Core Materials and Technical Specifications of Molten Iron Filters

Feb 19, 2026

Molten iron filters must withstand the erosive flow and thermal shock of high-temperature molten iron; consequently, their material composition and performance specifications directly determine their filtration efficacy.

 

1. Primary Materials: Typically, these filters are fabricated from high-silica glass fiber mesh coated with a uniquely formulated refractory material; certain high-performance products utilize silicon carbide ceramic materials.

 

2. Thermal Resistance: The standard operating temperature range is 1400°C to 1450°C, with a maximum thermal tolerance reaching up to 1700°C. The typical duration of continuous operation within molten iron is no less than 10 minutes.

 

3. Specifications and Dimensions: Common mesh aperture sizes include 1.6×1.6 mm, 2.0×2.0 mm, 2.5×2.5 mm, and others. Available overall dimensions offer a variety of options - such as 50×50 mm, 100×100 mm, and 150×150 mm - which must be selected to appropriately match the specific size of the casting and the design of the gating system.