Silicon nitride powder of gray color is widely applied in steel-smelting , refractory , bbrasion rubber , plastic , ceramic and high temperature sealing industries.

Feature:

1. Excellent properties of corrosion resistance thermal conductivity , heat shock resistance and abrasion resistance.

2. Good anti-division property and stable chemical composition

3. Low thermal expansion coefficient , high conductivity and strength

4. Good oxidation resistance at high temperature

Application:

As a new material of modern industry , silicon nitride powder is widely applied as non-ferrous metallurgy: Protective coating & film due to its excellent properties of anti-corrosion and non-infiltration.

Iron & steel smelting:

1. In steel industry , silicon nitride coating can efficiently solve the oxidation loss of billet during heat-treatment process

2. For furnace body or electric furnace , silicon nitride tapping hole clay can seal the hole of blast furnace well and be easily cut.

3. As additive of notrogen during production of alloy steel , especially for producing HRB 400 rebar.