GB/T 699-2015 Translated English of Chinese Standard. (GBT 699-2015, GB/T699-2015, GBT699-2015): Quality carbon structure steels
https://www.chinesestandard.net, 13.07.2016 - 17 Seiten
This Standard specifies classification and code, order information, size, appearance and weight, technical requirements, test methods, inspection rules, packaging, marks and quality certificate of quality carbon structural steel bars. This Standard is applicable to hot-rolled or forged quality carbon structural steel bars of which nominal diameter or thickness is not greater than 250 mm. Hotrolled or forged quality carbon structural steel bars of which nominal diameter or thickness is greater than 250 mm shall also be supplied, as agreed between the buyer and the supplier.
Classifications and Code
Size Appearance and Weight
Packaging Marks and Quality Certificate
absolute value aliquation Allowable imperfection clear bar for cutting bar of different bar shall comply batch Steel bar billet buyer carbon structural steel chemical composition chromium cold upsetting contract diameter or thickness different piece GB/T Etch test grain fineness guarantee the conformance heat treatment hot upsetting hot-rolled impact test imperfection clear depth inert gas Infrared absorption method Iron and Steel Iron steel Low-alloy steel manganese content Mechanical Properties Metallic materials method after combustion multi-element contents nominal diameter Nominal size tolerance Non-metallic inclusions pickled macrostructure piece On whole provisions in GB/T provisions in Table quality carbon structural quenching Routine method specified spectrophotometric method GB/T steel and alloy Steel and iron steel GB/T structural steel bars Sub-clause sulfur supplier can guarantee surface of steel Surface quality tensile Tensile strength test methods thickness is greater tolerance of steel Ultrasonic Inspecting ultrasonic test unified numerical code whole steel bar YB/T yield strength