GB/T 38713-2020Medium manganese steel plate for offshore platform structure (English PDF)

1 Scope

This Standard specifies the designation representation, order content, size, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificates of medium manganese steel plate for offshore platform structure.

This Standard applies to medium manganese steel plates (hereinafter referred to as steel plates) whose thickness is 20 mm ~ 150 mm for offshore platform structure.

2 Normative references

The following documents are indispensable for the application of this document.

For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 222, Permissible tolerances for chemical composition of steel products

GB/T 223.4, Iron, steel and alloy - Determination of manganese content - Potentiometric or visual titration method

GB/T 223.5, Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method

GB/T 223.9, Iron, steel and alloy - Determination of aluminium content - Chrome azurol S photometric method

GB/T 223.11, Iron, steel and alloy - Determination of chromium content - Visual titration or potentiometric titration method

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 223.26, Iron, steel and alloy - Determination of molybdenum content - The thiocyanate spectrophotometric method

GB/T 223.37, Methods for chemical analysis of iron, steel and alloy - The indophenol blue photometric methods for the determination of nitrogen content after distillation separation

GB/T 223.40, Iron, steel and alloy - Determination of niobium content by the sulphochlorophenol S 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 223.67, 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 223.72, Iron, steel and alloy - Determination of sulfur content - Gravimetric 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 709-2019, Dimension shape weight and tolerances for hot-rolled steel plates and sheets

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 4336, Carbon and low-alloy steel - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (routine method)

GB/T 5313, Steel plate with through-thickness characteristics

4 Order content

The contract or order in accordance with this Standard shall include the following information:

a) reference to this Standard;

b) designation;

c) specification;

d) delivery status;

e) weight (quantity);

f) size and shape accuracy; g) special requirements.

5 Size, shape, weight

6 Technical requirements

7 Test method