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GB/T 713.5-2023 English PDF (GBT713.5-2023)

GB/T 713.5-2023 English PDF (GBT713.5-2023)

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GB/T 713.5-2023: Steel plate, sheet and strip for pressure equipments - Part 5: High manganese steel with specified low temperature properties

This document stipulates the designation representation, order content, size, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of high manganese steel with specified low temperature properties for pressure equipment. This document applies to high manganese steel with specified low temperature properties (hereinafter referred to as steel plates) with an operating temperature of not less than -196 ????C and a thickness of 5 mm ~ 60 mm.
GB/T 713.5-2023
GB
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 77.140.50
CCS H 46
Steel plate, sheet and strip for pressure equipments - Part 5:
High manganese steel with specified low temperature
properties
ISSUED ON: AUGUST 06, 2023
IMPLEMENTED ON: MARCH 01, 2024
Issued by: State Administration for Market Regulation;
Standardization Administration of the PEOPLE Republic of China.
Table of Contents
Foreword ... 3
Introduction ... 4
1 Scope ... 6
2 Normative references ... 6
3 Terms and definitions ... 8
4 Designation representation ... 8
5 Order content ... 8
6 Size, shape, weight... 8
7 Technical requirements ... 9
8 Test methods ... 10
9 Inspection rules ... 11
10 Packaging, marking and quality certificate ... 11
Steel plate, sheet and strip for pressure equipments - Part 5:
High manganese steel with specified low temperature
properties
1 Scope
This document stipulates the designation representation, order content, size, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of high manganese steel with specified low temperature properties for pressure equipment.
This document applies to high manganese steel with specified low temperature properties (hereinafter referred to as steel plates) with an operating temperature of not less than -196 ??C and a thickness of 5 mm ~ 60 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 223.11, Iron, steel and alloy - Determination of chromium content - Visual titration or potentiometric titration method
GB/T 223.17, Methods for chemical analysis of iron, steel and alloy - The diantipyrylmethane photometric method for the determination of titanium 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 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 three parts, i.e., the first letter of the Chinese pinyin of the word ?€?Qu?€? (yield) for yield strength, the specified minimum yield strength (specified plastic elongation strength) value, the first letters of the Chinese pinyin of the characters ?€?Gao?€? (high) and ?€?Meng?€? (manganese) representing high manganese and the characters ?€?Di?€? (low) and ?€?Rong?€? (vessel) representing low temperature vessel. Example: Q400GMDR. Where:
Q ?€? the first letter of the Chinese pinyin of the word ?€?Qu?€? for yield strength; GM ?€? the first letters of the Chinese pinyin of the characters ?€?Gao?€? and ?€?Meng?€? for ?€?high manganese?€?;
DR ?€? the first letters of the Chinese pinyin of the characters ?€?Di?€? and ?€?Rong?€? for ?€?low temperature vessel?€?;
400 ?€? the specified minimum yield strength, in megapascals (MPa), which is the specified plastic elongation strength Rp0.2.
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
7.1 Designation and chemical composition
7.1.1 The steel designation and chemical composition (melting analysis) shall comply with the requirements of Table 1.
7.1.2 To improve the properties of steels, other alloying elements than those in Table 1 can be added, such as Ni, Mo, Nb, V, Ti, Al, etc., where Ni???1.0%, Mo???0.30%, Nb+V+Ti ???0.30%, Alt???0.10%; the corresponding element content shall be indicated in the quality certificate. When Ni ??? 0.30%, Cu can be lower than 0.30%.
7.1.3 The allowable deviation of the chemical composition of finished steel plates shall comply with the provisions of GB/T 713.1.
7.2 Manufacturing method
The manufacturing method of steel plates shall comply with the regulations of GB/T 713.1.
7.3 Delivery state
Steel plates shall be delivered in a thermomechanical processed state.
7.4 Mechanical properties and technological properties
7.4.1 The general requirements for mechanical properties and technological properties of steel plates shall comply with the provisions of GB/T 713.1.
7.4.2 The mechanical properties and technological properties of steel plates shall comply with the requirements in Table 2.
7.4.3 As negotiated between the supply and demand parties, a set of impact samples can be added at 1/2 of the thickness for steel plates with a thickness greater than 36 mm. The Charpy (V-notch) impact absorption energy shall be determined by negotiation between the supply and demand parties.

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