GB/T 16270 specifies technical requirements for high-strength structural steel plates . The current version is GB/T 16270-2009 , which replaced the older 1996 version. Code of China Key Features and Scope Material Focus
Delivery Condition: Plates are delivered in a quenched and tempered (Q+T) state, which provides a unique balance of high strength and excellent toughness.
New Steel Grades: Added high-performance grades Q800, Q890, and Q960, while deleting the Q420 grade. gb t 16270 pdf
Testing: It specifies inspection rules, including ultrasonic testing (referenced in GB/T 2970) and Charpy V-Notch impact tests.
Summarize and Analyze: Create a summary of what the standard covers and analyze its implications for relevant industries, safety, quality control, etc. New Steel Grades : Added high-performance grades Q800,
If you're looking for a PDF version of the standard GB/T 16270, here are a few suggestions:
Example: GB/T 16270-Q690D
Note: As plate thickness increases, the yield strength values decrease slightly.