What is the size standard for foundry sand

Foundry sand is mainly classified according to its particle size and chemical composition.

Particle size standard

According to the particle size of the sand, foundry sand can be divided into the following standards:

-Coarse sand: 0.6mm-2.36mm;

– Medium sand: 0.2mm-0.6mm;

– Fine sand: 0.075mm-0.2mm;

– Ultrafine sand: less than 0.075mm.

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