Description
Ferro Silicon Nitride comprises Si3N4 as its predominant constituent, along with unbound iron, non-nitride ferrosilicon, and a minor blend of additional elements. This compound is categorized into two variants based on its intended application: refractory-oriented Ferro Silicon Nitride and steelmaking-oriented Ferro Silicon Nitride. The refractory-focused Ferro Silicon Nitride is available as an off-white or dark brown powder, while the steelmaking-oriented form presents as an off-white granular material.
The primary utilization of Ferrosilicon Nitride revolves around its role in sealing substances for significant blast furnaces, with a minor portion being employed in iron trench materials and other forms of amorphous refractory compositions. The granular type of Ferro Silicon Nitride, on the other hand, predominantly finds its application in enhancing oriented silicon steel and other steel variants that harness nitrides to bolster their structural integrity.
| 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 | ||||||||||||
