Rooftop Safety Walkway Steel Grating Hot Dip Galvanized Serrated
Building Material Hot Dipped Galvanized Steel Grating For Trench Cover Or Foot Plate
Gratings are steel bars that are forged to create a grid. Steel gratings have for long been the most favored choice of all gratings types owing to its durability, low maintenance costs, easy to install and customize and long life. We provide gratings manufactured from mild steel or stainless steel with various combinations of load bar depth and breadth.
(1) Standard gratings are typically available in 6m x 1m or 20' x 3' panels
(2) They can be produced with almost any combination of pitch size. Most commonly this is 41mm x 100mm or 30mm x 100mm.
(3) Load bearing bars of width 20mm to 100mm and thickness 2mm to 10mm can be used. Bars can be plain or with a serrated edge finish of various depths.
(4) Bearing bars optional - Flat bar / I bar / Serraed Bar
(5) Panels are available self-color or with a galvanized coating to international standards.
Welded Steel Bar Grating Specification:
| No. | Item | Detailed Description |
| 1 | Bearing Bar | 25x3, 25x4.5, 25x5, 30x3, 30x4, 30x5, 30x5.5, 32x5, 40x5, 50x5,60x5,70x6, 75x10---100x10mm 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 1/4' ' x1/8' ' , 1 1/2' ' x1/8' ' etc | ||
| 2 | Bearing Pitch | 12.5, 15, 20, 25, 30, 30.3, 32.5, 35, 38.1, 40, 41.25, 60, 80mm etc |
| US standard: 19-w-4, 15-w-4, 16-w-4, 11-w-4, 19-w-2, 15-w-2 etc | ||
| 3 | Cross Bar Pitch | 38, 40 50, 60, 76, 80, 100, 101.6, 120mm, 2' ' & 4' ' etc |
| 4 | Steel Grade | ASTM A36, A1011, A569, Q235, S235JR, SS304, Mild steel & Low carbon steel, etc |
| 5 | Surface Treatment | Black, self coloures, hot dip galvanized, painted, spray coating |
| 6 | Grating Style | Plain / Smooth, Serrated /teeth, I bar, serrated I bar |
| 7 | Grating Standard | China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88), |
| UK: BS4592-1987, Australia: AS1657-1985, Japan: JIS |
Metal Grate Picture:
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