Steel Grating Mesh is made by welding with flat steel and bars with certain distances. It goes through cutting, opening, edging and other processes. The products enjoy the feature of high strength, light structure, high bearing, convenience for loading and other properties. The hot dipped zinc coating gives the product excellent anti-corrosion.
Material: high quality low carbon steel
Types: serrated and plain
Finishes: electro galv, hot dipped galv, according to the difference surface treatment.
Specification
| Matrial | Low carbonsteel / Stainless steel |
| Grade | CN: Q235, Q345 ; UK: 43A |
| Bearing bar size | 20X5, 25X3, 25X4, 25X5, 30X3, 30X4, 30X5, 32X3, 32X5, 40X5, 50X4... 75X8, 100X8mm, etc |
| Bearing bar pitch | 20,25,30,32.5,34.3,40,50,60,62,65mm |
| Bearing bar type | plain, Serrated (tooth-like), I bar (I section), Serrated-I |
| Cross bar size | 5X5, 6X6, 8X8mm (twisted bar)/5, 6, 8mm ( round bar) |
| Cross bar pitch | 40, 50, 60, 65, 76, 100, 101.6, 120, 130mm, etc. |
| panel size: | 1000x1000mm, 1000x2000mm, 1000x3000mm, 1000x6000mm |
| Surface treatment | Untreated, hot DIP galvanized, cold DIP galvanized, painted, powder coated, pickling, electrolytic polishing, or as customers’ requirement. |
Most Popolar
| NO. | Bearing size(mm) | Cross bar pitch(mm) | Weight(kg/square meter) |
| G253/30/50 | 25x3 | 50 | 25.7 |
| G253/30/100 | 100 | 22.8 |
| G255/30/50 | 25x5 | 50 | 39 |
| G255/30/100 | 100 | 36.2 |
| G323/30/50 | 32x3 | 50 | 31.3 |
| G323/30/100 | 100 | 28.4 |
| G325/30/50 | 32x5 | 50 | 48.4 |
| G325/30/100 | 100 | 45.5 |
Surface treatment: untreated(black), hot-dipped galvanized ,powder coated, electroplate,
painting or as per customers’ requirement.
Specification of galvanized steel grating:
| Common specification of Steel grating |
| Material Standard | ASTM A36, A1011, A569, Q235, S275JR,Stainless steel 304, Mild steel & Low carbon steel, etc |
| Bearing Bar (width*thickness) | 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10…..100 x10mm etc; I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc US standard: 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'', 1''x1/4'',1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1/4''x1/8'', 1 1/2''x1/8'' etc |
| Bearing Bar Pitch | 12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3,32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc. US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc. |
| Twisted Cross Bar Pitch | 38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc |
| Surface treatment | untreated(black), hot-dipped galvanized ,powder coated, electroplate, painting or as per customers’ requirement. |
| Grating Style | Plain / Smooth, Serrated /teeth, I bar, serrated I bar |
Application
galvanized steel grating are widely used by various plants such as electric power,petroleum,chemical industry,metallurgy industry,machinery industry,shipbuilding, harbor,oceanographic engineering,building,paper mills,cement plant,medicine,spinning and weaving,foodstuff factory,transportation,municipal administration,parking lot,etc.
Standards of serrated galvanized steel grating.
| | Steel grating standard | Steel standard | Galvanizing standard |
| China standard | YB/T 4001.1-2007 | GB700-88 | GB/T13912-2002 |
| USA standard | ANSI/NAAMM(MBG531) | ASTM(A36) | ASTM(A123) |
| U.K. standard | BS4592 | BS4360(43A) | BS729 |
| Australia standard | AS1657 | AS3679 | AS1650 |
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Tolerance of hot dip galvanized steel grating
The allowed deviation of length is +0/-5mm, while the allowed deviation of width is +/-5 mm.
The non-perpendicularity of bearing bar is allowed no more than 10% of width of bearing bar.
Cross bar surface should not surpass bearing bar surface 1mm, beginning & end of cross bar should not surpass the end surfaces of two sides of grating 2mm.
Packaging and shipping of steel grating
Steel grating ready to delivery. Stock place of our factory.
Inspection process of the steel grating.
To make sure the goods is seriously as customer's request, we have professional inspector who check the steel grating quality in each step from material collecting to goods loading.
Product Tags:
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Flat Stair Gully Galvanized Serrated Grating 30 X 4mm With 6X6 Or 8X8mm Bar Images
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