What is X90Crmov18?

X90CRMOV18 is a high -speed tool steel, also known as 1.4112 stainless steel, which belongs to the chromium molybdenum larvae series stainless steel. It contains a large amount of alloy elements such as chromium, molybdenum, and crickets, as well as appropriate amounts of carbon and molybdenum, so it has the characteristics of excellent abrasion resistance, high hardness, corrosion resistance and heat resistance.

What is the chemical composition of X90CRMov18?

Carbon (C): 0.85% -0.95%

Chromium (CR): 17.00% -19.00%

Molybdenum (MO): 0.90% -1.30%

0 (V): 0.07% -0.12%

Manganese (mn): 1.00% Max

Silicon (SI): 1.00% MAX

Phosphor (P): 0.040% MAX

Sulfur (S): 0.030% MAX 

What are the advantages of X90CRMov18?

High hardness: X90CRMOV18 is a high -speed tool steel with a very high hardness and can be used to create high hardness tools.

Abrasion resistance: Because its chemical composition contains a large amount of alloy elements such as molybdenum and crickets, it has good wear resistance and corrosion resistance, which can extend the service life of the tool.

Good processing performance: X90CRMOV18 can change its mechanical performance by heat treatment, have good processing performance, and facilitate cutting and processing. 

High temperature resistance: The high temperature antioxidant performance of X90CRMOV18 is very good and can be used for a long time at high temperature.

What are the disadvantages of X90CRMov18?

Crispy breakthroughs: Due to the high carbon content, improper heating temperature or improper thermal treatment process, it is easy to make the material crispy break. 

Not easy to weld: The welding performance of X90CRMOV18 is poor, and it needs to be preheated and post -heat treatment. 

Easy to produce inter -crystal corrosion: In high temperature and high corrosion environment, X90CRMOV18 is prone to produce inter -corrosion, affecting its service life. 

High price: Because its composition contains a variety of high -value alloy elements, the price of X90CRMOV18 is higher.

How does X90CRMOV18 heat treatment?

X90CRMOV18 needs to go through the following heat treatment steps:

Preheat: Heat the X90CRMOV18 to about 450-500 ° C, and heat the heat for more than 30 minutes to heat it evenly.

Heating: Heat the X90CRMOV18 to about 1050-1100 ° C. The insulation time is determined by the section size, generally 30 minutes/25mm to fully dissolve the carbon and improve the plasticity of steel.

Exercise: The heated X90CRMOV18 is quickly cooled to the room temperature to form martensite tissues to improve the hardness and strength. The quenching medium can choose oil, air or salt bath. The specific selection needs to be determined according to the size and requirements of the workpiece. 

Fire: In order to reduce the internal stress and improvement of hardness and toughness brought by quenching, the quenching X90CRMOV18 was heated to about 150-200 ° C, and the time depends on the requirements.

How does X90CRMov18 welded?

X90CRMOV18 is a high -speed steel with high carbon content and other alloy elements. Therefore, some special measures need to be taken to ensure its welding performance.

Preheating: Before welding X90CRMOV18, preheating treatment is required. Generally, the preheating temperature is 300-400 ° C, which can improve the thermal stability and welding quality of the material. 

Select the appropriate welding material: In order to ensure the quality of welding, you should choose a welding material similar to or the same or the same welding material as X90CRMOV18 for welding. Under normal circumstances, it is recommended to use X20CRMOV12-1 or similar welding materials.

Control welding parameters: Parameters such as welding current, voltage, and welding speed are required during the welding process to ensure the quality of the weld. Try to reduce welding heat during welding to avoid negative effects caused by overheating or over -cold. 

Post -heat treatment: After the welding is completed, post thermal treatment is required to be performed on the welding site. Under normal circumstances, the rear heat treatment temperature is 600-650 ° C, and the time is 1-2 hours. It can reduce welding stress and increase the intensity and toughness of the weld.

What is the manufacturing process of X90CRMov18?

X90CRMOV18 is mainly used in high -quality cutting tools, drills, milling, milling cutters, tools, squeezing molds, stamping molds, and cold pumping parts. 

Making X90CRMOV18 requires the following process: 

Steel smelting: Add raw materials to the furnace for smelting to obtain steel ingots that meet the prescribed chemical ingredients.

Refining: Put the steel ingots into the vacuum furnace, remove gas, mixed and impure substances, and improve the quality of steel.

Steel ingots preheat: Heat the steel ingot to the prescribed temperature so that it is evenly heated. 

Forging: Forging the preheated steel ingots, transform it into the required shape, and improve its density and mechanical properties. 

Heat treatment: By heating, insulation, cooling and other processes, the organizational structure and performance of the X90CRMOV18 are adjusted and improved to meet the required performance requirements.

Excited processing: Excited processing of the X90CRMOV18 after thermal treatment to achieve the specified size accuracy and surface quality requirements.

What are the applications of X90CRMov18?

X90CRMov18 is a kind of high -speed steel, which has excellent abrasion resistance, thermal stability and hardness. Therefore, it is widely used in many fields, including:

Manufacturing cutting tool: X90CRMOV18 can be used to make various cutting tools, such as tools, blades, punching, drills, etc., which can meet occasions with higher hardness and abrasion resistance. 

Manufacturing mold: X90CRMOV18 can also be used to make various molds such as impulses, squeezing molds, stretching molds, and die -casting molds, which can meet occasions with higher requirements for hardness, abrasion resistance and high temperature stability.

Manufacturing bearing and gear: X90CRMOV18 can be used to make parts such as bearing and gears, which can meet occasions with higher wear and fatigue resistance.

Manufacturing medical equipment: X90CRMOV18 can be used to manufacture medical devices, such as surgery knives, syringes, dental devices, etc., which can meet occasions with higher requirements for material purity, corrosion resistance and abrasion resistance.