Perforated Metal
Perforated Metal can take many shapes with numerous choices of perforations. The perforating process is perfectly adaptable to provide surprisingly satisfying design solutions, enhancing the look as well as the performance. Perforated components make products work better with holes that function several ways. Perforated metal parts work more efficiently because the perforating process is so adaptable to the designer’s requirements for perforations and their placement, material specifications and the shape of the finished part.
PRODUCT DEFINITIONS, TERMS AND SPEC INFORMATION:
Perforated Metal
Very versatile and functional depending on its shape opening and gauge and sixe
Can be strong depending on gauge
Can vent, screen and filter a variety of solids
Is lightweight but durable
Its openings can be chosen for optical requirements appealing to to variour architectural requirements
Perforated Metal also helps to diffuse light and air. If manufacturing a product that needs to be lighter, for the right product application, use perforated metal — metal sheet retains a high percentage of it’s strength after it’s perforated but loses a lot of costly weight.
Important Terms for Perforated Metal:
Perforations
Round Perforations: Staggered (60 degree pattern) is standard.
Variations include 45 degree staggered, and straight line pattern.
Square Perforations: Staggered or straight line pattern.
Slotted Perforations: Side staggered, end staggered, or straight lines.
Slotted perforations will be round end slots; specify if square end slots are required.
Other Perforations: Available upon request.
Spacing Perforations
Spacing for large perforations will be designated be either Centers of perforations, or by the Open Area required. Spacing for small perforations will be designated by either Centers, or Open Area, or if more practical, by the Number of Perforations to the Square Inch.
Pattern of Perforations
Staggered Perforations, both Round & Square: Direction of the stagger will normally be the short dimension of the sheet. Straight row of hole is normally parallel to long dimension of sheet.
Slotted Perforations: The long dimension of the slots can be furnished with either the width or length of the sheet in most cases.
Margins
Perforated Stock Size Sheets & Plates: The long sides of the sheet will be supplied with minimum margins. The short sides of the sheet will have either minimum margins or no margins.
Sheets & Plates Re-sheared after Perforating: Special margins are available to specifications but they must carry a tolerance within the limits of the perforating tool.
Unfinished end pattern is standard in the industry.
Flatness of Sheets & Plates
In the majority of requirements, perforated sheets or plates can be furnished to AISI flatness tolerances. Before ordering any of the following special requirements, discuss then with our sales department:
Perforated sheets with extra wide margins.
Blank areas required within the perforated area.
Perforated sheets with very large percentage of open area.
Heavy gage metal in relation to the size of the perforation.
Special alloys.
Stretcher leveled sheets.
Specifications:
Normal type: roun hole ( staggered ) .
Material: Mild stee , GI steel , S/S304.
Size: 1m x 2m , 1.22m x 2.44m
| Thickness | Hole | Pitch | Open | size |
| (mm) | (mm) | (mm) | (%) | 1m x 2m |
| 0.5 | 0.5 | 1 | 23% | 1m x 2m |
| 0.5 | 1 | 2 | 23% | 1m x 2m |
| 0.75 | 0.75 | 1.5 | 23% | 1m x 2m |
| 1 | 2 | 4 | 23% | 1m x 2m , 4ft x 8ft |
| 1 | 4 | 6 | 40% | 1m x 2m , 4ft x 8ft |
| 1 | 5 | 8 | 35% | 1m x 2m , 4ft x 8ft |
| 1 | 6 | 9 | 40% | 1m x 2m , 4ft x 8ft |
| 1 | 8 | 12 | 40% | 1m x 2m , 4ft x 8ft |
| 1 | 10 | 14 | 46% | 1m x 2m , 4ft x 8ft |
| 1.5 | 4 | 6 | 40% | 1m x 2m , 4ft x 8ft |
| 1.5 | 5 | 8 | 35% | 1m x 2m , 4ft x 8ft |
| 1.5 | 10 | 14 | 46% | 1m x 2m , 4ft x 8ft |
| 2 | 2 | 4 | 23% | 1m x 2m , 4ft x 8ft |
| 2 | 3 | 5 | 33% | 1m x 2m , 4ft x 8ft |
| 2 | 4 | 6 | 40% | 1m x 2m , 4ft x 8ft |
| 2 | 5 | 8 | 35% | 1m x 2m , 4ft x 8ft |
| 2 | 6 | 9 | 40% | 1m x 2m , 4ft x 8ft |
| 2 | 8 | 12 | 40% | 1m x 2m , 4ft x 8ft |
| 2 | 10 | 14 | 46% | 1m x 2m , 4ft x 8ft |
| 2 | 12 | 18 | 40% | 1m x 2m , 4ft x 8ft |
| 2 | 15 | 20 | 51% | 1m x 2m , 4ft x 8ft |
| 2.5 | 2.5 | 5 | 23% | 1m x 2m , 4ft x 8ft |
| 3 | 3 | 6 | 23% | 1m x 2m , 4ft x 8ft |
| 3 | 4 | 7 | 30% | 1m x 2m , 4ft x 8ft |
| 3 | 5 | 8 | 35% | 1m x 2m , 4ft x 8ft |
| 3 | 6 | 9 | 40% | 1m x 2m , 4ft x 8ft |
| 3 | 8 | 12 | 40% | 1m x 2m , 4ft x 8ft |
| 3 | 10 | 14 | 46% | 1m x 2m , 4ft x 8ft |
| 4 | 4 | 8 | 23% | 1m x 2m , 4ft x 8ft |
| 4 | 5 | 9 | 28% | 1m x 2m , 4ft x 8ft |
| 5 | 8 | 12 | 40% | 1m x 2m , 4ft x 8ft |
| 5 | 10 | 14 | 46% | 1m x 2m , 4ft x 8ft |
