Grate Spare Parts
Product introduction
The partner factory is equipped with two Danish Disha casting production lines. As a supplier, we can provide a complete set of spare parts for boiler grates. Various materials can be customized according to customer requirements. The products meet the American ANSI/ASTM standard.
Material: HT200, HT250, RTSi5, RQTSi5, RTCr16, RTCr, RTCr2, RTCr5, RTCr20, ZG35Cr24Ni4, RTCr2Si4Mo
Grate bars and grate spares can be supplied in several cast iron and heat-resistant alloy grades, and the grade follows the measured temperature at the mounting position and the fuel that is burned. The table compares the grades we commonly supply; it is the starting point for selection, and the partner factory then supplies the part against the grate model, the drawing and the measured size of the old part.
Materials, temperature limits and suitable fuels
| Material | Advantages | Disadvantages | Temperature resistance | Applicable fuel | Applicable grate |
|---|---|---|---|---|---|
| HT200 | Simple process, low cost | Poor heat resistance and corrosion resistance | 480℃ | Low calorific value coal | Chain belt grate |
| HT250 | High strength, wear resistant and heat resistant | Complex casting process, high cost | 520℃ | Low calorific value coal | Boiler grates of all types |
| RTCr | High oxidation resistance, good volume stability | Poor toughness | 550℃ | Low calorific value coal | Chain belt grate |
| RTCr2 | High oxidation resistance, good volume stability | Poor toughness | 600℃ | High calorific value coal, biomass | Chain grates of all types, hot water boilers and reciprocating grates |
| RTCr5 | Good oxidation resistance and corrosion resistance | Poor toughness | 700℃ | High calorific value coal, biomass | Large grates |
| RTCr16 | Good oxidation resistance and corrosion resistance | Poor toughness | 900℃ | Various high calorific value coals, biomass | Boiler grates of all types |
| RTSi5 | Good heat resistance, reduced brittleness | Poor resistance to mechanical and thermal shock | 800℃ | High calorific value coal, biomass | Boiler grates of all types |
| RQTSi5 | Good heat resistance, reduced brittleness | Poor corrosion resistance | 850℃ | High calorific value coal, biomass | Boiler grates of all types |
| RTCr3Si2 | High strength at high temperature, high oxidation resistance | High brittleness at room temperature | 900℃ | High calorific value coal, biomass | Boiler grates of all types |
| RTCr20 | Oxidation and wear resistant, higher hot strength and creep resistance than RTCr16 | Lower toughness, demanding casting | 950℃ | Various high calorific value coals, biomass | Boiler grates of all types |
| ZG35Cr24Ni4 | Heat-resisting steel casting, for temperatures above the iron grades | Complex casting process, high cost | 1150℃ | Various coals, biomass | Boiler grates of all types |
| RTQSi2 | High strength, wear resistant, no deformation, low cost | Complex casting process | 1200℃ | Various coals, biomass | Boiler grates of all types |
| ZG40CR24 | Wear resistant, heat resistant and high temperature resistant, no oxidation over long service | Extremely high production cost | 1250℃ | Various coals, biomass | Boiler grates of all types |
| ZGCr25Ni | Wear resistant, heat resistant and high temperature resistant, no oxidation over long service | Extremely high production cost | 1350℃ | Various coals, biomass | Boiler grates of all types |
| RTCr2Si4Mo | Wear resistant, heat resistant and high temperature resistant, no oxidation over long service | Extremely high production cost | 1500℃ | Various coals, biomass | Boiler grates of all types |
Order of selection
- Confirm where the part sits in the grate and the temperature it works at.
- Pick the suitable grate type and grade from the fuel, coal or biomass.
- Confirm the supply against the grate model, the drawing and the measured size of the old part.
Parts of one grate can be quoted together, and the grade of the delivered parts is confirmed with the partner factory on the order.
Sub-products
- Travelling Chain Grate Spare Parts — grate bars, side seals, splints, rollers and bearings for chain grates
- Cross-Beam Type Grate Spare Parts — cross beams, grate bars, side seals and bearings for cross-beam grates
- Heavy Big Flake Type Spare Parts — heavy flake grate bars, splints, rollers and side seals
- Flake Type Chain Grate Spare Parts — flake grate bars, liner plates, bolts and chain components
- Reciprocating Grate Spare Parts — moving/fixed grate bars, side seals and connecting rods
For a quotation, send the grate model, the part drawing or the measured dimensions of the old part.
