Advantages and disadvantages of cold rolled full hardened steel sheets
Release time:
Nov 21,2024
Source:
First, iron ore, coke and flux are added to the blast furnace to produce molten iron through a high-temperature reduction reaction. This process is called blast furnace ironmaking.
Advantages of cold rolled full hardened steel sheet include high strength, excellent toughness and surface quality, and good machinability.
High strength and excellent toughness: the tensile strength, yield strength and elongation of cold rolled full hardened steel plate are better than hot rolled steel plate, which makes it widely used in construction, automobile, electrical appliances and other fields.
Good surface quality: the surface of cold rolled full hardened steel plate is smooth and even, without the burrs, oxidized skin and rust and other defects on the surface of hot rolled steel plate, which is especially suitable for the products with high appearance requirements.
Good processing performance: cold rolled full hardened steel plate is easy to weld, bending and deep punching and other processing, widely used in products that require complex processing.
The disadvantages of cold rolled hardened steel include corrosion, high price and the possibility of uneven strengths and weaknesses.
Easy to corrode: cold rolled full hardened steel plate surface is relatively smooth, but its surface coating is not thick enough, easy to be corroded, once corrosion occurs, the service life of the steel plate will be greatly reduced.
Higher price: the manufacturing process of cold rolled full hardened steel plate is complex, requiring multiple processes, high manufacturing costs, resulting in higher prices, limiting the use and popularity in the low-end market.
Uneven strengths and weaknesses: uneven stresses within the coil may occur during processing, resulting in certain differences in mechanical properties, requiring attention to quality control.
In summary, cold rolled full hardened steel plate has high strength, good toughness, good surface quality, good processing performance and many other advantages, but there are also easy to corrosion, higher prices and may be uneven and other shortcomings. In the use of reasonable selection and maintenance according to the specific circumstances, in order to extend its service life.
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