Steel plate, sheet and strip for pressure equipment - Part 6: Quenched and tempered high strength steel
1 Scope
This document specifies the designation expression methods, order contents, dimensions, appearance, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificate of quenched and tempered high strength steel plate for pressure equipment.
This document is applicable to quenched and tempered high strength steel plate for pressure equipment (hereinafter referred to as the plate) with a thickness of 10 mm ~ 80 mm.
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 of the referenced document (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 223.11 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-benzoyl-N-phenylhydroxylamine extraction photometric method for the determination of vanadium 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 223.18 Methods for chemical analysis of iron, steel and alloy - The sodium thiosulfate separation iodimetric 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 223.40 Iron, steel and alloy - Determination of niobium content by the sulphochlorophenol S spectrophotometric method
GB/T 223.60 Methods for chemical analysis of iron, steel and alloy - The perchloric acid dehydration gravimetric method for the determination of silicon content
GB/T 223.63 Iron, steel and alloy - Determination of manganese content - Sodium (potassium) periodate spectrophotometric method
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 223.78 Methods for chemical analysis of iron, steel and alloy - Curcumin spectrophotometric method for the determination of boron content
GB/T 223.79 Iron and Steel - Determination of multi-element contents - X-ray fluorescence spectrometry (routine 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 232 Metallic materials - Bend test
GB/T 247 General rule of package, mark and certification for steel plates (sheets) and strips
GB/T 713.1 Steel plate, sheet and strip for pressure equipment - 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 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
NB/T 47013.7 Nondestructive testing of pressure equipment - Part 7: Visual examination
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 713.1 apply.
4 Designation expression
Steel designation is composed of the initial Pinyin “Q” of the yield strength “Qu”, the value of specified minimum yield strength, and the initial Pinyin “R” of the pressure vessel “Rong” or the initial Pinyin “DR” of the low temperature pressure vessel “Di Rong”, and the temperature level "L".
Foreword I
Introduction II
1 Scope
2 Normative references
3 Terms and definitions
4 Designation expression
5 Order contents
6 Dimensions, appearance and weight
7 Technical requirements
8 Test methods
9 Inspection rules
10 Packaging, marking and quality certificate
Annex A (Informative) Comparison between similar designations in this document and relevant foreign standards
