GB/T 713.4-2023Steel plate,sheet and strip for pressure equipments—Part 4:Nickel-alloy steels with specified low temperature properties (English PDF)

Foreword

This document was drafted in accordance with the rules provided in GB/T 1.1-2020 Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents.

This document is Part 4 of GB/T 713, Steel plate, sheet and strip for pressure equipments. The following parts have been issued for GB/T 713:

-- Part 1: General requirements;

-- Part 2: Non-alloy and alloy steel with specified temperature properties;

-- Part 3: Low alloy steel with specified low temperature properties;

-- Part 4: Nickel-alloy steels with specified low temperature properties;

-- Part 5: High manganese steel with specified low temperature properties;

-- Part 6: Quenched and tempered high strength steel;

-- Part 7: Stainless steel and heat resisting steel.

This document replaces GB/T 24510-2017 Nickel alloy steel plates for low temperature pressure vessels. Compared with GB/T 24510-2017, in addition to structural adjustments and editorial changes, the main technical changes are as follows:

a) Add the designation representation (see Chapter 4);

b) Change the order content (see Chapter 5; Chapter 3 of GB/T 24510-2017);

c) Change the thickness allowable deviation type (see Chapter 6; 4.1 of GB/T 24510-2017);

d) Remove the steel designation 1.5Ni as well as its chemical composition, mechanical properties and other requirements, and add the steel designation 06Ni7DR as well as its chemical composition, mechanical properties and other requirements (see 7.1 and 7.4; 5.1 and 5.4 of GB/T 24510-2017);

e) Change the chemical composition of each designation (see 7.1; 5.1 of GB/T 24510-2017);

f) Change the manufacturing method of steel plates (see 7.2; 5.2 of GB/T 24510-2017);

g) Change the delivery state of steel plates (see 7.3; 5.3 of GB/T 24510-2017);

1 Scope

This document specifies the designation representation, order content, size, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificate, as well as transportation and storage of nickel-alloy steels with specified low temperature properties for pressure equipment.

This document applies to nickel-alloy steels with specified low temperature properties (hereinafter referred to as steel plates) with an operating temperature not lower than - 196 °C and a thickness not greater than 150 mm.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the version corresponding to that date is applicable to this document; for undated references, the latest version (including all amendments) is applicable to this document.

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 - Chrom azurol S photometric method

GB/T 223.12, Methods for chemical analysis of iron, steel and alloy - The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content

GB/T 223.18, Methods for chemical analysis of iron steel and alloy - The sodium thiosulfate separation iodimetric method for the determination of cupper 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 223.40, Iron, steel and alloy - Determination of niobium content by the sulphochlorophenol S spectrophotometric method

GB/T 223.59, Iron, steel and alloy - Determination of phosphorus content - Bismuth phosphomolybdate blue spectrophotometric method and antimony phosphomolybdate blue spectrophotometric method

GB/T 223.63, Iron, steel and alloy - Determination of manganese content - Sodium (potassium) periodate spectrophotometric method

GB/T 223.76, Methods for chemical analysis iron, steel and alloy - The flame atomic absorption spectrometric method for the determination of vanadium content

GB/T 223.79, Iron and steel. Determination of multi-element contents. X-ray fluorescence spectrometry (Routine method)

GB/T 223.85, Steel and iron - Determination of sulfur content - Infrared absorption method after combustion in an induction furnace

GB/T 223.86, Steel and iron - Determination of total carbon content - Infrared absorption method after combustion in an induction furnace

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 232, Metallic materials - Bend test

GB/T 713.1, Steel plate, sheet and strip for pressure equipments - Part 1: General requirements

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

GB/T 6803, Test method for drop-weight test to determine nil-ductility transition temperature of ferritic steels

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 20125, Low-alloy steel - Determination of multi-element contents - Inductively coupled plasma atomic emission spectrometric method

NB/T 47013.3, Nondestructive testing of pressure equipments - Part 3: Ultrasonic testing

3 Terms and definitions

For the purposes of this document, the terms and definitions given in GB/T 713.1 apply.

4 Designation representation

The designation of steel consists of the average carbon content represented by two digits, the nickel element symbol and average content, as well as the Chinese pinyin initials "DR" of "Di" (low) and "Rong" (vessel) for the low temperature pressure vessel. Example: 06Ni9DR.

Where:

06 - average carbon content (in parts per 10,000); Ni9 - average nickel content, 9%;

DR - the Chinese Pinyin initials of "Di" (low) and "Rong" (vessel).

5 Order content

The order content of steel plates shall comply with the regulations of GB/T 713.1.

6 Size, shape, weight

The size, shape, and weight of steel plates shall comply with the regulations of GB/T 713.1.

7 Technical requirements

9 Inspection rules

10 Packaging, marking, quality certificates, as well as transportation and storage

10.1 The packaging, marking and quality certificate of steel plates shall comply with the regulations of GB/T 713.1.

10.2 The quality certificate shall indicate the tempering temperature. When requested by the buyer, the actual heat treatment process can be indicated.

10.3 The surface anti-corrosion and transportation requirements of steel plates shall be stipulated in the agreement between the supplier and the buyer.

10.4 Steel plates with qualified residual magnetism cannot be lifted by electromagnets.

Steel plates cannot be stored near high-voltage electricity and high-voltage electrical equipment, cannot be transported by electrified railways, and cannot be stored in other environments that may affect the level of residual magnetism. […]