Q420C high strength steel

Q420C is a low-alloy high-strength structural steel plate, and the implementation standard of Q420C steel plate is: GB/T1591 special technical conditions.

Q = yield in Q420C steel plate, 420 = yield strength unit, C = steel plate grade 0 degree impact.

The same as GB/T1591, the standard steel plates are Q345ABCD, Q355ABCD, Q390ABCD, Q420ABCD, Q460CD, Q500CDE, Q550CDE, Q620CDE.

Q420C high-strength steel plate has the advantages of high strength, but it also has disadvantages such as poor formability, difficult to control springback, easy to break, etc. Therefore, it is difficult to realize the manufacture of complex auto parts by using traditional cold stamping forming process, and hot stamping forming technology is required. .

High-strength steel plate (high-strength plate) has high strength, especially in the normalized and tempered state, which has high comprehensive mechanical properties.

Q420C high strength steel is mainly used for large ships, bridges, power station equipment, medium and high pressure boilers, high pressure vessels, rolling stock, hoisting machinery, mining machinery and other large welded structural parts.

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