clad aluminum strip sheet
Author:Frank Time:2023-05-17
clad aluminum strip sheet comprises of a core alloy clad on 1 or 2 sides with a lower melting aluminum-silicon (Al-Si) alloy. This thin layer, usually makes up 5 % to 10 % of the total thickness of the brazing sheet.
It melts and flows during the brazing process, to provide upon cooling a metallic bond between the components. It is common that the braze clad alloy are from the AA 4xxx series or more particularly AA 4343 (Al-6.8~8.2 wt.% Si).
However, if larger fillets are desirable, or if in a situation where brazing is likely to occur at lower temperatures, AA4045 is the preferred choice.
| Dimensions | ||
|---|---|---|
| Strips | Sheets | |
| Thickness | 0.051mm--3.0mm | 0.4mm--6.35mm |
| Width | 6mm--1600mm | 500--1600mm |
| Length | Max. 10000mm | |
| Edge quality | Trimmed | Trimmed and slit; sawn |
| Inside diameter | 305mm, 405mm, 505mm Paper core, Aluminium core, without core. | |
| Outside diameter | Max. 1600mm without connect point | |
| cladding | |
|---|---|
| cladding | One side; Both sides |
| cladding rate | 5%, 7.5%, 10%, 13%, 15% (other clad percentages available upon request) |
| cladding tolerance |
cladding thickness of 1.5%--<4%: +/-0.6 cladding thickness of 4.0--6.0%: +/-1.0 cladding thickness of 6.0--<=12.0%: +/-1.5 cladding thickness of 12.0--20.0%: +/-2.0 |
| Surface | |
|---|---|
| Quality |
Mill finish; for thickness 0.3--3.5mm, chemically degreased |
| Marking | Ink marking |
1> Tolerance according to EN and ASTM.
2> Higher thickness on request.
3> Special dimensions , tolerances, and alloys on request.
