Expanded metal is a type of sheet metal that has been cut and stretched to form regular patterns (usually diamond shapes). It is usually made from materials such as steel, stainless steel or aluminium plates.
It is one of the most versatile materials around that can be used for commercial, industrial, interior design or architectural purposes.
As an expanded metal mesh supplier in Singapore, our materials come in various thickness and sizes.
How is Expanded Metal Made?
1. Knife is placed in machine
The expanding machine is fitted with a knife that determines the pattern of the material.
2. Sheet is placed in machine
The metal sheet used to make expanded metal is then passed through the machine.
3. Pattern is formed on the material
The machine cuts and stretches the material to form an even diamond-shaped pattern that is of uniform size and thickness.
4. Material is cut into sheets
The finished product is wounded into coils or cut into sheets.
Benefits of Expanded Metal
Expanded metal mesh is made by flattening the material into a single and solid piece of metal. This makes it stronger and gives it the ability to withstand a heavier load.
Easy to install
The material can be shaped easily to fit a variety of purposes.
The anti-skid property of expanded metal provides a strong and safe grip for its users.
Provides good visibility
Similar to chain link fences, the expanded metal fences provide good visibilty into restricted areas. This is important for areas such as walkways or maintenance platforms where visibility is crucial.
Allows good air and water flow
Good air and water flow are essential for parts washing in manufacturing processes. This feature allows parts to be cleaned and dried properly, preventing the formation of residue.
Material wastage is kept to a minimum in the production process, making expanded metal a more cost-efficient alternative to other materials.
What is Expanded Metal Used For?
Expanded metal is commonly used as metallic lath to support plaster or stucco. Additionally, it is also used for
- exhibition stands,
- protecting enclosures,
- safety barricades,
- outer layer of filter and grilles, and
- commercial walkways.
SWM X LWM (mm)
SWM X LWM (mm)
Common Expanded Metal Terminology
An expanded metal pattern that is made from heavier gauge low carbon steel plates. It is a strong, lightweight material that is mostly used for pedestrian traffic.
- Short way of design (SWD)
The height of an expanded metal strand.
- Long way of design (LWD)
The length of an expanded metal strand.
Thickness of the expanded metal mesh strand.
- Strand width
How wide an expanded metal mesh strand is.
FAQs About Expanded Metal
In total, there are 4 main types of expanded metals:
- Standard: used in warehouse enclosures and lockers as it is extremely strong and durable
- Flattened: smooth, levelled surface that is suitable to be used as flooring and fencing
- Mesh: usually used for decorative and architectural purposes like room dividers and grills
- Grating: heavy-duty uses such as stairs and areas with high pedestrian traffic
Expanded metal may rust in harsh environmental conditions. However, the possibility of this happening is still rather low.
If it does rust, simply remove the rust and the material can still be used.
Some methods to remove rust include
- shot blasting using mechanical equipment
- pickling / chemical removal
- manual removal