GB/T 712-2022
Structural steel for ship and ocean engineering (English Version)

Standard No.

GB/T 712-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 712-2022

Replace

GB/T 712-2011

Scope

This document specifies the classification and designation, order content, dimensions, shape, weight, technical requirements, test methods, inspection rules, packaging, marks and quality certificates of structural steel for ships and ocean engineering. This document is applicable to the manufacture of steel plates with a thickness of no more than 150 mm for hull structures such as oceangoing, coastal and inland navigation ships, fishing boats, and marine engineering structures with a thickness of no more than 250 mm, and steel strips and shear plates with a thickness of no more than 25.4 mm. , Section steel with a thickness not greater than 50 mm or bar with a diameter not greater than 50 mm (hereinafter referred to as steel).

GB/T 712-2022 Referenced Document

• GB/T 11261 Steel and lron - Determination of oxygen content - The pulse heating inert gas fusion-infra-red absorption method
• GB/T 1591 High strength low alloy structural steels
• GB/T 17505 Steel and steel products.General technical delivery requirements
• GB/T 20066 Steel and iron.Sampling and preparation of samples for the determination of chemical composition
• GB/T 20123 Steel and iron - Determination of total carbon and sulfur content Infrared absorption method after combustion in an induction furnace (routine method)
• GB/T 20124 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (Routine method)
• GB/T 20125 Low-alloy steel.Determination of multi-element contents.Inductively coupled plasma atomic emission spectrometric method
• GB/T 2101 General requirment of acceptance, packaging, marking and certification for section steel
• GB/T 222 Permissible tolerances for chemical composition of steel products
• GB/T 223.14 Methods for chemical analysis of iron,steel and alloy The N-benzoy-N-phenylhydroxylamine extraction photometric method for the determination of vanadium content
• GB/T 223.19 Methods for chemical analysis of iron,steel and alloy--The neocuproine-chloroform extraction photometric method for the determination of copper content
• GB/T 223.23 Iron,,steel and alloy.Determination of nickel content.The dimethylglyoxime spectrophotometric method
• GB/T 223.25 Methods for chemical analysis of iron, steel and alloy.The dimethylglyoxime gravimetric method for the determination of nickel content
• GB/T 223.26 Iron,steel and alloy.Determination of molybdenum content.The thiocyanate spectrophotometric method
• GB/T 223.37 Iron, steel and alloy—Determination of nitrogen content—Indophenol blue spectrophotometric method after distillation separation
• GB/T 223.40 Iron, steel and alloy Determination of niobium content by the sulphochlorophenol S spectrophotometric method
• GB/T 223.5 Steel and iron.Determination of acid-soluble silicon and total silicon content.Reduced molybdosilicate spectrophotometric method
• GB/T 223.62 Methods for chemical analysis of iron, steel and alloy--The butyl acetate extraction photometric method for the determination of phosphorus content
• GB/T 223.63 Iron, steel and alloy—Determination of manganese content—Sodium (potassium) periodate spectrophotometric method
• GB/T 223.67 Iron,steel and alloy.Determination of sulfur content.Methylene blue spectrophotometric method
• GB/T 223.69 Iron,steel and alloy.Determination of carbon contents.Gas-volumetric method after combustion in the pipe furnace
• GB/T 223.78 Methods for chemical analysis of iron,steel and alloy-Curcumin spectrophotometric method for the determination of boron content
• GB/T 223.84 Steel and iron.Determination of titanium content.Diantipyrylmethane spectrophotometric method
• GB/T 223.9 Iron,steel and alloy.Determination of aluminium content.Chrome azurol S photometric method
• GB/T 228.1 Metallic materials—Tensile testing—Part 1: Method of test at room temperature
• GB/T 229 Metallic materials—Charpy pendulum impact test method
• GB/T 247 General rule of package,mark and certification for steel plates(sheets)and strips
• GB/T 2970 Method for ultrasonic testing of thicker steel plates
• GB/T 2975 Steel and steel products.Location and preparation of samples and test pieces for mechanical testing
• GB/T 5313 Thickness direction performance steel plate*， 2023-09-07 Update
• GB/T 6394 Determination of estimating the average grain size of metal
• GB/T 709 "Dimension,shape,weight and tolerance for hot rolled steel strip,plate and sheet"
• GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values

GB/T 712-2022 history

• 2022 GB/T 712-2022 Structural steel for ship and ocean engineering
• 2011 GB 712-2011 Ship and ocean engineering structural steel
• 1988 GB 712-1988 Structural steel for hull