What kind of steel is CR950/1300HS?
CR950/1300HS is a high strength steel commonly used in manufacturing and construction applications. It is a cold-rolled dual-phase steel with a high yield strength of at least 950 megapascals (MPa) and a tensile strength of up to 1300 MPa.
The “CR” in CR950/1300HS stands for “Cold Rolled”, indicating that this steel has been processed through a cold rolling mill to obtain its final properties. “HS” stands for “high strength,” indicating that the steel has a higher strength-to-weight ratio than conventional steels.
Known for its excellent formability, weldability and fatigue resistance, this steel is used in structural and safety components in the automotive industry. It is also used in applications such as buildings and bridge construction, heavy machinery and pressure vessels.
What is the chemical composition of CR950/1300HS?
Carbon (C): 0.14%
Silicon (Si): 0.01%
Manganese (Mn): 2.00%
Phosphorus (P): 0.005%
Sulfur (S): 0.005%
Chromium (Cr): 0.10%
Molybdenum (Mo): 0.10%
What is the performance of CR950/1300HS?
Yield strength: at least 950 megapascals (MPa)
Tensile strength: up to 1300 megapascals (MPa)
Elongation: at least 10%
Elongation at break: at least 30%
Impact toughness: at least 80 Joules/square centimeter (J/cm²)
Hardness: at least 300Hv
CR950/1300HS is a dual-phase steel with high strength and excellent formability, weldability and fatigue resistance, widely used in structural and safety components in the automotive industry, as well as building and bridge construction, heavy machinery, pressure vessels and other fields.
What are the characteristics of CR950/1300HS hot stamping steel?
The characteristics of CR950/1300HS hot stamping forming steel include:
High strength: CR950/1300HS hot stamping forming steel has high strength, which can meet the demand for high strength materials in the automotive industry and other fields.
Excellent formability: CR950/1300HS hot stamping forming steel has good formability during processing and can be easily processed into various shapes.
Excellent weldability: CR950/1300HS hot stamping forming steel has excellent weldability and can be processed by various welding methods.
Excellent fatigue life: CR950/1300HS hot stamping forming steel has excellent fatigue life and can be used for a long time under heavy load and high stress conditions.
Good surface quality: CR950/1300HS hot stamping forming steel is not prone to surface defects such as wrinkles and oxidation during processing, so it has a high surface quality.
What are the disadvantages of CR950/1300HS?
Expensive: Compared with ordinary steel and low-strength steel, CR950/1300HS is more expensive.
Low plasticity: Compared with some other high strength steels, CR950/1300HS has relatively low plasticity, which may affect its formability.
Limited Corrosion Resistance: CR950/1300HS has relatively poor corrosion resistance and measures need to be taken to prevent corrosion.
How is CR950/1300HS hot stamping steel hot stamped?
CR950/1300HS hot stamping steel is usually processed by hot stamping process, and the processing process is as follows:
Heating: First, heat the steel plate to an appropriate temperature, generally above 900°C.
Preforming: The heated steel plate is preformed on a preforming machine for subsequent stamping.
Cooling: The preformed steel plate is cooled by water to enhance the strength and hardness of the steel plate.
Stamping forming: hot stamping machine is used for forming processing, and the steel plate is stamped into parts of various shapes according to requirements.
Annealing: The formed part is annealed to remove residual stresses while increasing the toughness and ductility of the material.
Galvanizing or painting: Finally, surface treatment such as galvanizing or painting is carried out on the formed parts to improve their corrosion resistance and aesthetics.
How is CR950/1300HS hot stamping steel made?
The manufacture of CR950/1300HS hot stamping steel is usually divided into the following steps:
Raw material preparation: firstly, it is necessary to select an appropriate steel billet as the raw material, and generally use low-alloy high-strength hot-rolled steel plate as the basic material.
Smelting: Put the selected raw materials into the blast furnace for smelting, and adjust the composition and content by adding an appropriate amount of alloying elements to achieve the required chemical composition and performance.
Continuous casting: Through the continuous casting process, the smelted molten steel is cast into slabs for subsequent rolling processing.
Rolling: Using hot rolling process, the slab is rolled and pressed to the required thickness and width to form a hot-rolled steel plate.
Pickling: The rolled steel plate needs to be pickled to remove impurities such as scale and rust on the surface, so as to ensure the flatness and quality of the steel plate surface.
Annealing: Annealing the steel plate after pickling to make its structure more uniform and improve the toughness and ductility of the material.
Cold rolling: cold-rolling the annealed hot-rolled steel sheet to obtain a finer grain structure and improve its mechanical properties.
Quenching and tempering: After cold rolling, the steel plate needs to be quenched and tempered to achieve the required strength and toughness.
Spraying and processing: Surface spraying and mechanical processing are carried out on the finished steel plate to improve its surface quality and formability.
Where is CR950/1300HS hot stamping steel generally used in the car?
CR950/1300HS steel for hot stamping has excellent formability and high strength, so it is widely used in the field of automobile manufacturing. Generally speaking, it is mainly used in the following parts:
Car door: CR950/1300HS steel for hot stamping can provide sufficient strength and rigidity to resist side impact and deformation, thus protecting the safety of the occupants in the car.
Hood and trunk lid: These parts need to have high strength and toughness to protect the mechanical equipment and luggage inside the vehicle. CR950/1300HS hot stamping steel can meet this demand.
Body frame: CR950/1300HS steel for hot stamping can be used in the production of body frame to provide sufficient rigidity and strength while reducing body weight and improving fuel economy.
Chassis: The chassis needs to have good strength and rigidity to support the body and protect the occupants. CR950/1300HS hot stamping steel also has a good performance in this aspect.
What is the development prospect of CR950/1300HS hot stamping steel?
With the increasing demand for high-strength and lightweight materials in the fields of automobiles, home appliances, and machinery manufacturing, CR950/1300HS steel for hot stamping has a very broad application prospect. Specifically, it has the following development prospects:
Substitute cold-rolled sheet: Compared with traditional cold-rolled sheet materials, CR950/1300HS steel for hot stamping can achieve higher strength and better formability, while reducing product weight and cost, improving production efficiency and environmental protection Therefore, it is expected to replace cold-rolled sheets and become the mainstream material in the fields of automobiles, home appliances, and machinery in the future.
Open up new application fields: In addition to traditional automobiles, household appliances, machinery and other fields, CR950/1300HS hot stamping steel can also be used in construction, rail transit, ships and other fields. The demand for materials with strong resistance is also increasing, so the application prospect of this material is very broad.
Industrial upgrading and transformation and upgrading: CR950/1300HS hot stamping steel is a representative of the transformation and upgrading of the steel industry to high-end products. provide strong support for high-quality development.
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