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32*3 Flat Bar Steel Grating Hot Dip Galvanized Steel Driveway Grating
Welded steel grating is one of the most commonly used steel grating, also called metal open bar grating. Welded steel grating is made of carbon steel or stainless steel. Welded steel grating has anti-slip surface, corrosion resistance, good drainage function, high strength and load capacity. So it is widely used as walkway, stair, fence, shelf, ceiling and floor in many places.
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: