Heat Resistant Cylindrical Components
Tubes, sleeves and cylindrical furnace parts
What This Part Is And Why It Is Made This Way
Cylindrical furnace parts carry hot gas or support the fuel bed, and they distort before they break: an oval tube stops fitting long before the alloy gives up. Wall thickness uniformity is the property that keeps them in service.
Cylindrical components are cast in heat resistant grades and inspected for dimensions and deformation before delivery.
What You Get From This Route
Uniform wall thickness through controlled casting routes.
Heat resistant alloys rated for continuous high temperature duty.
Repeat supply from the same production base keeps dimensions consistent.
Application Scenarios
- Furnace gas duct components
- Heat resistant sleeves and liners
- Combustion chamber tubular parts
- Thermal equipment cylindrical internals
Who It Is For
- Furnace and boiler manufacturers
- Plants replacing distorted cylindrical internals
- Equipment refurbishment contractors
Technical Features
- Heat resistant grades 1.4777 / 1.4776 / 1.4823 / 1.4855
- Lost wax, lost foam and shell moulding casting
- Dimensional inspection including deformation checks
- Repeat supply from a stable base
What Buyers Run Into Without This Specification
- Tubes go oval in service and can no longer be replaced without cutting.
- Wall thickness varies and thin sections burn through first.
- Replacement parts from a new supplier do not match the installed dimensions.
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
Give the installed length and the fit at both ends, and say whether the part is replaced during a running shutdown. Parts that must slide into place need tighter control on straightness than the drawing tolerance alone implies.
- 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
View specifications
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 Cylindrical Components — Frequently Asked Questions
Are these parts inspected for deformation?
Dimensional inspection including deformation evaluation is part of the standard route for high alloy castings.
Which alloys suit continuous high temperature service?
1.4777, 1.4776, 1.4823 and 1.4855 are used for heat resistant service, with typical maximum working temperature around 1050 °C to 1150 °C.
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 Cylindrical Components
Send the drawing and the application. We will confirm the process route, the production base and the inspection scope before quoting.