Description of Ferrosilicon Nitride:
Ferro Silicon Nitride is a mixture of Si3N4 as the main component, accompanied by free iron, non-nitride ferrosilicon and a small amount of other components. Ferrosilicon nitride is divided into two types according to its use: ferrosilicon nitride for refractory materials and ferrosilicon nitride for steelmaking. Ferro-silicon nitride for refractory materials is an off-white or dark brown powder, and ferro-silicon nitride for steel-making is an off-white granular material.
Ferrosilicon nitride is mainly used in the plugging mud of large blast furnaces, and a small amount is used in iron trench materials or other amorphous refractory materials; Granular ferrosilicon nitride is mainly used for oriented silicon steel or other steel grades that use nitrides to improve strength.
Technical Parameter of Ferrosilicon Nitride:
For refractories:
| Type | Brand | Chemical Composition/wt% | ||||||
| Si3N4 | TSi | TN | Fe | Al | Ca | H2O | ||
| Ordinary ferrosilicon nitride | NPFeSiN-A | 75~80 | 49~51 | 30~32 | 13~15 | ≤1.5 | ≤1.0 | ≤0.1 |
| NPFeSiN-B | 70~75 | 48~50 | 28~30 | 14~17 | ||||
| Stable ferrosilicon nitride | NWFeSiN | 68~75 | 45~48 | 27~30 | 11~14 | |||
| Specification: the particle size of ordinary ferrosilicon nitride is 200 mesh, that of stable ferrosilicon nitride is 325 mesh, and the passing rate is 90% | ||||||||
For steelmaking：
| Type | Brand | Chemical Composition/wt% | ||||||||||
| TSi | TN | Fe | Al | Ca | P | S | Cr | Mn | Ti | C | ||
| Normal | LPFeSiN | 49~51 | 30~32 | 13~15 | ≤1.5 | ≤1.0 | ≤0.05 | ≤0.02 | / | / | / | ≤0.1 |
| High Purity | LGFeSiN | 49~51 | 30~32 | 13~15 | ≤0.1 | ≤0.1 | ≤0.05 | ≤0.02 | ≤0.1 | ≤0.1 | ≤0.05 | ≤0.1 |
| Specification：10~50mm/5~20mm | ||||||||||||
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