GB/T 713.3-2023 Steel plate, sheet and strip for pressure equipments - Part 3: Low alloy steel with specified low temperature properties
1 Scope
This document specifies the designation representation, order information, dimension, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of low alloy steel plates with specified low temperature properties for pressure equipment.
This document is applicable to the manufacture of low alloy steel plates (hereinafter referred to as steel plates) with a thickness of 5 mm ~ 120 mm for use in pressure equipment at a service temperature of not less than -70°C.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 223.3 Methods for chemical analysis of iron, steel and alloy - The diantipyryl methane phosphomolybdate gravimetric method for the determination of phosphorus content
GB/T 223.9 Iron, steel and alloy - Determination of aluminium content - Chrome 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 223.17 Methods for chemical analysis of iron, steel and alloy - The diantipyrylmethane photometric method for the determination of titanium 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 223.40 Iron, steel and alloy - Determination of niobium content by the sulphochlorophenol S spectrophotometric method
GB/T 223.63 Methods for chemical analysis of iron, steel and alloy - The sodium (potassium) periodate photometric method for the determination of manganese content
GB/T 223.68 Methods for chemical analysis of iron, steel and alloy - The potassium iodate titration method after
combustion in the pipe furnace for the determination of sulfur content
GB/T 223.69 Iron, steel and alloy - Determination of carbon contents - Gas-volumetric method after combustion in the pipe furnace
GB/T 223.76 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrometric method for the determination of vanadium content
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/T2975 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 6803 Test method for drop-weight test to determine nil-ductility transition temperature of ferritic 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 20125 Low-alloy steel - Determination of multi-element contents - Inductively coupled plasma atomic emission spectrometric method
NB/T 47013.3 Nondestructive testing of pressure equipment - Part 3: Ultrasonic testing
3 Terms and definitions
For the purposes of this standard, the terms and definitions given in GB/T 713.1 apply.
4 Designation expression
4.1 When named for strength, steel designation is composed of the initial Pinyin “Q” of the yield strength “Qu”, the value of specified minimum lower yield strength, and the initial Pinyins “DR” of low temperature pressure vessel “Di” and “Rong”.
Foreword i
Introduction iii
1 Scope
2 Normative references
3 Terms and definitions
4 Grade expression
5 Order content
6 Dimension, shape and weight
7 Technical requirements
8 Test methods
9 Inspection rules
10 Packaging, marking and quality certification
Annex A (Informative) Comparison between similar grades in this document and relevant foreign standards
