ZG40Cr25Ni20Si2 Boiler Hoods, Grate Bars, Grates, and Industrial Furnace Accessories with Spectral Testing — Material Guaranteed

ZG40Cr25Ni20Si2 Boiler Hoods, Grate Bars, Grates, and Industrial Furnace Accessories with Spectral Testing — Material Guaranteed

For industrial furnaces and boiler equipment to operate stably and durably, the material quality of core high-temperature accessories directly determines equipment maintenance frequency and production efficiency. ZG40Cr25Ni20Si2 (commonly known as 2520), a high-chromium nickel austritic heat-resistant cast steel, has become the preferred material for core accessories in boilers and incinerator furnaces, thanks to its comprehensive excellent performance in high-temperature resistance, corrosion resistance, and creep resistance.

ZG40Cr25Ni20Si2 boiler hoods, grate bars, grates, and complete industrial furnace accessories are integrally precision-cast, suitable for severe operating conditions such as circulating fluidized bed boilers, waste incinerators, biomass boilers, and various industrial heat treatment furnaces.

Long-term service temperature can reach 1050–1150°C, with short-term tolerance of 1300°C peak high temperatures. Chromium, nickel, and silicon elements work synergistically to form a dense oxide protective film on the casting surface, effectively resisting high-temperature flue gas sulfuration and chloride corrosion, preventing oxidation scaling, and resisting furnace slag material erosion wear. Facing repeated thermal cycling from boiler startup and shutdown, thermal shock resistance is excellent, resistant to cracking and fracture. Under high-temperature heavy-load conditions, creep resistance prevents bending and collapse, ensuring uniform furnace air distribution and complete fuel combustion, reducing downtime losses from frequent accessory replacement.

Accessories cover bell-type boiler hoods, mushroom hoods, various specifications of grate bars, and reciprocating/chain grate components. Standard stock is abundant, and we also support non-standard customization based on drawings or samples, with dimensions and structures adjusted as needed to match different tonnage boilers and furnace equipment renovation and spare parts replacement needs.

Material authenticity guaranteed, refusal to pass off inferior products. Every batch of products supports spectral testing, with spectral material reports issued, strictly controlling the ranges of chromium, nickel, silicon, and other alloy elements. We ensure material authenticity and traceability, avoiding early burnout and cracking failure caused by material alloy reduction, reducing later operation and maintenance costs from the source.