It covers plates used in:
: Maximum applicable thickness was increased from 100mm to 150mm .
Used for solid solution strengthening.
GB/T 16270 standard outlines the technical specifications for high-strength structural steel plates delivered in a quenched and tempered condition gb t 16270 pdf
: Identifies the minimum required yield strength measured in Megapascals (MPa).
GB/T 16270 grades are often compared to European and American standards for global procurement:
For high-strength steels, weldability is a primary concern. The PDF stipulates maximum limits for: It covers plates used in: : Maximum applicable
Each grade is paired with a quality letter (such as C, D, E, or F) indicating Charpy V-notch impact testing temperatures: Tested at -20∘Cnegative 20 raised to the composed with power C E: Tested at -40∘Cnegative 40 raised to the composed with power C F: Tested at -60∘Cnegative 60 raised to the composed with power C (essential for arctic or deep mining applications) 🏭 Delivery Conditions and Heat Treatment
Unlike regular structural steel, GB/T 16270 steels are (Q+T). The PDF specifies that the steel must be heat-treated after rolling to achieve a martensitic or bainitic microstructure.
It applies to steel plates with a thickness of used in structures such as bridges, buildings, offshore platforms, and other engineering applications requiring high strength and good weldability. GB/T 16270 grades are often compared to European
The Standardization Administration of China offers official lookups.
: There are several databases and services that offer access to standards from various countries, often for a fee. Examples include IHS Standards Connect, ANSI Webstore, and ISO Online Library, though they might not specifically have GB/T 16270.
Chinese standards often allow slightly wider tolerances on thickness dimensions but have stricter rules for low-temperature impact testing.