1 Scope
This part of GB/T 34484 specifies the ordering information, dimensions, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and certification of alloy steels for quenching and tempering.
This part is applicable to rolled round steels with nominal diameter no more than 310 mm and rolled square steels with nominal side length no more than 280 mm (hereinafter referred to as steels).
2 Normative References
The following referenced documents are indispensable for the application 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 222 Permissible Tolerances for Chemical Composition of Steel Products
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 223.11-2008, ISO 4937:1986, MOD)
GB/T 223.13 Methods for Chemical Analysis of Iron, Steel and Alloy — The ammonium Ferrous Sulfate Titration 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 223.23 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 223.53 Methods for Chemical Analysis of Iron, Steel and Alloy — Flame Atomic Absorption Spectrometric Method for the Determination of Copper Content
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 223.62 Methods for Chemical Analysis of Iron, Steel and Alloy — The Butyl Acetate Extraction Photometric Method for the Determination of Phosphorus Content
GB/T 223.64 Iron, Steel and Alloy — Determination of Manganese Content - Flame Atomic Absorption Spectrometric Method (GB/T 223.64-2008, ISO 10700:1994, IDT)
GB/T 223.69 Iron, Steel and Alloy — Determination of Carbon Contents — Gas-volumetric Method after Combustion in the Pipe Furnace
GB/T 223.72 Iron, Steel and Alloy — Determination of Sulfur Content — Gravimetric Method
GB/T 223.75 Iron, Steel and Alloy — Determination of Boron Content — Methanol Distillation-curcumin Photometric Method
GB/T 226 Test Method for Macrostructure and Defect of Steel by Etching
GB/T 228.1 Metallic Materials — Tensile Testing — Part 1: Method of Test at Room Temperature (GB/T 228.1-2010, ISO 6892-1:2009, MOD)
GB/T 229 Metallic Materials — Charpy Pendulum Impact Test Method (GB/T 229-2007, ISO 148-1:2006, MOD)
GB/T 230.1 Metallic Materials — Rockwell Hardness Test — Part 1: Test Method (GB/T 230.1-2018, ISO 6508-1:2016, MOD)
GB/T 231.1 Metallic Materials — Brinell Hardness Test — Part 1: Test Method (GB/T 231.1-2009, ISO 6506-1:2014, MOD)
GB/T 702-2017 Hot-rolled Steel Bars — Dimensions, Shape, Weight and Tolerances
GB/T 1979 Standard Diagrams for Macrostructure and Defect of Structural Steels
GB/T 2101 General Requirement of Acceptance, Packaging, Marking, and Certification for Section Steel
GB/T 4162 Forged and Rolled Steel Bars — Method for Ultrasonic Testing
GB/T 4336 Carbon and Low-alloy Steel — Determination of Multi-element Contents — Spark Discharge Atomic Emission Spectrometric Method (Routine Method)
GB/T 6394 Determination of Estimating the Average Grain Size of Metal
GB/T 10561-2005 Steel — Determination of Content of Nonmetallic Inclusions — Micrographic Method Using Standards Diagrams (ISO 4967:1998, IDT)
GB/T 17505 Steel and Steel Products — General Technical Delivery Requirements (GB/T 17505-2016, ISO 404:2013, MOD)
GB/T 20066 Steel and Iron — Sampling and Preparation of Samples for the Determination of Chemical Composition (GB/T 20066-2006, ISO 14284:1996, IDT)
GB/T 20123 Steel and Iron — Determination of Total Carbon and Sulfur Content Infrared Absorption Method after Combustion in an Induction Furnace (Routine Method)
3 Ordering Information
Contracts or orders made based on this part shall cover the following information:
a) the number of this part;
b) product name;
c) designation;
d) smelting method (see 5.2);
e) surface hardness (see 5.4);
f) grain size (see 5.7)
g) non-destructive tests (see 5.8);
h) remanence (see 5.9);
i) weight (or quantity);
j) dimensions and shape (see Clause 4);
k) special requirements.
Foreword II
1 Scope
2 Normative References
3 Ordering Information
4 Dimension, Shape and Weight
5 Technical Requirements
5.1 Designation and chemical composition
5.2 Smelting process
5.3 Delivery condition
5.4 Mechanical properties
5.5 Macrostructure
5.6 Nonmetallic inclusions
5.7 Grain size
5.8 Ultrasonic testing
5.9 Remanence
5.10 Surface quality
6 Test Methods
7 Inspection Rules
7.1 Inspection and acceptance
7.2 Batching rules
7.3 Sampling quantity and sampling position
7.4 Reinspection and judgment rules
8 Packaging, Marking and Quality Certificate
Annex A (Informative) Structural Changes of This Part with Respect to ISO 683-2:2016
Annex B (Informative) Technical Deviations between This Part and ISO 683-2:2016 and Their Justifications
Annex C (Informative) Designation of Steels Given in This Part and of Comparable Grades Covered in Foreign Standards
Annex D (Normative) Sampling Location for Mechanical Property Test
1 Scope
This part of GB/T 34484 specifies the ordering information, dimensions, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and certification of alloy steels for quenching and tempering.
