Heat Resistant Furnace Components
Castings for continuous high temperature service
What This Part Is And Why It Is Made This Way
Furnace components spend their life above 1000 °C, where creep and oxidation, not mechanical load, set the replacement interval. Grades are chosen against the working temperature and the fuel chemistry rather than against room temperature strength.
These castings are produced in heat resistant grades 1.4777, 1.4776, 1.4823 and 1.4855 for typical maximum working temperatures around 1050 °C to 1150 °C.
What You Get From This Route
Alloy selected against the actual working temperature and duty.
Lost wax, lost foam and shell moulding routes available for complex furnace shapes.
Quotation based on actual material consumption, which keeps pricing transparent.
Application Scenarios
- Biomass boiler internals
- Industrial furnace components
- Heat treatment furnace fixtures
- High temperature process equipment
Who It Is For
- Boiler and furnace manufacturers
- Plants replacing burnt out furnace internals
- Engineering contractors specifying thermal equipment
Technical Features
- Material 1.4777 / 1.4776 / 1.4823 / 1.4855
- Typical maximum working temperature around 1050 °C - 1150 °C
- Lost wax, lost foam and shell moulding casting
- Pricing based on actual material consumption
What Buyers Run Into Without This Specification
- Parts specified on room temperature strength fail by creep within a season.
- Ash chemistry attacks the alloy in ways the original specification never considered.
- Small annual volumes make suppliers reluctant to quote.
Published Material Weight And Process Data
Figures below are the published capability for high alloy parts. Part specific values — tolerance on individual features, finish, packing — are confirmed at drawing review and marked TBC until then.
| Food Machinery Material | 1.4308 / 1.4309 / 1.4340 |
|---|---|
| Food Machinery Weight | 9 kg - 800 kg |
| Grate Bar Material | 1.4777 / 1.4776 / 1.4823 / 1.4743 / LH26 / EN-GJL-200 + 3%Cr |
| Grate Bar Weight | Typical products 2 kg - 50 kg; some grate bars and liners around 10 kg - 50 kg |
| Biomass Material | 1.4777 / 1.4776 / 1.4823 / 1.4855 |
| Working Temperature | Typical maximum around 1050 °C - 1150 °C depending on material and duty |
| Process | Shell moulding, lost wax and lost foam casting, plus CNC machining |
| Tolerance | Shell moulding normally CT9-10; lost wax normally CT8; surface roughness about Ra 12.5 |
| Part Specific Tolerance | TBC — confirmed against the customer drawing |
| Minimum Order Quantity | TBC — depends on the process route selected |
| Lead Time | TBC — confirmed with the production base at quotation |
How The Part Is Made And Checked
- Inspection — Dimensions, flatness, assembly clearance, 3D scanning, RT, PT, hardness, chemical composition and tensile testing.
- Material Control — Chemical analysis on each melt, sampling from the product body and third party testing for special elements.
- Heat Treatment — Rotors are annealed to 20-35 HRC before machining, then quenched at about 1020 °C to 59-63 HRC.
Quality management is based on ISO 9001 and covers supplier management, raw material inspection, production process control and final inspection. Inspection results are archived and traceable.
Options And Alternatives
Parts are produced to the customer drawing rather than to a fixed catalogue item, so material grade, machining scope, surface treatment and packing are all specified per order. Machining, dimensional control, surface treatment and necessary pre-assembly can be added to the same supply route.
Where another process family would suit the part better — for example a forging in place of a casting for a shock loaded connector — that comparison is raised during drawing review rather than after tooling is committed.
How To Specify This Part
State the working temperature, the fuel and the expected service interval. Heat resistant grades differ mainly in how they behave above 1000 °C, so the operating condition is a more useful starting point for grade selection than a hardness or strength figure.
- Send the drawing with material, quantity, quality standard and target delivery date.
- State the inspection class and the zones it applies to, rather than a general note.
- Confirm the packing requirement and the lifting equipment available at the destination.
Related Guides
Other Parts In This Range
Stainless Steel Vessel Components
Cast and machined stainless vessel bodies
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Rotating and Drive Components
Stainless shafts and drive parts for hygienic equipment
View specifications
Assembled Machinery Components
Multi part stainless assemblies
View specifications
Precision Machined Structural Parts
Close tolerance stainless structures
View specificationsHeat Resistant Furnace Components — Frequently Asked Questions
How is the alloy grade chosen?
The grade is selected against the working temperature and the operating condition. Typical grades are 1.4777, 1.4776, 1.4823 and 1.4855.
What is the typical maximum working temperature?
Around 1050 °C to 1150 °C, depending on the material and the actual cooling and working conditions.
What do you need to prepare a quotation?
Drawings, material, quantity, quality standard and target delivery date.
Which inspection is included?
The inspection scope is agreed during drawing review. Rotors are annealed to 20-35 HRC before machining, then quenched at about 1020 °C to 59-63 HRC.
Get A Quotation For Heat Resistant Furnace Components
Send the drawing and the application. We will confirm the process route, the production base and the inspection scope before quoting.