CR1200/1800HS hot-stamped formed steel is a high-strength, high-plasticity hot-rolled steel plate, which is usually used in the manufacture of stamped and formed parts in industries such as automobiles and electrical appliances. CR1200/1800HS represents the tensile strength of the steel plate (in MPa), which are 1200MPa and 1800MPa respectively.
This kind of steel has good formability and high strength, which can meet the high material requirements of parts in the stamping forming process, and can reduce the weight of parts at the same time. CR1200/1800HS hot stamping formed steel also has excellent weldability and balance of strength and toughness, which can improve the safety and reliability of parts.
What are the characteristics of CR1200/1800HS hot stamping formed steel?
Key features of CR1200/1800HS hot stamped formed steel include:
High strength: The tensile strength of CR1200/1800HS hot stamping formed steel is 1200MPa and 1800MPa respectively, which is higher than ordinary steel.
Excellent formability: CR1200/1800HS hot stamping formed steel has good formability, which can meet the high requirements for parts in the automotive and electrical industries.
Good welding performance: CR1200/1800HS hot stamping formed steel has good weldability and welding strength during welding, which can meet the welding requirements of complex parts.
High corrosion resistance: CR1200/1800HS hot stamping formed steel has high corrosion resistance after pickling treatment, which can meet the needs of parts in harsh environments.
Light weight: CR1200/1800HS hot stamping formed steel has a lower density, which can replace traditional materials and reduce the weight of parts.
Stable high-temperature performance: CR1200/1800HS hot stamping formed steel has good high-temperature strength and stability, and is suitable for applications in high-temperature environments.
What is the chemical composition of CR1200/1800HS hot stamping steel?
Chemical composition (mass fraction) CR1200HS CR1800HS
C 0.15-0.22 0.18-0.22
Si ≤ 0.50 ≤ 0.50
Mn 1.20-1.60 1.20-1.60
P ≤ 0.025 ≤ 0.025
S ≤ 0.010 ≤ 0.010
Al ≥ 0.015 ≥ 0.015
Nb ≤ 0.010 ≤ 0.010
Ti ≤ 0.010 ≤ 0.010
N ≤ 0.006 ≤ 0.006
O ≤ 0.0025 ≤ 0.0025
What are the mechanical properties of CR1200/1800HS hot stamping formed steel?
Mechanical Properties CR1200HS CR1800HS
Tensile strength (MPa) ≥ 1200 ≥ 1800
Yield strength (MPa) ≥ 980 ≥ 1300
Elongation (%) ≥ 10 ≥ 8
Reduction of area (%) ≥ 50 ≥ 45
Among them, the tensile strength indicates the maximum stress that the material bears in the tensile test, the yield strength indicates the stress that the material bears when it begins to undergo plastic deformation, and the elongation indicates the ratio of the elongation that can occur before the material breaks to the original length , and the reduction of area indicates the degree to which the cross-sectional area of the material becomes smaller when it breaks.
What problems should be paid attention to when using CR1200/1800HS hot stamping to form steel?
When using CR1200/1800HS hot stamping to form steel, the following issues need to be paid attention to:
Machinability: CR1200/1800HS hot stamping formed steel has high strength, so appropriate cutting parameters and tools need to be used in the processing process to avoid problems such as cutting edge wear and chip breakage. At the same time, it is also necessary to pay attention to factors such as heating temperature and forming speed during the forming process to ensure the forming performance and quality of the material.
Steel plate storage: During the storage of steel plates, attention should be paid to moisture-proof and corrosion-resistant issues to avoid corrosion and other problems on the steel plate surface.
Coating selection: When using CR1200/1800HS hot stamping to form steel, it is necessary to select a suitable coating material according to specific application requirements to improve the corrosion resistance and wear resistance of the material.
Welding: CR1200/1800HS hot stamping formed steel has high hardness and good strength, so it is necessary to pay attention to the appropriate welding parameters and selection of welding materials during the welding process to avoid problems such as cracks and deformation.
Maintenance: When using CR1200/1800HS hot stamping to form products made of steel, regular maintenance and maintenance are required to keep the product in good condition and prolong its service life.
What is the heat treatment process of CR1200/1800HS hot stamping steel?
The heat treatment process of CR1200/1800HS hot stamping steel generally includes two steps, namely annealing and quenching.
Annealing: First, heat the steel formed by CR1200/1800HS hot stamping to about 850~900°C and keep it for a certain period of time to transform the austenite in the steel into spherical ferrite. Then, the steel is cooled to room temperature to complete the annealing process. Annealing can improve the plasticity and toughness of steel, making it easier to form and process.
Quenching: Heat the annealed CR1200/1800HS hot stamped steel to about 910~950°C and keep it for a certain period of time to transform the ferrite in the steel into austenite. Then, the steel is rapidly cooled to room temperature to complete the quenching process. Quenching increases the hardness and strength of steel, making it more suitable for applications requiring high strength and wear resistance.
It should be noted that the heat treatment process parameters of CR1200/1800HS hot stamping formed steel need to be adjusted according to the specific steel thickness, composition and other factors to ensure the stability and consistency of the heat treatment effect. At the same time, it is also necessary to pay attention to the protection of steel during heat treatment to prevent oxidation, deformation and other problems.
What is the processing technology of CR1200/1800HS hot stamping steel?
CR1200/1800HS hot stamping formed steel has high strength and hardness, so it is necessary to adopt appropriate processing technology and tools during processing to ensure processing effect and processing quality. Generally speaking, the processing technology of CR1200/1800HS hot stamping forming steel includes the following aspects:
Cutting processing: Cutting processing is a common processing method for CR1200/1800HS hot stamping to form steel, which can be carried out by turning, milling, drilling and other methods. During the cutting process, it is necessary to select the appropriate cutting speed, feed rate and depth of cut to ensure that the tool will not wear too quickly, and also pay attention to the cooling and lubrication of the tool to prevent tool damage caused by overheating.
Cold forming processing: CR1200/1800HS hot stamping forming steel can be subjected to a certain degree of cold forming processing, such as cold bending, cold drawing, cold extrusion, etc. In the cold forming process, the forming speed and forming force need to be controlled to avoid cracks or shear deformation on the steel surface.
Hot forming processing: CR1200/1800HS hot stamping forming steel can be hot forming, such as hot rolling, hot extrusion, etc. In the hot forming process, it is necessary to control the forming temperature, forming speed and forming force to avoid problems such as deformation or thermal cracking of the steel.
Welding processing: CR1200/1800HS hot-stamped steel can be welded, and it is necessary to select appropriate welding methods and welding materials, such as argon arc welding, submerged arc welding, laser welding, etc. During the welding process, it is necessary to pay attention to controlling the welding parameters to avoid problems such as welding cracks and deformation.
contact us
Our CR480/950TW+Z 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 CR480/950TW+Z steel products also have good weldability and machinability, which is convenient for customers to carry out secondary processing and assembly.
If you are looking for high-quality CR480/950TW+Z steel products and need high-quality pre-sales, sales and after-sales services, I believe that our company is your best choice. Warmly welcome you to come to consult, negotiate and cooperate!