Heat Treatment Furnace Parts FAQs

1. What heat treatment furnace components do you manufacture?

ECOOSUN manufactures custom heat treatment furnace components for furnace manufacturers, commercial heat treaters, captive heat treatment departments, maintenance companies and spare-parts distributors.

Our core products include heat treatment baskets, furnace trays, heat treatment fixtures, radiant tubes, furnace rolls, furnace fans and impellers, retorts, muffles, walking beams, grate plates and furnace conveyor parts. We also manufacture custom heat-resistant alloy castings according to customer drawings, samples, material specifications, operating temperatures, load conditions and expected service life.

Technical Review: ECOOSUN Engineering Team
Reviewed by: Heat-Resistant Alloy Casting Engineers
Last Updated: July 2026

For a Silica Sol Investment Casting quotation, send the drawing or 3D model, alloy, quantity, critical dimensions and inspection requirements.

Heat treatment baskets and trays both carry workpieces through high-temperature processes, but their structures and applications are different.

A heat treatment basket normally has raised side walls to prevent parts from falling during loading, transportation and heat treatment. It is commonly used for small or loose components. A heat treatment tray generally has a flatter, more open structure and is used to support larger workpieces, fixtures or arranged loads.

The correct design depends on the furnace type, workpiece geometry, load weight, airflow requirements, operating temperature and handling method.

Technical Review: ECOOSUN Engineering Team
Reviewed by: Heat-Resistant Alloy Casting Engineers
Last Updated: July 2026

The correct heat-resistant alloy should be selected according to the actual furnace environment rather than temperature alone.

Important factors include maximum operating temperature, furnace atmosphere, heating and cooling frequency, load weight, required creep strength, oxidation resistance, carburization resistance, thermal-fatigue resistance and expected service life. The component structure and manufacturing process must also be considered.

ECOOSUN can review your drawings and operating conditions and recommend a suitable heat-resistant stainless steel, high-chromium high-nickel alloy or equivalent customer-specified grade.

Technical Review: ECOOSUN Engineering Team
Reviewed by: Heat-Resistant Alloy Casting Engineers
Last Updated: July 2026

Yes. ECOOSUN can manufacture replacement furnace parts from existing samples, damaged components, 2D drawings, 3D models, photographs or basic dimensional information.

Our engineering team can measure the sample, identify critical dimensions, review the original structure and evaluate the likely material grade. We can also suggest improvements to wall thickness, reinforcement, machining allowance or alloy selection when premature deformation, cracking, oxidation or wear has occurred.

For the most accurate replacement, customers should also provide the furnace type, operating temperature, atmosphere, load conditions and failure history.

Technical Review: ECOOSUN Engineering Team
Reviewed by: Heat-Resistant Alloy Casting Engineers
Last Updated: July 2026

Radiant tube failure is commonly caused by oxidation, carburization, thermal fatigue, overheating, creep deformation, uneven burner operation, insufficient support or repeated heating and cooling cycles.

Other possible causes include unsuitable alloy selection, excessive wall-temperature differences, incorrect tube alignment, poor welding quality, burner flame impingement and restricted thermal expansion. In some applications, furnace atmosphere contamination can also accelerate corrosion or material degradation.

A proper failure analysis should consider the crack location, deformation pattern, surface condition, operating history, alloy composition and furnace temperature distribution.

Technical Review: ECOOSUN Engineering Team
Reviewed by: Heat-Resistant Alloy Casting Engineers
Last Updated: July 2026

Yes. Furnace fans and impellers can be customized according to furnace dimensions, operating temperature, atmosphere, airflow requirements, rotational speed, shaft size and installation method.

ECOOSUN can manufacture custom fan blades, fan hubs, impellers and complete furnace circulation assemblies from heat-resistant alloys. Engineering support may include drawing review, material selection, blade-angle evaluation, casting or welding-process planning, precision machining and dynamic balancing when required.

Customers should provide the drawing, rotation direction, speed, operating temperature and required airflow or pressure data.

Technical Review: ECOOSUN Engineering Team
Reviewed by: Heat-Resistant Alloy Casting Engineers
Last Updated: July 2026

Investment casting is suitable for relatively small or medium-sized furnace parts with complex shapes, thinner sections, detailed features or tighter dimensional requirements.

Typical furnace applications include burner nozzles, burner tips, flame holders, radiant tube fittings, tube supports, brackets, guide components, conveyor links, pusher parts, fixture connectors, fan components and other custom heat-resistant alloy castings.

Large heat treatment baskets, trays and heavy furnace structures are usually more suitable for sand casting, lost foam casting, centrifugal casting, fabrication or a combination of casting and welding.

Technical Review: ECOOSUN Engineering Team
Reviewed by: Heat-Resistant Alloy Casting Engineers
Last Updated: July 2026

To prepare an accurate quotation, please provide a 2D drawing, 3D model or existing sample whenever possible.

The following information is also helpful:

• Material grade or required performance
• Product dimensions and unit weight
• Estimated order quantity
• Maximum operating temperature
• Furnace atmosphere
• Load and mechanical requirements
• Machining and dimensional tolerances
• Inspection and certification requirements
• Surface-treatment requirements
• Delivery destination

For replacement furnace parts, photographs, failure information and actual operating conditions can help us recommend a more suitable manufacturing process and alloy.

Technical Review: ECOOSUN Engineering Team
Reviewed by: Heat-Resistant Alloy Casting Engineers
Last Updated: July 2026