Reduction of Area
Definition and Significance: Reduction of area refers to the ratio of the reduction in the cross - sectional area at the fracture to the original cross - sectional area of the steel after tensile fracture. It is also an important indicator for measuring the plasticity of steel. Together with elongation, it can provide a more comprehensive evaluation of the plastic properties of steel. In the processing and use of pipes, the reduction of area can reflect the deformation and anti - fracture ability of the pipes when they are subjected to tensile forces.
Influencing Factors: The composition and microstructure of steel are the main factors affecting the reduction of area. Steel with high purity and few impurities usually has a higher reduction of area. In terms of microstructure, a uniform microstructure is conducive to increasing the reduction of area. For example, the uniform pearlite structure obtained through normalizing treatment, compared with non - uniform structures, enables the steel to have better deformation coordination during the stretching process, thereby increasing the reduction of area.

Impact Toughness
Definition and Significance: Impact toughness refers to the ability of steel to absorb energy under impact loading. In some structures that may be suddenly impacted, such as building structures under earthquake or explosion impact and mechanical parts under accidental collision, the quality of impact toughness is directly related to the safety and reliability of the structure or part.
 

 

 

 

Hardness
Definition and Significance: Hardness refers to the ability of a material to resist local deformation, especially plastic deformation, indentation, or scratching. In some application scenarios that require wear resistance, such as the frictional surfaces of mechanical parts and the mining components of mining equipment, hardness is an important performance indicator. Steel with high hardness can better resist wear and prolong its service life.
Influencing Factors: The heat - treatment state of steel has a great impact on hardness. For example, quenching treatment can significantly increase the hardness of steel. This is because the quenching process enables the steel to form a martensite structure, and martensite has the characteristic of high hardness. At the same time, the chemical composition of steel is also related to hardness. The higher the carbon content, the higher the hardness of the steel usually is. Because the carbon element can be dissolved in the iron lattice, producing a solid - solution strengthening effect, and under certain conditions, carbides can be formed to further increase the hardness.

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We take pride in our ability to provide custom solutions for our customers' unique needs.
We analyze and compare the previous products and the current technical situation of our KR A63 Steel Plate, and develop new technical specifications and processes.
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Our Cold-rolled Steel products are known for their durability and reliability.
Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.

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