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Classification, Performance and Applications of Mainstream Grate Plate Materials
- By Alex Hu
- 31/07/2026
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Classification, Performance and Applications of Mainstream Grate Plate Materials Core requirements for grate plates: high-temperature resistance, thermal shock resistance, wear resistance, oxidation resistance and resistance to ash and slag corrosion. Listed below in order of most common use in industrial boilers: I. Standard cast iron types (the preferred choice for small-scale, low-temperature, atmospheric-pressure coal-fired boilers; offering the best value for money) 1. Grey cast iron (HT150/HT200) Characteristics: Lowest cost, simple casting, good thermal conductivit..
How to select the appropriate grate bar material based on actual requirements?
- By Alex Hu
- 31/07/2026
- 0 comments
A comprehensive, practical approach to selecting grate bar materials Core selection logic: combustion temperature > fuel type (sulphur, ash, corrosion) > stress conditions of the grate structure > budget; simply compare these factors step by step to make your selection. I. Step 1: Determine the long-term operating temperature of the furnace chamber (the most critical indicator) The primary cause of grate failure: high-temperature oxidation and burnout, and cracking due to thermal expansion and contraction. Selection criteria based on temperature: Operating temperature <..