What you need to know about expanded metals

Materials | Expansion ratio | Openness/translucency |
Production width | Mesh dimensions | Dimension specification

1. Materials

Sheet steel , stainless steel, aluminium, copper, brass.
Other materials such as gold, silver or bronze upon request. .

2. Expansion ratio

The expansion factor refers to the relationship between the material
used and the resulting sheet length. It is calculated by dividing the
mesh width (SWD) by twice the bond width.

Example:

Mesh 4415/3020 --> 15:(3*2)=2.5
2.5m of expanded metal can be produced from one metre of material.

3. Openness/translucency

The ratio between material and open area / light area
is calculated approximately using the expansion ratio:

(expansion factor - 1) : expansion factor x 100 = Qf %

4. Production width

Expanded metal can be produced in sheets up to 2500mm
wide, depending on the material and the mesh shape.

5. Mesh dimensions

The mesh is measured from the middle of one bond to the
middle of the next. In the case of long-bond mesh, this is
from the middle of the non-expanded strand, over the
opening and on to the middle of the next strand.

6. Dimension specification

The sheet dimensions are specified with the greater
dimension - the LWD - running parallel to the sheet width.