1 Scope
This standard specifies the classification and labeling, technical requirements, test methods, inspection rules, markings, packaging, transportation, storage, quality certificates, and purchase orders (or contracts) of copper and copper alloy cold-drawn rod and bar.
This standard applies to round, rectangular, square and hexagonal copper and copper alloy cold-drawn rod and bar for general use (hereinafter referred to as rod and bar).
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 230.1 Metallic materials — Rockwell hardness test — Part 1: Test method
GB/T 231.1 Metallic materials — Brinell hardness test — Part 1: Test method
GB/T 2828.1 Sampling procedures for inspection by attribute — Part1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection
GB/T 3310 Ultrasonic testing method of copper and copper alloy bars
GB/T 4340.1 Metallic materials — Vickers hardness test — Part 1:Test method
GB/T 5121 (all parts) Methods for chemical analysis of copper and copper alloys
GB/T 5231 Designation and chemical composition of wrought copper and copper alloys
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 8888 Wrought heavy non-ferrous metal products-packing, marking, transportation, storing and certificate of quality
GB/T 10567.1 Wrought copper and copper alloys — Detection of residual stress — Mercury nitrate test
GB/T 10567.2 Wrought copper and copper alloys — Detection of residual stress — Ammonia test
GB/T 26303.3 Measuring methods for dimensions and shapes of wrought copper and copper alloy — Part 2: Rod, wire and profile
GB/T 34505-2017 Copper and copper alloy materials — Tensile testing at room temperature
YS/T 336 Method of fracture test for tube and rod of copper and copper alloys, nickel and nickel alloys
YS/T 482 Methods for analysis of copper and copper alloys — The atomic emission spectrometry
YS/T 483 Methods for analysis of copper and copper alloys — X-Ray fluorescence spectrometric (wavelength dispersive)
YS/T 668 Sampling method of physical and chemical testing for copper and copper alloys
3 Classification and labeling
3.1 Product classification
The designation, code, state and specification of rod and bar shall meet those specified in Table 1. The width-height ratio of rectangular bars shall meet those specified in Table 2.
Foreword i
1 Scope
2 Normative references
3 Classification and labeling
4 Technical requirements
5 Test methods
6 Inspection rules
7 Marking, packaging, transportation, storage and quality certificate
8 Order form (or contract) contents
1 Scope
This standard specifies the classification and labeling, technical requirements, test methods, inspection rules, markings, packaging, transportation, storage, quality certificates, and purchase orders (or contracts) of copper and copper alloy cold-drawn rod and bar.
This standard applies to round, rectangular, square and hexagonal copper and copper alloy cold-drawn rod and bar for general use (hereinafter referred to as rod and bar).
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 230.1 Metallic materials — Rockwell hardness test — Part 1: Test method
GB/T 231.1 Metallic materials — Brinell hardness test — Part 1: Test method
GB/T 2828.1 Sampling procedures for inspection by attribute — Part1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection
GB/T 3310 Ultrasonic testing method of copper and copper alloy bars
GB/T 4340.1 Metallic materials — Vickers hardness test — Part 1:Test method
GB/T 5121 (all parts) Methods for chemical analysis of copper and copper alloys
GB/T 5231 Designation and chemical composition of wrought copper and copper alloys
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 8888 Wrought heavy non-ferrous metal products-packing, marking, transportation, storing and certificate of quality
GB/T 10567.1 Wrought copper and copper alloys — Detection of residual stress — Mercury nitrate test
GB/T 10567.2 Wrought copper and copper alloys — Detection of residual stress — Ammonia test
GB/T 26303.3 Measuring methods for dimensions and shapes of wrought copper and copper alloy — Part 2: Rod, wire and profile
GB/T 34505-2017 Copper and copper alloy materials — Tensile testing at room temperature
YS/T 336 Method of fracture test for tube and rod of copper and copper alloys, nickel and nickel alloys
YS/T 482 Methods for analysis of copper and copper alloys — The atomic emission spectrometry
YS/T 483 Methods for analysis of copper and copper alloys — X-Ray fluorescence spectrometric (wavelength dispersive)
YS/T 668 Sampling method of physical and chemical testing for copper and copper alloys
3 Classification and labeling
3.1 Product classification
The designation, code, state and specification of rod and bar shall meet those specified in Table 1. The width-height ratio of rectangular bars shall meet those specified in Table 2.
Contents of GB/T 4423-2020
Foreword i
1 Scope
2 Normative references
3 Classification and labeling
4 Technical requirements
5 Test methods
6 Inspection rules
7 Marking, packaging, transportation, storage and quality certificate
8 Order form (or contract) contents
