Product Specifications
Product:
high temperature resistance, wear resistance, corrosion resistance and extended life furnace grate castings
Model NO:
Customized (matched with industrial furnace models)
Machining tolerance:
+/-0.01mm
Application:
Industrial Furnace, Boiler, Waste Incinerator, Biomass Furnace Use
Material:
Heat-Resistant Alloy Steel, Cr Mo Alloy Steel, High Chromium Cast Iron, Nickel-Chromium Alloy (Cr25Ni20, Cr18Ni9)
Surface Treatment:
High-Temperature Anti-Oxidation Coating, Shot Blasting, Heat Treatment, Without Processing
Manufacturing Process:
Casting, Sand Casting, Precision Casting, Heat Treatment (Solution Annealing, Aging), CNC Machining
Plant:
We Have Our Own Factory
After-sales Service:
Support in 24h, on-site installation and maintenance guidance available
Certification:
CE, ISO 9001:2000
Standard:
ASME, JIS, GB, ASTM A297, DIN 17480
Inspection:
Ut, metallographic inspection, hardness test, high-temperature oxidation test, creep test, tensile test, etc
Application:
used in industrial boilers, waste incinerators, biomass furnaces, thermal power plant furnaces, metallurgical furnaces, for supporting and conveying fuel (coal, biomass, waste) during combustion.
Color:
to Order (Natural Metal Color, High-Temperature Anti-Oxidation Coating Color)
Delivery Time:
7 - 30 days/ negotiable (according to product size and complexity)
Transport Package:
Steel Frame, Wooden Cases, Anti-Collision and Anti-Rust Packaging
Advantage:
Rich Foundry Experience, Best Service, Professional Team, Strict Quality Control, Excellent High-Temperature Resistance, Strong Wear & Corrosion Resistance, Stable Structure, Long Service Life, Customizable for Furnace Models.
Furnace Grate Castings Composition
Cr25Ni20: 0.20%-0.30% carbon content, 24%-26% chromium content, 19%-22% nickel content, austenitic heat-resistant alloy, applicable to 1000-1200℃; ZG40Cr25Ni20 (HK40): 0.35%-0.45% carbon content, 24%-26% chromium content, 19%-22% nickel content, high-temperature creep resistance, suitable for high-temperature furnace grates; Cr Mo Alloy Steel (ZG30Cr5Mo): 0.25%-0.35% carbon content, 4.0%-6.0% chromium content, 0.2%-0.8% molybdenum content, balanced high-temperature resistance and toughness; High Chromium Cast Iron (HC250): 2.0%-2.5% carbon content, 24%-26% chromium content, excellent wear resistance, suitable for low-temperature furnace grates with high wear.
Features
Excellent high-temperature resistance, able to work stably for a long time under 800-1200℃ high-temperature environment, no deformation or cracking under long-term high-temperature exposure. Strong wear resistance, able to withstand friction and wear from fuel (coal, biomass, waste) and ash during combustion. Good corrosion resistance, able to resist erosion from high-temperature flue gas, sulfur dioxide and other harmful gases. High creep resistance and thermal fatigue resistance, adapting to alternating high and low temperature working conditions of furnaces. Stable structure, after professional heat treatment, the internal structure is uniform, ensuring load-bearing capacity and service life. Customizable specifications and shapes, perfectly matching various industrial furnace models and installation requirements.
Limitations
High-temperature resistant materials (such as nickel-chromium alloy) have high production costs. Welding performance is poor, welding requires professional high-temperature welding technology and post-heat treatment to avoid cracking. High chromium cast iron models have low toughness, not suitable for high-impact working conditions. Long-term work in ultra-high temperature (exceeding 1200℃) will reduce service life.
Applicable Scenarios
Industrial Boilers: coal-fired boiler grate bars, grate segments, grate supports. Waste Incinerators: waste incinerator grate plates, moving grate components, ash discharge grate parts. Biomass Furnaces: biomass boiler grate castings, suitable for burning straw, wood chips and other biomass fuels. Thermal Power Plants: boiler furnace grates, high-temperature flue gas grate components. Metallurgical Furnaces: metallurgical heating furnace grate parts, suitable for high-temperature heating scenarios. Other Industrial Furnaces: chemical industry furnaces, cement plant rotary kiln grate parts.
