Place of Origin:
China
Brand Name:
FH®
Certification:
ISO 9001, ISO14001
Model Number:
FH 3023
FH® Alloy manufactures straight radiant tubes for industrial furnaces and heat treatment equipment, providing customized solutions according to customer drawings, furnace structures, operating temperatures, and service conditions.
Straight-type radiant tubes are commonly used in indirect heating systems, where heat is transferred through the radiant tube wall while the heating source remains separated from the furnace working chamber.
This design helps provide stable heat transfer, controlled furnace atmospheres, and reliable high-temperature operation.
Product Overview
The Straight Radiant Tube features a simple cylindrical structure suitable for industrial furnace installations where installation space, burner arrangement, and heating requirements favor a straight-tube configuration.
FH® Alloy can manufacture straight radiant tubes using different heat-resistant stainless steels, high-temperature cast alloys, and nickel-based alloys according to the actual furnace conditions.
Customization is available for:
Typical Specifications
| Item | Specification |
| Product Name | Straight Radiant Tube |
| Product Type | Industrial Furnace Radiant Tube |
| Structure | Straight Type |
| Material | Heat-Resistant Stainless Steel / High-Temperature Alloy / Nickel-Based Alloy |
| Outside Diameter | Customized |
| Wall Thickness | Customized |
| Overall Length | Customized |
| End Connection | According to Drawing |
| Flange Design | According to Drawing |
| Manufacturing | Casting / Fabrication / Welding / Machining |
| Application | Industrial Furnace / Heat Treatment Furnace |
| Customization | OEM / Drawing-Based Manufacturing |
| Manufacturer | FH® Alloy |
Straight Radiant Tube Dimensions
Custom Dimensions
Straight radiant tubes can be manufactured according to the customer's existing furnace structure or technical drawing.
Typical dimensional parameters include:
All dimensions can be customized according to the furnace design.
For replacement projects, customers may also provide an existing radiant tube sample, drawing, or dimensional sketch.
Material Options
Material selection has a major influence on radiant tube service life.
FH® Alloy can provide different heat-resistant alloy grades according to the operating temperature, furnace atmosphere, burner conditions, and thermal cycling requirements.
Typical material options include:
The final material should be selected according to the actual working environment rather than temperature alone.
Designed for Indirect Furnace Heating
Straight radiant tubes are commonly installed between the heating source and the furnace chamber.
During operation, heat generated inside or around the radiant tube is transferred through the tube wall and radiated into the furnace.
This design is suitable for applications requiring:
Typical Applications
Straight radiant tubes can be used in:
They can also be customized for different burner systems and furnace configurations.
Manufacturing & Fabrication
Radiant tubes work continuously under elevated temperatures, so manufacturing quality directly affects their service performance.
FH® Alloy pays particular attention to:
Depending on the product design, manufacturing may include:
Casting → Machining → Tube Fabrication → Welding → Flange Assembly → Dimensional Inspection → Surface Finishing → Final Inspection
Key Product Advantages
High-Temperature Performance
Heat-resistant alloy materials are selected for demanding industrial furnace environments.
Good Oxidation Resistance
Suitable material selection helps improve resistance to oxidation during long-term furnace operation.
Stable Straight-Tube Structure
The simple straight structure is convenient for installation, replacement, and furnace maintenance.
Custom Connection DesignBurner-side, exhaust-side, flange, and mounting structures can be manufactured according to customer drawings.
OEM Manufacturing
FH® Alloy supports customized production for furnace manufacturers, heat treatment plants, and industrial equipment companies.
Quality Inspection
Depending on customer requirements, inspection can include:
Additional testing requirements can be confirmed before production.
Why Choose FH® Alloy?
FH® Alloy specializes in custom heat-resistant alloy components for industrial furnaces and heat treatment equipment.
Our product range includes:
We support OEM, drawing-based manufacturing, sample-based replacement, and custom material selection for international customers.
Request a Quote
Need a custom or replacement Straight Radiant Tube for your industrial furnace?
Please provide:
Send your drawing to FH® Alloy for technical review and quotation.
FAQ
Q1: Can you manufacture straight radiant tubes according to our drawings?
Yes. FH® Alloy supports custom manufacturing according to customer drawings, samples, or existing furnace dimensions.
Q2: What materials are available?
Common options include 1.4848, 1.4849, 1.4852, 2.4879, high-chromium alloys, high-nickel alloys, and other heat-resistant grades.
Q3: Can you manufacture replacement radiant tubes for existing furnaces?
Yes. Customers can provide the existing product drawing, sample, photos, or dimensional information for replacement production.
Q4: Can the flange and connection structure be customized?
Yes. Flange dimensions, mounting holes, burner interfaces, exhaust connections, and end structures can all be customized.
Q5: How should we select the material?
Please provide the operating temperature, furnace atmosphere, heating method, and service conditions. FH® Alloy can recommend a suitable material based on these parameters.
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