GB/T 34497-2023 Copper and copper alloy strip and foil for terminal connectors
1 Scope
This document specifies the classification and labeling, technical requirements, test methods, inspection rules, marking, packaging, transportation, storage, accompanying documents and the content of an order form regarding copper and copper alloy strip and foil for terminal connectors.
This document is applicable to copper and copper alloy strip and foil for terminal connectors (hereinafter referred to as "strip and foil" or “strips and foils”).
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 232 Metallic materials - Bend testing method
GB/T 351 Metallic materials - Resistivity measurement method
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 Wrough heavy non-ferrous metal products - Packing, marking, transportation, storing and certificate of quality
GB/T 26303.3 Measuring methods for dimensions and shapes of wrought copper and copper alloys - Part 3: Sheets and strips
GB/T 32791 Electromagnetic (eddy-current) examination method for electrical conductivity of copper and copper alloys
GB/T 34505-2017 Copper and copper alloy materials - Tensile testing at room temperature
GB/T 39152 Test method of the bending stress relaxation for copper and copper alloy
YS/T 482 Methods for analysis of copper and copper alloys - The spark discharge atomic emission spectrometry
YS/T 483 Methods for analysis of copper and copper alloys - X-Ray fluorescence spectrometric (wavelength dispersive)
YS/T 668 The sampling method of physical and chemical testing for copper and copper alloy
3 Terms and definitions
There are no terms and definitions defined in this document.
4 Classification and labeling
4.1 Product classification
The designations, codes, tempers and specifications of the strips and foils shall be as specified in Table 1.
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4.2 Labeling examples
A product shall be labeled in the order of product name, number of this document, designation (or code), temper, dimensional precision and specifications. Labeling examples are given below:
Example 1:
A strip made of T2 (T11050), with a temper of H02, a dimensional precision of ordinary grade, a thickness of 0.25mm, and a width of 50mm, is labeled as:
Strip GB/T 34497-T2H02-0, 25×50
Or Strip GB/T 34497-T11050H02-0, 25×50
Example 2:
A high-precision foil made of T2 (T11050), with a temper of H02, a dimensional precision of high-precision grade, a thickness of 0.10mm, and a width of 50mm, is labeled as:
Foil GB/T 34497-T2H02 H-0, 10×50
Or Foil GB/T 34497-T11050H02 H-0, 10×50
5 Technical requirements
5.1 Chemical composition
The chemical composition of the strip and foil shall meet the requirements of GB/T 5231.
5.2 Overall dimensions and permissible deviation
Foreword II
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and labeling
5 Technical requirements
6 Test methods
7 Inspection rules
8 Marking, packaging, transportation, storage and accompanying documents
