This standard specifies the classification and designation, order details, diameter, shape and permissible deviation, manufacturing method, technical requirements, test methods and inspection rules, packaging, marking and quality certificate of wire for quenched and tempered spring (hereinafter referred to as wire).
This standard is applicable to the manufacture of various quenched and tempered carbon and low alloy wires with circular cross sections, which are used for various mechanical springs.
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 Method of Sampling Steel for Determination of Chemical Composition and Permissible Variations for Product Analysis
GB/T 223.5 Steel and Iron - Determination of Acid-soluble Silicon and Total Silicon Content - Reduced Molybdosilicate Spectrophotometric Method
GB/T 223.11 Iron Steel and Alloy - Determination of Chromium Content - Visual Titration or Potentiometric Titration Method
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 223.19 Methods for Chemical Analysis of Iron Steel and Alloy; the Neocuproine-chloroform Extraction Photometric Method for the Determination of Copper Content
GB/T 223.58 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 Methods for Chemical Analysis of Iron, Steel And Alloy the Perchloric Acid Dehydration Gravimetric Method for the Determination of Silicon 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 224 Determination of Depth of Decarburization of Steel
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 2103 General Requirements for Acceptance，Packing，Marking and Quality Certification of Steel Wire
GB/T 2976 Metallic Materials C Wire-wrapping Test
GB/T 4336 Carbon And Low-alloy Steel - Determination of Multi-element Contents - Spark Discharge Atomic Emission Spectrometric Method (Routine Method)
GB/T 10561 Steel-Determination of Content of Non-metallic Inclusion - Micrographic Method Using Standard Diagrams
GB/T 13298 Inspection Methods of Microstructure For Metals
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
3 Classification and Designation
3.1 Classification
3.1.1 According to the working condition, wire is classified into the static, medium fatigue and high fatigue types.
3.1.2 According to the supply tensile strength, wire is classified into the low tensile strength, medium tensile strength and high tensile strength.
3.2 Designation
GB/T 18983-2017 The following standards are cited：
