Ferrochromium nitride powder is a powder ground from ferrochromium nitride. Ferrochromium nitride powder is a common metallurgical material.The main components are chromium (Cr), iron (Fe) and nitrogen (N), and the chemical formula is usually expressed as Cr-Fe-N. Nitrogen exists in the form of interstitial solid solution or nitride (such as Cr2N, CrN), Ferrochromium nitride powder is in powder form with particle size ranging from micrometer to nanometer (50 mesh to 200 mesh), depending on the production process.
Application industries of ferrochrome nitride powder
Metallurgical industry
As an alloy additive, it improves the strength and corrosion resistance of stainless steel and tool steel
Special steel manufacturing: used to produce high nitrogen steel (HNS), which is used in ships, chemical equipment, etc.
Wear-resistant materials
Adding 10-30% ferrochrome nitride powder to the aluminum/copper matrix can reduce the wear rate of the composite material by 50-70%.
3D printing: As a raw material for metal powder bed fusion (SLM), it can manufacture complex structure high temperature resistant parts.
The role of ferrochrome nitride powder in steelmaking
- Strengthen the strength of steel: Nitrogen combines with chromium to form stable nitrides Inhibit grain growth, refine the structure, and improve toughness
- Improve corrosion resistance. Passivate the surface: Nitrogen promotes the formation of dense chromium oxide (Cr₂O₃) on the steel surface, which can enhance the resistance to pitting and intergranular corrosion
- Replace expensive elements. Partially replace nickel (Ni): Reduce the amount of nickel (for example, in 200 series stainless steel, nitrogen replaces part of nickel to reduce costs).
- Deoxidation and purification. Auxiliary deoxidation: The active chromium in the nitrided chromium iron combines with oxygen to form oxides, reducing inclusions in the steel (such as SiO₂, Al₂O₃), and improving the purity of the steel.
Preparation method of ferrochrome nitride by Zhenxin Metallurgy
- Decarburization of raw materials (ferrochrome powder)
- The decarbonized ferrochrome powder is put into a pressing machine and pressed into bricks.
- Put the pressed ferrochrome bricks into the high temperature reactor for shaping
- The pressed ferrochrome bricks are placed in the nitriding furnace and heated to nitriding.
- After nitriding, the ferrochrome is cooled, crushed and ground.
- The production of ferrochrome nitride powder is completed
Ferrochromium Nitride Price in China Market
| Type | Nitrogen content | shape | price (RMB) | Uses |
| ferrochromium nitride (lump) | 5-8%N | 10-50mm | 18,000-25,000yuan/ton | Metallurgical grade, used as steelmaking additive |
| High nitrogen ferrochrome nitride (powder) | 8-12%N | 80-200 mesh | 28,000-40,000yuan/ton | Surface engineering/composite materials |
| Nano-grade ferrochrome nitride powder | 10-15%N | D50<100nm | 80,000-120,000yuan/ton | Special for high-end coating and catalyst |
As a kind of ferroalloy, the price of ferrochrome nitride is higher than that of ferrosilicon, ferrochrome, ferromanganese, etc. The price of ferrochrome nitride per ton is about 10,000 yuan, 1428 USD/Ton. In recent years, with the resurgence of stainless steel products, the price of ferrochrome nitride products has risen again.
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