GB/T 4354-2025 Hot-rolled quality carbon steel wire rods
1 Scope
This document specifies the order content, manufacturing process, technical requirements, test methods, inspection rules, packaging, marking and quality certification of hot-rolled quality carbon steel wire rods.
This document is applicable to hot-rolled quality carbon steel wire rods (hereinafter referred to as "wire rods") with diameters ranging from 5 mm to 52 mm.
2 Normative references
The following documents contain requirements 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 222 Permissible tolerances for chemical composition of steel products
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 223.4 Alloyed steel - 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 223.12 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 223.19 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 223.58 Methods for chemical analysis of iron, steel and alloy - The sodium arsenite-sodium nitrite titrimetric method for the determination of manganese content
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 223.60 Iron, steel and alloy - Determination of silicon content - Gravimetric method
GB/T 223.61 Methods for chemical analysis of iron, steel and alloy - The ammonium phosphomolybdate volumetric method for the determination of phosphorus content
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 223.63 Iron, steel and alloy - Determination of manganese content - Sodium (potassium) periodate spectrophotometric method
GB/T 223.64 Iron, steel and alloy - Determination of manganese content - Flame atomic absorption spectrometric 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 223.71 Methods for chemical analysis of iron, steel and alloy - The gravimetric method after combustion in the pipe furnace for the determination of carbon content
GBT 223.72 Iron, steel and alloy - Determination of sulfur content - Gravimetric 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 224 Determination of depth of decarburization of steels
GB/T 228.1 Metallic materials - Tensile testing - Part 1: Method of test at room temperature
GB/T 232 Metallic materials - Bend test
GB/T 239.1 Metallic materials - Wire - Part 1: Simple torsion test
GB/T 239.2 Metallic materials - Wire - Part 2: Reverse torsion test
GB/T 699 Quality carbon structure steels
GB/T 2101 General requirement of acceptance, packaging, marking and certification for section steel
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 4930 Microbeam analysis - Electron probe microanalysis - Guidelines for the specification of certified reference materials (CRMs)
GB/T 6394 Determination of estimating the average grain size of metal
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 10561 Steel - Determination of content of nonmetallic inclusions - Micrographic method using standards diagrams
GB/T 13298 Inspection methods of microstructure for metals
GB/T 14981-2009 Dimension, shape, mass and tolerance for hot-rolled round wire rod
GB/T 15074 General specification for EPMA quantitative analysis
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 27025 General requirements for the competence of testing and calibration laboratories
YB/T 169 Metallographic test method of sorbite in high carbon steel wire rod
YB/T 4411 Determination of central martensite in high carbon steel wire rod
YB/T 4412 Determination of grain boundary cementite in high carbon steel wire rod
YB/T 4413 Metallographic determination of core segregation in high carbon steel wire rod
YB/T 5293 Metallic materials - Forging test
3 Term and definition
No terms or definitions are listed in this document.
4 Order information
Order contract made based on this document shall cover the following items:
a) serial number of this document;
b) product name;
c) designation;
d) specification;
Foreword i
1 Scope
2 Normative references
3 Term and definition
4 Order information
5 Manufacturing process
6 Technical requirements
7 Test methods
8 Inspection rules
9 Packaging, marking and quality certificate
Annex A (Normative) Quantitative analysis method of central segregation of high carbon steel wire rod
Annex B (Informative) Setting example of working curve
GB/T 4354-2025 Hot-rolled quality carbon steel wire rods
1 Scope
This document specifies the order content, manufacturing process, technical requirements, test methods, inspection rules, packaging, marking and quality certification of hot-rolled quality carbon steel wire rods.
This document is applicable to hot-rolled quality carbon steel wire rods (hereinafter referred to as "wire rods") with diameters ranging from 5 mm to 52 mm.
2 Normative references
The following documents contain requirements 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 222 Permissible tolerances for chemical composition of steel products
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 223.4 Alloyed steel - 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 223.12 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 223.19 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 223.58 Methods for chemical analysis of iron, steel and alloy - The sodium arsenite-sodium nitrite titrimetric method for the determination of manganese content
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 223.60 Iron, steel and alloy - Determination of silicon content - Gravimetric method
GB/T 223.61 Methods for chemical analysis of iron, steel and alloy - The ammonium phosphomolybdate volumetric method for the determination of phosphorus content
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 223.63 Iron, steel and alloy - Determination of manganese content - Sodium (potassium) periodate spectrophotometric method
GB/T 223.64 Iron, steel and alloy - Determination of manganese content - Flame atomic absorption spectrometric 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 223.71 Methods for chemical analysis of iron, steel and alloy - The gravimetric method after combustion in the pipe furnace for the determination of carbon content
GBT 223.72 Iron, steel and alloy - Determination of sulfur content - Gravimetric 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 224 Determination of depth of decarburization of steels
GB/T 228.1 Metallic materials - Tensile testing - Part 1: Method of test at room temperature
GB/T 232 Metallic materials - Bend test
GB/T 239.1 Metallic materials - Wire - Part 1: Simple torsion test
GB/T 239.2 Metallic materials - Wire - Part 2: Reverse torsion test
GB/T 699 Quality carbon structure steels
GB/T 2101 General requirement of acceptance, packaging, marking and certification for section steel
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 4930 Microbeam analysis - Electron probe microanalysis - Guidelines for the specification of certified reference materials (CRMs)
GB/T 6394 Determination of estimating the average grain size of metal
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
GB/T 10561 Steel - Determination of content of nonmetallic inclusions - Micrographic method using standards diagrams
GB/T 13298 Inspection methods of microstructure for metals
GB/T 14981-2009 Dimension, shape, mass and tolerance for hot-rolled round wire rod
GB/T 15074 General specification for EPMA quantitative analysis
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 27025 General requirements for the competence of testing and calibration laboratories
YB/T 169 Metallographic test method of sorbite in high carbon steel wire rod
YB/T 4411 Determination of central martensite in high carbon steel wire rod
YB/T 4412 Determination of grain boundary cementite in high carbon steel wire rod
YB/T 4413 Metallographic determination of core segregation in high carbon steel wire rod
YB/T 5293 Metallic materials - Forging test
3 Term and definition
No terms or definitions are listed in this document.
4 Order information
Order contract made based on this document shall cover the following items:
a) serial number of this document;
b) product name;
c) designation;
d) specification;
Contents of GB/T 4354-2025
Foreword i
1 Scope
2 Normative references
3 Term and definition
4 Order information
5 Manufacturing process
6 Technical requirements
7 Test methods
8 Inspection rules
9 Packaging, marking and quality certificate
Annex A (Normative) Quantitative analysis method of central segregation of high carbon steel wire rod
Annex B (Informative) Setting example of working curve
