A588 Grade K Steel Vs a573 grade 65 structural carbon plate

After 1975, our equipment includes blast furnaces, electric furnaces, vacuum refining furnaces, and electroslag furnaces. The product varieties are relatively complete. Plates, a573 grade 65 structural carbon plate tubes, wires, belts, and profiles have a certain scale, including magnetic, elastic, expanded, bimetal and other precision alloy materials for national defense and electronics industries. In 1982, these plants produced 364,000 tons of a573 grade 65 structural carbon plate steel and 542,000 tons of steel.

With the increase of temperature, the yield limit of a573 grade 65 structural carbon plate will decrease monotonically, but the tensile strength of a573 grade 65 structural carbon plate will rise to a high peak value at a certain temperature, and then decrease. This peak temperature is called the blue brittleness temperature of a573 grade 65 structural carbon plate. Near the blue brittleness temperature, the a573 grade 65 structural carbon plate strength increases and the plasticity decreases. The elongation and section shrinkage of a573 grade 65 structural carbon plate increase with the increase of temperature, but there is a low peak at the blue brittleness temperature. The blue brittleness temperature of low carbon steel ranges from 200 ℃ to 250 ℃. The blue brittleness of low alloy steel is not obvious as that of low carbon steel, and the blue brittleness temperature is higher.

EN10149 S900MC hot-dip zinc-coating steel coil chemical composition (melting analysis)%
C: ≤0.20, Si: ≤0.60, Mn: ≤2.20, P: ≤0.025, S: ≤0.015, Al: ≥0.015, Nb: ≤0.09, V: ≤0.20, Ti: ≤0.22, Mo: ≤1.00, B: ≤0.005
The mechanical properties
Yield strength: ≥900 MPa
Tensile strength:930-1200 MPa
Elongation: ≥7%

We specialize in the production and sale of steel products. We have many customers from all over the world. Our products a573 grade 65 structural carbon plate have strict quality inspection departments, so we have absolute quality and technical advantages. Good promotion system, with advanced business philosophy, create development space, enhance the value of employees, improve the quality of life as the mission. Pursuing green procurement, energy conservation and consumption reduction.