3004 aluminum sheet coil is also a series of AL-Mn alloy. it has higher strength than 3003 aluminum sheet coil, good formability, solubility, and corrosion resistance; it has better forming characteristics, high corrosion resistance, good weldability, and electrical and thermal conductivity; After the cold working method, its performance strength is higher than that of 3003 aluminum sheet coil, and the surface is smoother; because of its better electrical and thermal conductivity, and better surface flatness, it can be used as the PCB aluminum entry sheet with higher flatness requirements.
2 The product specifications of 3004 PCB aluminum entry sheet
* Alloy: 3004
* Temper: H18, H19
* Thickness: 0.12~0.25mm
* Width*Length: 790~1300mm or produced by Coiled
* Thickness tolerance (mm): +/-5%
* Width tolerance (mm): +0.5 /-0mm
* Length tolerance (mm): +0.5 /-0mm
* Diagonal tolerance (mm): ≤0.5 mm
* Standing specifications (specification):
1041mm x 1092mm, 940mm x 1244mm, 1041mm x 1244mm, 1092mm x1244mm, etc.
3 The product chemical composition and mechanical properties of 3004 PCB aluminum entry sheet
1)The Product chemical composition of 3004 PCB aluminum entry sheet
| Alloy | Si | Fe | Cu | Mn | Mg | Cr | Ni | Zn | V | Ti | Zr | Other | AL | |
| single | total | |||||||||||||
| 3004 | 0.3 | 0.7 | 0.25 |
1.0 -1.5 |
0.8 -1.3 |
- | - | 0.25 | - | - | - | 0.05 | 0.15 | Remainder |
2)The Product mechanical properties of 3004 PCB aluminum entry sheet
| Alloy | Temper |
Thickness (mm) |
Mechanical properties | |||
| Tensile Strength（Mpa） |
Yield strength （Mpa） |
Elongation (%) |
||||
| standard value | standard value | A | A50mm | |||
| Not less than | ||||||
| 3004 | H18 | 0.12-0.20 | 260 | -- | -- | 1 |
| 0.20-0.25 | 260 | 230 | -- | 1 | ||
| H19 | 0.12-0.20 | 270 | -- | -- | 1 | |
| 0.20-0.25 | 270 | 240 | -- | 1 | ||
4 The product features of 3004 PCB aluminum entry sheet
1) 3004 PCB aluminum entry sheet has better forming processing characteristics, high corrosion resistance, good solderability and electrical and thermal conductivity;
2) The performance strength of 3004 PCB aluminum entry sheet is higher than that of 3003 aluminum sheet coil, and the surface is more smooth;
3) The 3004 PCB aluminum entry sheet can quickly take away the heat generated during drilling due to its better thermal conductivity and better flatness of the board surface.
5 The application of 3004 PCB aluminum entry sheet
3004 PCB aluminum entry sheet is used for ordinary circuit board drilling with higher flatness of the sheet surface and higher diagonal requirements.
