Number: MT-W-002
Brand: Standard
Introduction:
Tinned copper clad steel wire, commonly known as tinned iron wire, referred to as tinned CP wire, is mainly used for electronic component leads, PCB board jumpers, and electronic guide pins; it is made of low-carbon steel as the core wire, annealed and softened to a soft steel wire, chemically electroplated with a copper layer, and then hot-dipped with a lead-free tin-based alloy; its production cost is relatively low, and it is the best substitute for tinned copper wire.
Product performance:
| No. | Item | Characteristics |
| 1 | Appearance |
The surface is bright and uniform in color, without tin removal, black spots, cracks, burrs, yellowing, tin nodules and other abnormalities. |
| 2 | Wire diameter | The allowable deviation is ±0.01mm. |
| 3 | Tin plating thickness | Thin plating: 1.5-2.5mm; Medium plating: 2.5-4.0mm; Thick plating: 4 mm or more |
|
4 |
Elongation | ≥15% (or as required by customers) |
|
5 |
Conductivity | Low conductivity: 16-18%; Medium conductivity: 18-22%; High conductivity: 24% or more |
|
6 |
Repeated bending | ≥4 times |
|
7 |
Tensile strength | ≥245KG/mm2 |
|
8 |
Solderability | 250±2℃ lead-free tin immersion 2±0.5s, new tin can adhere to more than 95%. |
|
9 |
Aging test | Baking at 200±5℃ for 1 hour, no yellowing or blackening. |
|
10 |
Continuity | After three cycles of hydrochloric acid and sodium polysulfide solution testing, there is no copper exposure and black spots. |
|
11 |
Bonding strength | After winding more than 6 times and immersing in saturated sodium polysulfide, there is no crack or blackening. |
Packaging method:
There are three types of product packaging methods: rubber shaft, rubber barrel, and paper tube;
1. Rubber shaft packaging: small rubber shaft: 3-5kg; medium rubber shaft: 12-18kg; large rubber shaft: 25-30kg;
2. Rubber barrel packaging: 15-25kg;
3. Paper tube packaging: 18-25kg.
