature and creep-related properties make it suitable for components exposed to prolonged thermal loading, subject to correct engineering design.
Custom Roll Geometry
FH® Alloy can manufacture furnace rolls according to customer drawings, including customization of:
Precision-Machined Journals
The roll journals can be finish-machined according to the required bearing, coupling or drive arrangement.
Important characteristics such as concentricity, straightness, journal dimensions and surface finish can be controlled according to the approved drawing.
🏭 Typical Applications
FH® Alloy 2.4879 furnace rolls can be engineered for applications such as:
Continuous Annealing Furnaces
Used to support and transport metal products through controlled heating and soaking zones.
Roller Hearth Furnaces
Suitable for continuous or batch transportation of plates, components and other heat-treated products.
Hardening and Tempering Furnaces
Designed for furnace systems involving repeated high-temperature operation and mechanical loading.
Industrial Heat Treatment Lines
Used in metallurgical, steel-processing, machinery, automotive and special-alloy production facilities.
Continuous Processing Furnaces
Applicable to production lines requiring long rolls, stable rotation and consistent material movement.
🧩 Furnace Roll Design Considerations
A reliable furnace roll cannot be selected by material grade alone. The following engineering factors should be reviewed before production.
Operating Temperature
Provide both:
This helps determine whether 2.4879 is suitable for the expected loading and service life.
Furnace Atmosphere
The customer should specify whether the furnace uses:
Atmosphere composition can significantly affect alloy performance.
Mechanical Load
Required information includes:
Rotation Conditions
Please specify:
Installation Structure
Bearing positions, shaft dimensions, sealing arrangements and thermal expansion allowances should be clearly defined on the drawing.
🛠️ Manufacturing and Quality Control
FH® Alloy can arrange the production and inspection process according to the technical requirements of each furnace-roll project.
Material Verification
Material documentation and chemical-composition verification can be supplied according to the purchase specification.
Dimensional Inspection
Inspection may cover:
Non-Destructive Testing
Depending on the product structure and customer requirements, inspection options may include:
Rotation and Balance Inspection
Runout, concentricity and dynamic balancing can be evaluated where required by the operating speed and furnace design.
Documentation
Available project documents may include:
All inspection requirements should be confirmed before production.
🏆 Why Choose FH® Alloy?
Direct Manufacturer
FH® Alloy manufactures heat-resistant alloy castings and customized industrial furnace components for global customers.
OEM Production
Products can be manufactured according to customer drawings, original samples or replacement specifications.
Material Selection Support
Material recommendations can be provided based on furnace temperature, atmosphere, load and service requirements.
Custom Machining Capability
Furnace-roll bodies, tapered sections, shafts and journals can be manufactured to project-specific dimensions.
Export-Oriented Service
FH® Alloy supports technical communication, inspection documentation, export packaging and international project delivery.
❓ FAQ
Q1: What is 2.4879 material?
2.4879 is the EN material number for G-NiCr28W, a heat-resistant nickel-based cast alloy containing chromium, tungsten and silicon. It is used for high-temperature furnace components such as rolls, grids, baskets and support structures.
Q2: What are the dimensions of this furnace roll?
The nominal dimensions are:
252 × 202 × 3400 mm
Final diameters, wall thicknesses, shaft dimensions and tolerances should be confirmed against the approved production drawing.
Q3: What is the maximum operating temperature of 2.4879?
Published material information indicates oxidation resistance in air at temperatures up to approximately 1150°C. However, the allowable operating temperature of a finished furnace roll depends on mechanical load, supported span, rotational speed, furnace atmosphere and required service life.
Q4: Can FH® Alloy manufacture replacement furnace rolls?
Yes. FH® Alloy can manufacture replacement rolls according to:
A complete drawing is recommended for dimensional and installation verification.
Q5: Can the shaft and journal structure be customized?
Yes. Shaft diameter, journal length, bearing position, keyway, thread, coupling and drive-end structure can be customized according to the furnace design.
Q6: What information is required for a quotation?
Please provide:
🏢 About FH® Alloy
Wuxi Junteng Fanghu Alloy Technology Co., Ltd. (FH® Alloy) manufactures customized heat-resistant and corrosion-resistant alloy components for industrial furnace and thermal-processing applications.
Our product range includes:
FH® Alloy supports custom production based on drawings, materials and actual operating conditions.
Send your inquiry directly to us
