Q420B coil execution standard

Q420B low-alloy high-strength steel has the advantages of high strength, good comprehensive mechanical properties and welding properties, and is used more and more in important architectural steel structure projects.

Q420 series grades are:
Q420B, Q420BZ15, Q420BZ25, Q420BZ35, Q420C, Q420CZ15, Q420CZ25, Q420CZ35, Q420D, Q420DZ15, Q420DZ25, Q420DZ35, Q420E, Q420EZ15, Q420EZ25, Q420.
Here, Z15, Z25, and Z35 refer to the performance expression method of the material in the Z direction.

Q420B steel is delivered in the controlled state by default, and can be delivered by normalizing + tempering technology according to different needs.
Q420B steel thickness extension can be done 'z15, z2, z35''
Q420B steel thickness flaw detection can be done '1 detection, 2 detection, 3 detection'

Q420B low-alloy high-strength steel is usually used in steel structures such as power towers, various types of lifting cranes, heavy-duty vehicles, oil derricks, high-temperature fans, large electric shovels, dump trucks and drilling rigs, and coal mine hydraulic supports.

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