This part is applicable to rolled round steels with nominal diameter no more than 310 mm and rolled square steels with nominal side length no more than 280 mm (hereinafter referred to as steels).
2 Normative References
The following referenced documents are indispensable for the application 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 222 Permissible Tolerances for Chemical Composition of Steel Products
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 223.11-2008, ISO 4937:1986, MOD)
GB/T 223.13 Methods for Chemical Analysis of Iron, Steel and Alloy — The ammonium Ferrous Sulfate Titration 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 223.23 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 223.53 Methods for Chemical Analysis of Iron, Steel and Alloy — Flame Atomic Absorption Spectrometric Method for the Determination of Copper Content
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 223.62 Methods for Chemical Analysis of Iron, Steel and Alloy — The Butyl Acetate Extraction Photometric Method for the Determination of Phosphorus Content
GB/T 223.64 Iron, Steel and Alloy — Determination of Manganese Content - Flame Atomic Absorption Spectrometric Method (GB/T 223.64-2008, ISO 10700:1994, IDT)
GB/T 223.69 Iron, Steel and Alloy — Determination of Carbon Contents — Gas-volumetric Method after Combustion in the Pipe Furnace
GB/T 223.72 Iron, Steel and Alloy — Determination of Sulfur Content — Gravimetric Method
GB/T 223.75 Iron, Steel and Alloy — Determination of Boron Content — Methanol Distillation-curcumin Photometric Method
GB/T 226 Test Method for Macrostructure and Defect of Steel by Etching
GB/T 228.1 Metallic Materials — Tensile Testing — Part 1: Method of Test at Room Temperature (GB/T 228.1-2010, ISO 6892-1:2009, MOD)
GB/T 229 Metallic Materials — Charpy Pendulum Impact Test Method (GB/T 229-2007, ISO 148-1:2006, MOD)
GB/T 230.1 Metallic Materials — Rockwell Hardness Test — Part 1: Test Method (GB/T 230.1-2018, ISO 6508-1:2016, MOD)
GB/T 231.1 Metallic Materials — Brinell Hardness Test — Part 1: Test Method (GB/T 231.1-2009, ISO 6506-1:2014, MOD)
GB/T 702-2017 Hot-rolled Steel Bars — Dimensions, Shape, Weight and Tolerances
GB/T 1979 Standard Diagrams for Macrostructure and Defect of Structural Steels
GB/T 2101 General Requirement of Acceptance, Packaging, Marking, and Certification for Section Steel
GB/T 4162 Forged and Rolled Steel Bars — Method for Ultrasonic Testing
GB/T 4336 Carbon and Low-alloy Steel — Determination of Multi-element Contents — Spark Discharge Atomic Emission Spectrometric Method (Routine Method)
GB/T 6394 Determination of Estimating the Average Grain Size of Metal
GB/T 10561-2005 Steel — Determination of Content of Nonmetallic Inclusions — Micrographic Method Using Standards Diagrams (ISO 4967:1998, IDT)
GB/T 17505 Steel and Steel Products — General Technical Delivery Requirements (GB/T 17505-2016, ISO 404:2013, MOD)
GB/T 20066 Steel and Iron — Sampling and Preparation of Samples for the Determination of Chemical Composition (GB/T 20066-2006, ISO 14284:1996, IDT)
GB/T 20123 Steel and Iron — Determination of Total Carbon and Sulfur Content Infrared Absorption Method after Combustion in an Induction Furnace (Routine Method)
3 Ordering Information
Contracts or orders made based on this part shall cover the following information:
a) the number of this part;
b) product name;
c) designation;
d) smelting method (see 5.2);
e) surface hardness (see 5.4);
f) grain size (see 5.7)
g) non-destructive tests (see 5.8);
h) remanence (see 5.9);
i) weight (or quantity);
j) dimensions and shape (see Clause 4);
k) special requirements.
Contents of GB/T 34484.2-2018
Foreword II
1 Scope
2 Normative References
3 Ordering Information
4 Dimension, Shape and Weight
5 Technical Requirements
5.1 Designation and chemical composition
5.2 Smelting process
5.3 Delivery condition
5.4 Mechanical properties
5.5 Macrostructure
5.6 Nonmetallic inclusions
5.7 Grain size
5.8 Ultrasonic testing
5.9 Remanence
5.10 Surface quality
6 Test Methods
7 Inspection Rules
7.1 Inspection and acceptance
7.2 Batching rules
7.3 Sampling quantity and sampling position
7.4 Reinspection and judgment rules
8 Packaging, Marking and Quality Certificate
Annex A (Informative) Structural Changes of This Part with Respect to ISO 683-2:2016
Annex B (Informative) Technical Deviations between This Part and ISO 683-2:2016 and Their Justifications
Annex C (Informative) Designation of Steels Given in This Part and of Comparable Grades Covered in Foreign Standards
Annex D (Normative) Sampling Location for Mechanical Property Test
