T/CAEE 052-2026 High-Strength and High-Conductivity Copper Alloy Strip and Foil for New Energy Vehicles
T/CAEE 052-2026 High-Strength and High-Conductivity Copper Alloy Strip and Foil for New Energy Vehicles
Basic Information
Scope
This document specifies the terms and definitions, classification and marking, specifications, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage, and order form requirements for high-strength and high-conductivity copper alloy strip foils used in new energy vehicles. This document is applicable to high-strength and high-conductivity copper alloy strip foils used in the new energy vehicle field for manufacturing electrical connectors, wiring harnesses, battery plates, and other components. 6 Test Methods Chemical Composition Analysis The chemical composition analysis of strip foils shall be conducted in accordance with the provisions of GB/T 5121 (all parts) or YS/T 482 or YS/T 483. The arbitration analysis of chemical composition shall be conducted in accordance with the provisions of GB/T 5121 (all parts). Dimensions and Permissible Deviations The inspection of the dimensions and permissible deviations of strip foils shall be conducted in accordance with the provisions of GB/T 26303.3. Mechanical Properties The tensile test of strip foils shall be conducted in accordance with the provisions of GB/T 34505-2017, with the sample number being P01 in Table 3 of GB/T 34505-2017. The Vickers hardness test of strip foils shall be conducted in accordance with the provisions of GB/T 4340.1. Electrical Properties The conductivity of strip foils shall be conducted in accordance with the provisions of GB/T 32791 or GB/T 351, and the arbitration shall be conducted in accordance with the provisions of GB/T 351. Bending Test The bending test of strip foils shall be conducted in accordance with the provisions of GB/T 232. Bending Stress Relaxation The bending stress relaxation test of strip foils shall be conducted in accordance with the provisions of GB/T 39152. Softening Temperature Resistance The softening temperature resistance of strip foils shall be conducted in accordance with the provisions of GB/T 33370. Residua