Q235 ASTM A36 25X5mm 30X3mm 30X5mm 40X5mm Gi Steel Serrated Grating Mesh for Drainage Factory Price
Steel Bar Grating with bearing bars thicker than 3/16" is considered to be "Heavy Duty" and carries the designation prefix "Type HD". Available bar thicknesses are 1/4" (6.4mm), 5/16" (7.9mm) and 3/8" (9.5mm) in either plain or serrated surface. Standard depths range from 1" (25mm) up to 4" (102mm), although larger sizes are available upon request.
Weld Heavy Duty Steel Bar Grating is commonly used for floor trenches and sump covers exposed to heavy equipment traffic. It is used extensively throughout mining, power generation, highways, airfields, and on truck terminal loading docks and ramps. It is suitable for large single span conditions or where grating must support extreme loads.
| Bearing Bar Size (mm) | Weight (kg/m²) | Sec. Mod. per 305mm of width | Span: Load | Span:305 |
|---|---|---|---|---|
| 25×6.4 | 47.4 | 51.3 | 6900 | U | C | 269 | 41 |
| 25×7.9 | 60.5 | 65.9 | 8816 | U | C | 344 | 52 |
| 25×9.5 | 68.4 | 72.7 | 10350 | U | C | 403 | 61 |
| 32×6.4 | 58.1 | 62.0 | 10780 | U | C | 420 | 64 |
| 32×7.9 | 74.7 | 80.1 | 13798 | U | C | 537 | 81 |
| 32×9.5 | 84 | 88.9 | 16170 | U | C | 630 | 95 |
| 38×6.4 | 68.4 | 72.7 | 15520 | U | C | 604 | 92 |
| 38×7.9 | 88.4 | 93.7 | 19861 | U | C | 774 | 117 |
| 38×9.5 | 100.1 | 105.0 | 23300 | U | C | 907 | 137 |
| 44×6.4 | 115.7 | 121.1 | 31700 | U | C | 823 |
| 44×7.9 | 102.5 | 107.9 | 27055 | U | C | 1053 |
| 44×9.5 | 115.7 | 121.1 | 31700 | U | C | 1234 |
- Fencings for car-parks, buildings and roads; drainage trench covers and drainage pit covers for highways
- Flooring in various bridges such as railway bridge sidewalks, over-bridges across the street
- Rotation ways, channels, and platforms for pump rooms and engine rooms in various ships
- Platforms for oil extraction sites, car washing sites and air towers
The sizes 6 meter × 1 meter, 5.8 meter × 1 meter are the common sizes for Asian and Middle East markets. The plain galvanized steel grating is commonly used on bridges, refineries, power plants, sewage treatment plants and similar applications.
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