Gb T 16270 Pdf !!install!! -

is the Chinese national standard for high-strength structural steel plates delivered in a quenched and tempered condition . The current active version is GB/T 16270-2009 , which replaced the older 1996 version . Key Features and Specifications

: Steel grades are named using three parts: the letter " Q " (representing yield strength), a numerical value for the minimum yield strength (e.g., 460, 690, 960), and a quality grade (C, D, E, or F) .

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. gb t 16270 pdf

If you're planning to use or reference this standard, ensure you obtain it from a reputable source to guarantee accuracy and compliance with applicable regulations.

) to harden them, followed by reheating to a lower temperature ( ) to restore toughness and reduce brittleness. Practical Applications : You will find steel produced under this PDF standard in: Mining Machinery : Such as electric shovels and mine dump trucks. Construction Equipment The steel grade designation follows a specific nomenclature:

| Standard | Purpose | |----------|---------| | | Hot-rolled plate dimensions & tolerances | | GB/T 2975 | Mechanical test sampling location | | GB/T 1591 (for comparison) | Low-alloy high-strength (non-Q&T) | | GB/T 229 | Charpy impact test method | | GB/T 228.1 | Tensile test method |

: Specifies chemical composition and smelting processes (typically oxygen converter or electro-smelting). Practical Applications : You will find steel produced

: Used for cranes, excavators, and bulldozers that require high load-bearing capacity. Large Infrastructure