Q690B quenched and tempered steel plate is a high-strength low-alloy structural steel mainly used for structural components requiring high load-bearing and impact resistance. The following is an introduction to the standards for Q690B quenched and tempered steel plates:

Implementation Standards

Q690B quenched and tempered steel plates typically comply with the Chinese national standards:

 

GB/T 1591-2008 Low-Alloy High-Strength Structural Steel

GB/T 16270-2009 Quenched and Tempered Steel Plates for High-Strength Structures

Surface Quality

The surface of Q690B steel plates shall be flat and clean, free of defects such as cracks, laps, and scabs, ensuring the integrity and reliability of the material.

Flaw Detection Requirements

Depending on application needs, Q690B steel plates may undergo ultrasonic flaw detection or other non-destructive testing to ensure no internal defects exist.

Marking and Quality Certification

Each Q690B steel plate shall bear clear markings, including the steel grade, specifications, production batch number, etc.

A quality certificate shall be provided to demonstrate compliance with relevant standards.

 

Q690B quenched and tempered steel plates play a critical role in heavy-duty structures and machinery manufacturing due to their high strength and good toughness. The selection of appropriate Q690B steel plates should be determined based on specific application environments and performance requirements.

Medium Plate
16mm Q690B Trimmed Edge 10250 2200 1 2.832
16mm Q690B Trimmed Edge 10400 2200 1 2.874
16mm Q690B Trimmed Edge 10500 2200 1 2.901
16mm Q690B Trimmed Edge 10400 2200 1 2.874
12mm Q690B Trimmed Edge 10300 2000 1 1.941
12mm Q690B Trimmed Edge 10200 2000 1 1.922
12mm Q690B Trimmed Edge 10350 2000 1 1.95
12mm Q690B Trimmed Edge 10400 2000 1 1.959

 

 

 

 

 

 

 

 

 

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