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This standard is a critical specification in the Chinese steel industry, widely used in construction, bridge building, and heavy machinery.
: Used for cranes, excavators, and bulldozers that require high load-bearing capacity. Large Infrastructure
Which (e.g., Q690, Q960) you are focusing on
Steel is tested for yield strength, tensile strength, elongation, and impact energy. For example, must maintain specific impact toughness at Chinese Standard GB/T Common Steel Grades
: Specifically covers high-strength structural steel plates delivered in quenched and tempered (Q+T) conditions. Thickness Limits : Applicable to plates with a thickness not exceeding (extended from 100mm in the previous version). Reference Standards
Used in the fabrication of dump truck bodies, power shovels, rock crushers, and longwall mining shields.
The steel grade designation follows a specific nomenclature: the letter followed by the specified minimum yield strength value (in MPa), and a quality suffix regarding impact energy.
: High strength structural steel plates in the quenched and tempered condition.
Specified at temperatures ranging from 0°C down to -60°C to guarantee brittle-fracture resistance in cold climates. 3. Delivery Condition
: Often carries international and foreign national standards.
I can provide specific or mechanical property tables for that exact grade. Share public link
is the Chinese National Standard for High-strength structural steel plates delivered in the quenched and tempered (Q&T) condition. It is specifically used for heavy-duty structural components like mining equipment, cranes, and offshore rigs that require high load-bearing and impact resistance. Key Standard Details (2009 vs. 1996 Version)
It is important to note that has been largely superseded or integrated into newer standards. In many modern applications, it has been replaced by GB/T 1591-2018 (High strength low alloy structural steels) or GB/T 16270-2009 , depending on the specific material requirements. Where to Find the PDF
Plates must be delivered in a quenched and tempered condition.
Crane booms, excavators, dump truck bodies, and concrete pump trucks.
The standard applies to steel plates with a nominal thickness ranging from , primarily used for welded structures in construction, mining machinery, cranes, and bridges.
According to the English version of GB/T 16270-2009 , the standard outlines several critical parameters: