Ultrapure high nitrogen manganese nitride product advantages

Manganese  nitride  intermediate  alloy  is widely  used  in  the steel  industry,  mainly  used  in  high-strength manganese nitrogenous steel. At present, a large number of nitrogenous steel research results show that: The introduction of nitrogen in steel can effectively replace the role of nickel, improve the strength and strengthen  the  corrosion   resistance  of  steel,  while  the   introduction   of  manganese  can  increase  the solubility and stability of nitrogen in steel, so the manganese nitride intermediate alloy plays an important role in the smelting of nitrogen-containing alloy steel. At present, the market demand of special alloy steel, high  strength  stainless  steel,  high  nitrogen  steel  and  other  products  is  expanding  rapidly,  manganese nitride   has   a   broad   market   prospect.   It   is   important   to   develop   high   quality   manganese   nitride

intermediate alloys.

At present, the nitrogen content of manganese nitride in the market is generally 5.5%-7.5%, in response to the  demand trend  of  high  nitrogen  manganese  nitride  in  the  steel  industry,  our  company  developed  a nitrogen content of more than 10% of high nitrogen manganese nitride, while in the product composition consistency, impurity content and other aspects of the breakthrough, specifically for the following three

characteristics of the advantages:

1. High nitrogen content: the high nitrogen manganese nitride content produced by our company is higher

than 10%, up to 13%;

2. high uniformity: the high nitrogen manganese nitride content produced by our company is consistent,

and the nitrogen content can fluctuate within the range of   ±0.25%;

3. low oxygen content: The flake, powder manganese nitride products produced by our company have low

impurity content, in which the oxygen content can be less than 0.10%.

In  view  of  the  above  three  unique  advantages  in  terms  of  characterization,  the  use  of  high  nitrogen manganese  nitride  produced  by  our  company  has  corresponding  comprehensive  advantages  compared with other manganese nitride products currently supplied in the market (such as ferric manganese nitride, medium  and  low  nitrogen  manganese  nitride,  silicon  manganese  nitride,  etc.),  which  are  reflected  as

follows:

1.alloy cost advantage: Compared with ferric manganese nitride and medium and low nitrogen manganese nitride, the use of high nitrogen manganese nitride can greatly reduce the amount of added, usually the nitrogen  content  of  ferric  manganese  nitride  is  4%-6%,  and  the  nitrogen  content  of  medium  and  low nitrogen manganese nitride is 5.5%-7.5%, relatively speaking, under the same conditions, the equivalent amount  of   nitrogen  content  is  obtained  in  the   liquid  steel.  The   addition  amounts  of   high  nitrogen manganese  nitride were 30%-55% of ferromanganese  nitride  and 45%-70% of  middle and  low  nitrogen

manganese nitride, respectively.

2.adding  alloy  process  control  advantages: the  nitriding  alloy  supplied  by  the  market  generally  has  the disadvantage of uneven nitrogen content, and the deviation range is above   ±1%. The use of manganese nitride produced by our company, based on its highly consistent characteristics, is more conducive to the accurate control of the addition amount. Under the constant amount of addition conditions, it is easy to obtain  uniform  and  consistent  nitrogen  content  of  molten  steel,  and  it  is  not  necessary  to  adjust  the addition amount accordingly due to the uneven nitrogen content of alloy, Thus, the precise control of the amount of addition can be achieved. The stable process also has the corresponding promoting effect on

the production efficiency;

3. effectively reduce the introduction of impurities, improve the yield of alloy in liquid steel: due to the particularity and superiority of the production process, our company did not introduce new impurities in the production of manganese nitride tablets, powder process, especially in oxygen control, oxygen removal technology has made a breakthrough. At present, the oxygen content of products supplied by the market is generally between 1.0% and 3.5%, too high impurity content will affect the purity of molten steel and then affect the quality of the final steel products, and oxygen into the liquid steel may increase the difficulty of deoxygenation, but also reduce the yield of alloy, such as high oxygen content of ferric manganese nitride, manganese  nitride,  manganese  silicon  nitride  added  to  the  liquid  steel.  The  yield  of  manganese  and

nitrogen will be reduced simultaneously.

4, the advantages of high nitrogen content and low oxygen content to achieve higher alloy yield, the use of high nitrogen manganese nitride produced by our company as a steelmaking additive, compared with ferric manganese nitride and low nitrogen manganese nitride can be as low as 25%-50% and 40%-65% of the addition  amount; Although  manganese  silicon  nitride  has  a  high  nitrogen  content,  it  introduces  a  high content of impurity silicon, and the nitrogen recovery rate added to the liquid steel is also very low (as low as 30%). In addition, manganese silicon nitride added to the liquid steel will react violently and dramatically increase the temperature of the liquid steel, which will affect the service life of heat-resistant materials and

increase additional costs.

The following compares the basic situation of ferromanganese nitride, medium and low manganese nitride,manganese  silicon  nitride,  and  high  nitrogen  manganese  nitride  in  the  use  process.Among  them,  the standard addition amount of ferromanganese nitride (nitrogen content 5%) is m, and the standard price of ferromanganese  nitride  is  n,  and  the  advantages  and  disadvantages  of  its  cost  and  performance  are

comprehensively compared.    The list is as follows: