Expanded Metal Mesh
One sheet slit and stretched into mesh - no wire, no welds, nothing to unravel.
Perforated, Expanded & Grating
Perforated Metal Sheet in Fifteen Standard Hole Patterns
Hole size, pitch, open area and the thicknesses each pattern can be punched in - all published.
Product Overview
What Perforated Metal Is and Who Buys It
Perforated metal is sheet punched with a repeating hole pattern. Anwang offers standard perforated patterns and decorative patterns.
It is used in filter elements, medicine manufacturing, filtering, breeding, batteries, mechanical protection, handicrafts, high-grade sound boxes, decoration, children's seating, small baskets and shelves.
Fifteen round-hole patterns are held as standard, each with its hole size, pitch, open area and the sheet thicknesses it can be punched in.
Key Benefits
- Fifteen patterns spanning 15% to 46% open area, so flow and strength can be traded deliberately.
- A thickness compatibility matrix: each pattern shows which of the six thicknesses it can be punched in.
- Standard and decorative patterns from the same supplier.
- Backed by a mesh factory, so a perforated support plus a fine woven cloth can ship as one order.
Who It Is For
Buyers Who Specify Perforated Metal
- Filter element manufacturers
- Pharmaceutical and food equipment builders
- Battery and electronics assemblers
- Machine builders needing protective panels
- Acoustic and interior fabricators making speaker grilles and decorative panels
Problems It Solves
Open area drives both flow and stiffness. Picking a pattern without it means redesigning the part after the first sample.
Not every hole pattern can be punched in every thickness - a 0.80 mm hole on 2.00 mm pitch cannot be run in heavy sheet.
Decorative work and filtration work need different patterns; buying from a supplier who only offers one forces a compromise.
Filter elements made from sheet with burred holes clog and tear the media behind them.
Application Scenarios
Perforated Metal in Service
Every photograph below is from our own product record.
Technical Features
Perforated Metal Specifications
Figures published here are the ones printed in our own product record. Anything we have never published is marked TBC and confirmed in writing before you order.
- Pattern types
- Standard perforated patterns and decorative patterns
- Hole sizes
- 0.80, 1.00, 1.20, 1.50, 1.80, 2.00, 2.50, 3.00 mm
- Pitch
- 2.00 mm to 5.00 mm
- Open area
- 15% to 46%
- Sheet thickness
- 0.4, 0.5, 0.8, 1.0, 1.2, 1.5 mm
- Highest open area
- 46% at R2.5 T3.5
- Typical uses
- Filter elements, medicine making, filtering, breeding, batteries, mechanical protection, handicrafts, sound boxes, decoration, seating, baskets and shelves
- Base material
- TBC - confirm carbon steel, stainless or aluminium with your enquiry
Perforated Metal Hole Patterns Open Area and Thickness
| DESCRIPTION | HOLE SIZE | PITCH | OPEN AREA | THICKNESS | |||||
|---|---|---|---|---|---|---|---|---|---|
| (mm) | (mm) | 0.4mm | 0.5mm | 0.8mm | 1.0mm | 1.2mm | 1.5mm | ||
| R0.8 T2 | 0.80 | 2.00 | 15% | ** | ** | ** | |||
| R1 T2 | 1.00 | 2.00 | 23% | ** | ** | ** | ** | ||
| R1.2 T2.25 | 1.20 | 2.25 | 26% | ** | ** | ** | |||
| R1.2 T2.5 | 1.20 | 2.50 | 21% | ** | ** | ** | |||
| R1.5 T2.75 | 1.50 | 2.75 | 27% | ** | ** | ** | ** | ||
| R1.5 T3 | 1.50 | 3.00 | 23% | ** | ** | ** | ** | ||
| R1.8 T3.5 | 1.80 | 3.50 | 24% | ** | ** | ** | ** | ** | |
| R2 T3 | 2.00 | 3.00 | 40% | ** | ** | ** | |||
| R2 T3.5 | 2.00 | 3.50 | 30% | ** | ** | ** | ** | ||
| R2 T4 | 2.00 | 4.00 | 23% | ** | ** | ** | ** | ** | |
| R2.5 T3.5 | 2.50 | 3.50 | 46% | ** | ** | ** | ** | ** | |
| R2.5 T4 | 2.50 | 4.00 | 35% | ** | ** | ** | ** | ** | |
| R2.5 T4.5 | 2.50 | 4.50 | 28% | ** | ** | ** | ** | ** | |
| R2.5 T5 | 2.50 | 5.00 | 23% | ** | ** | ** | ** | ** | |
| R3 T5 | 3.00 | 5.00 | 33% | ** | ** | ** | ** | ** |
A double asterisk marks the sheet thicknesses in which that pattern can be punched. Download this table as CSV
Materials
Material Options
The source catalogue specifies this product by pattern rather than by alloy, so the base material is confirmed per order. State whether you need carbon steel, stainless steel or aluminium with your enquiry and the pattern will be matched to a thickness that can be punched in that material.
Quality Control
Hole size, pitch and open area are checked against the pattern code, and the sheet is checked for flatness after levelling. For filter elements, confirm the deburring requirement in writing - it is the property most often assumed and least often specified.
Certifications
- ISO9001 quality management
- Import and export licence
Customization Options
- Any of the fifteen standard patterns, plus decorative patterns
- Panel sizes to order
- Thickness from 0.4 mm to 1.5 mm where the pattern allows
- Rolled, formed or welded into cylinders and elements
- Material to specification
Manufacturing Process
How Perforated Metal Is Made
Coil selection
Sheet selected in the ordered thickness between 0.4 mm and 1.5 mm.
Punching
The ordered pattern is punched on a perforating press.
Levelling
Sheet is levelled to take out punching stress.
Deburring
Hole edges are cleaned so the sheet does not cut media or hands.
Cutting
Sheet cut to the ordered panel size.
Comparison
How It Compares
| Product | Where It Fits |
|---|---|
| Perforated metal | Punched sheet; exact hole geometry; rigid; open area 15-46% |
| Expanded metal mesh | Slit and stretched sheet; no material lost; heavier gauges up to 8 mm |
| Woven wire mesh | Finer apertures than punching can reach; not a rigid sheet |
Use Guide
- Pick open area first if flow matters, hole size first if retention matters.
- Check the thickness columns before committing - not every pattern runs in every gauge.
- Allow for a solid margin around the perforated field if the panel is bolted or welded.
- Roll perforated sheet across the hole rows, not along them, for a rounder cylinder.
- For fine filtration, use perforated sheet as the support and a woven cloth as the filter layer.
FAQ
Perforated Metal Questions Buyers Ask
Answers taken from our own product record. Where a figure has never been published, we say so instead of guessing.
What is the highest open area you offer?
46%, on the R2.5 T3.5 pattern - 2.50 mm holes on a 3.50 mm pitch.
What thicknesses can be perforated?
0.4, 0.5, 0.8, 1.0, 1.2 and 1.5 mm. Which thicknesses apply depends on the pattern; the table on this page marks the valid combinations.
Do you offer decorative patterns as well?
Yes - the catalogue covers both standard perforated patterns and decorative patterns.
Can it be rolled into filter cylinders?
Yes, filter elements are one of the listed applications. Send the finished diameter, length and pattern with the enquiry.
What base material is used?
Confirmed per order. Tell us carbon steel, stainless or aluminium and we will match the pattern to a punchable thickness.
Can you supply cut panels rather than full sheets?
Yes. Give the finished panel size and quantity with your enquiry.
Get A Price For Perforated Metal
Give us the specification, the quantity and the destination port. We reply with price, packing and the full specification written out.