CR420/780TR transformation-induced plasticity steel is a new type of high-strength, high-plasticity steel, and the TRIP in its name is the abbreviation of Transformation Induced Plasticity (transformation induced plasticity). The main feature of this material is that it undergoes phase transformation under the action of external force, thereby deforming, and achieves the purpose of both high strength and high plasticity. CR420/780TR phase transformation induced plasticity steel is usually composed of low carbon steel, ferrite, bainite, austenite and other phases, and is obtained through heat treatment, cold rolling and other processing techniques. Compared with traditional high-strength steel, CR420/780TR phase transformation induced plasticity steel has higher yield strength, ductility and tensile strength, and has better fatigue resistance and corrosion resistance. The material has broad application prospects in the fields of automobile industry, aerospace, building structure and so on.

What is the chemical composition of CR420/780TR?

The chemical composition of CR420/780TR phase transformation induced plasticity steel mainly includes iron, carbon, silicon, manganese and other elements. Its specific composition may vary due to different preparation processes and uses, but generally its chemical composition is roughly as follows:

Iron (Fe): About 98-99% of the total weight.

Carbon (C): usually controlled between 0.05-0.15% to ensure the strength and plasticity of the material.

Silicon (Si): generally controlled between 1.5-3.0%, in order to increase the strength and corrosion resistance of the material.

Manganese (Mn): generally controlled between 1.5-2.5%, in order to increase the strength and plasticity of the material.

Other elements: such as chromium (Cr), molybdenum (Mo), cobalt (Co), etc. may be added to the material to improve its specific properties.

How about the hardness of CR420/780TR?

CR420/780TR phase transformation induced plasticity steel has high hardness, usually can reach 450-600 HV (Vickers hardness), and has excellent mechanical properties. Among them, the hardness of CR420/780TR phase transformation induced plasticity steel after normalizing treatment is usually between 450-500 HV, and the hardness of CR420/780TR phase transformation induction plasticity steel after quenching treatment can reach 550-600 HV. between.

What are the characteristics of CR420/780TR?

CR420/780TR phase transformation induced plasticity steel has excellent mechanical properties, mainly in the following aspects:

High strength: Phase transformation induced plasticity steel has high strength, its yield strength is generally between 800-1200 MPa, and its tensile strength can reach more than 1500 MPa. This is mainly due to its special microstructure, including a large amount of martensite and retained austenite.

Excellent ductility: phase transformation induced plasticity steel has good ductility, and can maintain a certain degree of plasticity while maintaining high strength. In practical applications, the improvement of ductility helps to reduce the brittleness of materials and improve safety performance.

Excellent cold working performance: phase transformation induced plasticity steel has good cold working performance, and parts of various shapes can be prepared by cold rolling, cold drawing or even cold forging, so as to meet the application requirements of different fields.

Good corrosion resistance: phase change induced plasticity steel has good corrosion resistance, can resist the erosion of acid and alkali and other corrosive media to a certain extent, and maintain a long service life.

What is the processing performance of CR420/780TR?

CR420/780TR phase change induced plasticity steel has good processability and can be processed in various processes, such as cold stamping, deep drawing, bending, shearing and stretching, etc. Specifically, its processing performance is manifested in the following aspects:

Easy to form: phase change induced plasticity steel has good plasticity and ductility, and can be subjected to multiple forming operations to produce parts with complex shapes.

Easy to cut and process: phase transformation induced plasticity steel has moderate hardness, will not cause excessive wear to cutting tools, and can be processed by conventional milling, turning and other processing methods.

Easy to weld: phase change induced plasticity steel can be connected by conventional welding methods, and has good welding performance and corrosion resistance.

Easy heat treatment: The heat treatment process of phase change induced plasticity steel is relatively simple, and can be treated by normalizing or quenching, without special treatment methods such as high temperature heating and high pressure cooling.

What is the heat treatment process of CR420/780TR?

The heat treatment process of CR420/780TR phase transformation induced plasticity steel usually includes two stages of normalizing and quenching.

Normalizing: Heating the phase transformation induced plasticity steel to 800-900°C, holding it for a period of time, and then cooling it to room temperature. The main purpose of normalizing is to decompose the bainite in the steel into martensite, thereby increasing the strength and hardness of the steel.

Quenching: Heating the phase change induced plasticity steel to 800-900°C, holding it for a period of time, and then cooling it down to room temperature rapidly. The main purpose of quenching is to transform the bainite in the steel into martensite, thereby further improving the strength and hardness of the steel.

It should be noted that the heat treatment process of phase transformation induced plasticity steel needs to strictly control parameters such as temperature and time to fully exert the mechanical properties of the steel. In addition, the heat treatment of phase transformation induced plasticity steels needs to be adjusted according to the specific application requirements to obtain the best performance.

What is the use of CR420/780TR?

CR420/780TR phase transformation induced plasticity steel has many uses, mainly including the following aspects:

Automobile manufacturing: phase change induced plasticity steel can be used in the manufacture of automobile body, door, roof, hood and other parts, which can reduce the weight of the vehicle and improve fuel economy and safety performance.

Aerospace: Phase change induced plasticity steel can be used in aerospace manufacturing, such as aircraft fuselage, engine parts, etc., which can improve the strength and corrosion resistance of aircraft, while reducing weight and energy consumption.

Construction engineering: phase change induced plastic steel can be used in the manufacture of steel structures and parts in construction engineering, such as bridges, steel structures, cranes, etc., which can improve the bearing capacity and durability of buildings while reducing the amount of steel used , reduce construction costs.

Other fields: Phase transformation induced plasticity steel can also be used in the manufacture of other mechanical parts, oil, natural gas extraction and transportation and other fields, and has broad application prospects.

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We are pleased to recommend our company’s CR420/780TR steel products to you. As a high-strength, high-wear-resistant, high-precision steel, CR420/780TR has been widely used in many fields, especially in automobile manufacturing, machinery manufacturing, tool manufacturing and other industries.

Our CR420/780TR steel products adopt the most advanced production technology and strict quality control, which ensures the high quality and stability of the products. This product has excellent mechanical properties and heat treatment properties, and can meet customers’ requirements for high strength, high hardness, and high wear resistance of various parts. In addition, our CR420/780TR steel products also have good weldability and machinability, which is convenient for customers to carry out secondary processing and assembly.

In addition to high-quality products, our company also provides comprehensive after-sales services, including technical consultation, technical support, product training, etc. Our technical team has rich experience and professional knowledge, and can provide customers with one-stop solutions and services.

If you are looking for high-quality CR420/780TR steel products, and need high-quality pre-sales, sales, and after-sales services, we believe that our company is your best choice. We warmly welcome you to consult, negotiate and cooperate!