The difference between ordinary copper stranded wire and tinned copper stranded wire is mainly reflected in the following aspects: 1. Material: ordinary copper stranded wire is made of pure copper or oxygen-free copper, and tinned copper stranded wire is on the basis of ordinary copper stranded wire, the copper surface is tinned. Tin coating can improve the oxidation resistance and welding performance of copper stranded wire. 2. Appearance: The surface of ordinary copper stranded wire is smooth, red and yellow; The surface of tinned copper strand is silver-white and shiny. 3. Performance: tinned copper
| category | material quality | coating | Specification (mm) | state | Tensile strength (Mpa) | Conductivity (% IACS) |
|---|---|---|---|---|---|---|
| Copper tin alloy | CuSn0.1 | Bare wire | N/0.05-0.30 | A/H | ≥ 280/500 | ≥ 93/85 |
| Tin plating | ||||||
| Silver plating | ||||||
| CuSn0.3 | Bare wire | N/0.025-0.30 | A/H | ≥ 350/600 | ≥ 79/70 | |
| Tin plating | ||||||
| Silver plating | ||||||
| CuSn0.4 | Bare wire | N/0.05-0.30 | A/H | ≥ 380/650 | ≥ 75/68 | |
| Tin plating | ||||||
| Silver plating | ||||||
| CuSn0.7 | Bare wire | N/0.05-0.30 | A/H | ≥ 400/700 | ≥ 70/65 | |
| Tin plating | ||||||
| Silver plating | ||||||
| Copper magnesium alloy | CuMg0.2 | Bare wire | N/0.025-0.30 | A/H | ≥ 350/600 | ≥ 80/72 |
| Tin plating | ||||||
| Silver plating | ||||||
| CuMg0.4 | Bare wire | N/0.05-0.30 | A/H | ≥ 380/650 | ≥ 75/68 | |
| Tin plating | ||||||
| Silver plating | ||||||
| CuMg0.5 | Bare wire | N/0.05-0.30 | A/H | ≥ 400/700 | ≥ 70/62 | |
| Tin plating | ||||||
| Silver plating | ||||||
| Copper silver alloy | CuAg0.1 | Bare wire | N/0.025-0.30 | A/H | ≥ 280/430 | ≥ 97/90 |
| Silver plating | ||||||
| CuAg0.6 | Bare wire | N/0.025-0.30 | A/H | ≥ 300/500 | ≥ 95/88 | |
| Silver plating | ||||||
| CuAg1 | Bare wire | N/0.025-0.30 | A/H | ≥ 320/600 | ≥ 90/85 | |
| Silver plating | ||||||
| CuAg2 | Bare wire | N/0.025-0.30 | A/H | ≥ 360/750 | ≥ 85/80 | |
| Silver plating | ||||||
| CuAg4 | Bare wire | N/0.015-0.30 | A/H | ≥ 410/850 | ≥ 80/75 | |
| Silver plating |
Note: 1 "N" means the number of stranded conductors 2. The above data are for reference only. 3 "A" stands for soft, "H" for hard
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