Silicon Manganese Nitride Lump Metal S3n4 Mn5n2

Definition of Silicon Manganese Nitride:
Silicon manganese nitride is mainly composed of S3N4 and Mn5N2. Accompanied by a mixture of non-silicon iron nitride, non-silicon manganese and a small amount of other ingredients. The granular product of silicon manganese nitride is off-white.

The Main Components of Silicon Manganese Nitride:
The median value of N is taken as 28%, the median value of Si is taken as 41.5%, 3% of the binder and aeration. Therefore, the basic ingredients (%) of the silicon manganese synthesis raw materials are: Si: 60. 1%, Mn ≦ 21. 7%, Fe ≦ 18.8%.

According to empirical data of large-scale industrial production, the conversion rate of Si to Si3N4 is generally 90 ~ 100%, and the maximum amount of Mn combined nitrogen is 9%. The main components of silicon manganese nitride are calculated as follows:

Considering the differences in the ingredients of different manufacturers and the differences in conversion rates, the FeMnSiN-A, FeMnSiN-B silicon content is set to 38.0 to 43.0, the nitrogen content is set to 26.0 to 30.0, and the manganese content is set to 10.0 to 15.0. FeMnSiN-C is relaxed on the basis of the above two grades and is an entry-level product for the production of silicon manganese nitride. The iron element in the product is not specified. For steelmaking, iron is a beneficial element, which is expressed in the standard as "surplus".

Parameter Index of Silicon Manganese Nitride:

Application of Silicon Manganese Nitride:

Silicon manganese nitride is mainly used as a nitrogenating agent for oriented silicon steel, as a nitrogenating agent for high-strength steels (such as HRB400), and also as a nitrogenating agent for casting.

Nitrogen is a strong element that forms and stabilizes austenite, and plays an important role in the solid solution and precipitation of carbonitrides in microalloyed steels.