Qingyun Hongsheng Machinery Parts Co., Ltd. is one of the most reliable manufacturers and suppliers of 1.4776 grate bar heat resistant cast steel grate for biomass in China. We warmly welcome you to wholesale high quality 1.4776 grate bar heat resistant cast steel grate for biomass at low price from our factory. If you have any enquiry about quotation, please feel free to email us.
1.4776 (GX40CrSi29) grate bar is high chromium silicon heat-resistant casting steel compliant with EN 10295 standard. Designed for industrial boilers, biomass combustion furnaces and waste incineration equipment. It delivers outstanding high-temperature oxidation resistance, thermal shock resistance and wear resistance, widely exported to Southeast Asia, Africa and Middle East markets for burning coal, palm kernel shell, rice husk, wood chips and other solid fuels. Our cast grate bars adopt precision casting process, stable dimension, less deformation under cyclic high temperature, greatly reducing boiler downtime and replacement frequency.
Products Description
Core Material & Technical Parameters
Material Grade: 1.4776 (GX40CrSi29), Heat-resistant cast steel
Standard: EN 10295
Chemical Composition (wt%): C:0.30–0.50, Cr:27.0–30.0, Si:1.0–2.5, Mn≤1.0, Ni≤1.0, P≤0.04, S≤0.03
Max Continuous Working Temp**: Up to 950℃
Process: Lost foam casting / shell molding casting
Customization: Custom length, width, thickness, tooth profile & installation notch according to drawings
Inspection: Chemical composition test, hardness inspection, dimensional check before shipment
Key Advantages
1. Excellent High-Temp Oxidation & Anti-Corrosion
High chromium & silicon alloy formula forms dense protective oxide layer at high temperature. Resists sulfur-containing flue gas corrosion and high-temperature oxidation, suitable for long time operation in biomass and coal-fired boilers. Perfect fit for high-temperature, dusty combustion environment in Africa, Southeast Asia and Middle East.
2. Strong Thermal Shock Resistance, Not Easy to Crack
Resist repeated heating & cooling cycles. Less prone to fracture or warping under thermal cycling, solves common pain points: grate bending, cracking, burn-out in solid fuel boilers.
3. Good Abrasion Resistance & Long Service Life
Resist abrasive wear from ash and fuel particles. Longer service life than ordinary cast iron grates, lower your spare parts replacement cost and boiler maintenance expense.
4. Precise Casting & Easy Installation
Precision casting ensures consistent dimensions. Smooth assembly, good air permeability for uniform combustion. Suitable for chain grate, reciprocating grate and fixed grate boilers.
Application Scenarios
Biomass boilers, coal-fired industrial boilers, palm waste incinerator, rice husk furnace, solid waste combustion equipment. Popular for boiler contractors, power plants, sugar mills, palm oil factories across Southeast Asia, Africa and the Middle East.
Custom Service
We accept OEM & ODM based on your technical drawings. Provide material test certificate, casting process selection and technical support. Bulk order with stable delivery.
Products Display
why choose us
Quick response Products with high cost performance Products with high cost performance
why choose our products
1. 20 years of experience in casting cast iron plate, quality assurance, timely delivery
2. Perfect machining and inspection equipment can directly provide finished parts and meet the inspection requirements of customers
3. It has independent import and export rights and can export products to all parts of the world
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