Steel grating, also known as bar grating or metal grating, is an open grid assembly of metal bars. The bearing bars run in one direction and are spaced by rigid attachment to perpendicular cross bars or by bent connecting bars extending between them. This design is intended to hold heavy loads with minimal weight. Steel grating is widely used for floors, mezzanines, stair treads, fencing, trench covers, and maintenance platforms in factories, workshops, motor rooms, trolley channels, heavy loading areas, boiler equipment, and heavy equipment areas.
Common Steel Grating Specification
| Bearing bar pitch | cross bar pitch | bearing bar size ( depth*thickness) |
| 20×3 | 25×3 |
| 25×3 | 40×3 | 20×5 | 20×5 |
| 30 | 100 | G203/30/100 | G253/30/100 |
| G323/30/100 | G403/30/100 | G205/30/100 | G255/30/100 |
| 50 | G203/30/50 | G253/30/50 |
| G323/30/50 | G403/30/50 | G205/30/50 | G255/30/50 |
| 40 | 100 | G203/40/100 | G253/40/100 |
| G323/40/100 | G403/40/100 | G205/40/100 | G255/40/100 |
| 50 | G203/40/50 | G253/40/50 |
| G323/40/50 | G403/40/50 | G205/40/50 | G255/40/50 |
| 60 | 50 | | G253/60/50 |
| G253/60/50 | G403/60/50 | G205/60/50 | G255/60/50 |
| Bearing bar picth | cross bar pitch | Bearing bar size( depth*thickness) |
| 32×5 | 40×5 |
| 45×5 | 50×5 | 55×5 | 60×5 |
| 30 | 100 | G325/30/100 | G405/30/100 |
| G455/30/100 | G505/30/100 | G555/30/100 | G605/30/100 |
| 50 | G325/30/50 | G405/30/50 |
| G455/30/50 | G505/30/50 | G555/30/50 | G605/30/50 |
| 40 | 100 | G325/40/100 | G405/40/100 |
| G455/40/100 | G505/40/100 | G555/40/100 | G605/40/100 |
| 50 | G325/40/50 | G405/40/50 |
| G455/40/50 | G505/40/50 | G555/40/50 | G605/40/50 |
| 60 | 50 | G325/60/50 | G405/60/50 |
| G455/60/50 | G505/60/50 | G555/60/50 | G605/60/50 |
Raw Material
1.Galvanized steel grating:A36 is the common grade. After welding is completed, surface treatment will be carried out: mild steel grating will be hot-dip galvanized or painted to make it look beautiful or corrosion-resistant.
2.Stainless steel grating:Common grade is SS201, 304, 316, 316L. Stainless steel grating itself has a strong corrosion resistance, suitable for food processing and chemical fields.
3.I Bar Steel Grating:With its unique I-section design, it exhibits excellent bearing capacity and stability, and is suitable for heavy-loaded industrial platforms, bridges and other places, and has both ventilation and light transmission properties.
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Hot-DIP Galvanized Steel Grating for Trench Drain Channel with Heavy Load Bearing Open Grid Assembly Images
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