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Many different types of perforated metal holes. | Generally, perforated metal hole patterns include round holes, square holes, slotted holes, hexagonal holes and decorative holes. Various hole patterns provide additional aesthetic performance. With various materials and hole patterns, perforated metal can be used as architectural metal or decorative metal. It is mainly applied for screen, guard, filter, vent, signage, partition, enclosure, building facade and noise barrier. As a leading manufacturer and supplier of perforated metal, we can provide an extensive range of perforated metal products that satisfy your requirements. Please don't hesitate to contact us. |
General: - Metal material: plain steel, mild steel, carbon steel, stainless steel (302, 304, 304L, 316, 316L), aluminum, copper, brass, pre-galvanized steel, hot or cold galvanized steel, etc. - Surface treatment: electric galvanized, hot dipped galvanized, PE/PVC coated, powder coating, oxidation treatment etc. - Thickness: 0.2 - 25 mm. - Width by length: 1000 × 2000 mm to 2000× 6000 mm or according to customer's requirements. - Standard sizes (mm): 1000 × 2000, 1000 ×2400, 1200 × 2400. - Hole patterns: round hole, square hole, slotted hole, hexagonal hole, decorative hole. - Hole diameter: 0.2 - 100 mm. - Margin types: safe margins or no-margins Packing: - Coiled plate: in water-proof plastic bags then in wood pallets. Flat plate: in plastic film then in wood pallets. - SKU Type: sheet, plank, panel, coil, piece and each. Tolerances: see table 1 - 5. Square hole: - Thickness: 11-22 gauge. - Hole size: 0.2" - 0.75". - Hole centers: 0.5" - 1". - Hole pattern: staggered or straight row. - Open area: 11% - 56%. - Width: 36" - 48". - Length: 24" - 120". |
Slotted hole: - Thickness: 14-22 gauge. - Hole pattern: side staggered and straight row. - Slot width: 0.125" - 0.2". - Slot length: 0.1" - 0.75". - Slot shape: round end and square end. - Slot side bar: 0.125" - 0.25". - Slot end bar: 0.125" - 0.25". - Open area: 41% - 74%. - Panel width: 36". - Panel length: 24" - 120". Hexagonal hole: - Thickness: 14-22 gauge. - Hole size: 0.25" - 0.5". - Hole centers: 0.2813" - 0.5625". - Hole pattern: staggered row. - Open area: 35% - 80%. - Width: 25" - 48". - Length: 24" - 120". Round hole: - Hole size: 0.027" - 1.0". - Hole centers: 0.05" - 1.25". - Hole pattern: staggered and straight row. - Sheet width: 24" - 60". - Sheet length: 24" - 144". - Open area: 5% - 63%. - Decorative hole: - Open area: 35% - 68%. - Thickness: 11 - 24 gauge. - Width: 36" - 48". - Length (span for grating): 24" - 120". |
Table 1 Steel Edge Trims | ||||||
Product code | Material | Standard Length | Weight "W" | Gap "G" | Thickness "T" | Weight (kg/length) |
SET 1 | Steel | 3000 | 12 | 2 | 1.0 | 0.61 |
SET 2 | Steel | 3000 | 19 | 4 | 1.2 | 1.22 |
Table 2 Round Hole Perforation Technical Details | ||
Arrangement of Hole | Shape of Hole | Identification of Hole Pattern |
Triangular Pitch | R | R T |
Calculation of open area in % |
R2× 90.69/T2 |
|
Number of holes per m2 |
1,154,700/T2 |
|
Rectangular Pitch | R | R U |
Calculation of open area in % |
R2 × 78.5/(U × U ) 1 2 |
|
Number of holes per m2 |
1,000,000/(U1 × U2) |