Reference
| Material |
Standard |
Nominal Chemical Composition (%) |
C |
Si |
Mn |
Cr |
Ni |
Mo |
S |
P |
Max Working Temp (℃) |
Applicable Furnace Type |
| Cr25Ni20 |
GB/T 12230 |
- |
≤0.20 |
≤1.00 |
≤2.00 |
24-26 |
19-22 |
—— |
≤0.03 |
≤0.035 |
1200 |
High-Temperature Industrial Furnaces |
| ZG40Cr25Ni20 (HK40) |
ASTM A297 |
- |
0.35-0.45 |
1.5-2.5 |
≤2.00 |
24-26 |
19-22 |
—— |
≤0.04 |
≤0.04 |
1100 |
Thermal Power Plant Boilers |
| ZG30Cr5Mo |
GB/T 11352 |
- |
0.25-0.35 |
0.4-1.0 |
0.5-1.2 |
4.0-6.0 |
—— |
0.2-0.8 |
≤0.04 |
≤0.04 |
750 |
Industrial Boilers, Biomass Furnaces |
| HC250 |
ASTM A532 |
- |
2.0-2.5 |
0.5-1.0 |
0.5-1.0 |
24-26 |
—— |
0.3-0.5 |
≤0.04 |
≤0.04 |
800 |
Waste Incinerators, Low-Temp Furnaces |
| ZG45Cr2Mo |
GB/T 11352 |
- |
0.40-0.48 |
0.8-1.2 |
0.5-1.2 |
1.7-2.0 |
—— |
0.8-1.2 |
≤0.04 |
≤0.04 |
700 |
Small Industrial Furnaces |
| FMU-29 |
Custom |
- |
0.25-0.45 |
0.3-1.0 |
0.6-1.5 |
6.0-8.0 |
—— |
0.2-0.4 |
≤0.04 |
≤0.04 |
850 |
Biomass Furnaces |
FAQ :
Q: Can you manufacture Customization furnace grate castings?
A: Yes, we can. We can produce both standard and special products. Our can make them according to your drawings and samples, and recommend suitable materials based on your furnace type and working temperature.
Q: Do you provide free samples?
A: Yes, usually we provide free small-size samples for testing under the condition of freight paid by customer.
Q: What is the Warranty for our products ?
A: If any quality problems on our side occurred in this period , we will take on the shipping cost and replacement.
Q: Can the products be customized as our need, such as put on our logo?
A: Surely our products can be customized as your need, Put on your logo is also available.
Q: What information do we need to provide to you in order to confirm our parts order?
A: provide us your drawings or detailed specifications, furnace model, working temperature and fuel type (coal, biomass, waste) for our technical staff could make the drawing and recommend suitable materials.
Q: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery, including high-temperature oxidation test, creep test, hardness test and metallographic inspection.
Q: Transportation?
A: Transported by DHL, UPS, EMS, Fedex, Air freight, Sea freight; large-size grate castings are packaged with steel frame and anti-rust coating to avoid deformation and rust during transportation.
Q: Do you support drop shipping?
A: Yes, your drop shipping is available.
Q: What kind of materials are using for the products?
A: We supply all kinds of heat-resistant and wear-resistant materials for furnace grate castings, including Cr25Ni20, ZG40Cr25Ni20, Cr Mo alloy steel, high chromium cast iron (HC250), to meet different furnace working temperature and wear requirements.
Q: What kinds of products do you offer?
A: We mainly produce various furnace grate castings, such as furnace grate bars, grate segments, grate supports, moving grate components, ash discharge grate parts, suitable for different types of industrial furnaces.
Our Advantages
- 20-year Foundry Operation Experience, specialized in furnace grate castings R&D and production.
- Friendly & High Efficient Technical & Commercial Communication, providing professional material selection guidance based on furnace type and working conditions.
- Professional Export Practices: Exported to +60 Overseas Countries, with rich experience in furnace grate castings customization and transportation.
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