SS Grating Twisted Bar Steel Floor Grating 6 x 6mm Plain Bar 32mm x 5mm
Twisted Bar Platform Steel Grating 6 x 6mm Plain Bar 32mm x 5mm
Platform steel grating consist of a series of bearing bars cross jointed by welding at various intervals with cross bars (twisted square bars, square bars, round bars, flat bars etc.), to form a kind of steel products with square lattices among them.
1. Type :Welded steel grating, pressure locked, socket welding
2. Material:Low carbon steel, stainless steel, aluminum
3. Flat bar specification:
(1)Plain flat bar:
Thickness: 3mm, 5mm.
Height: 25mm, 30mm, 32mm, 40mm, 45mm, 50mm, 60mm, etc.
(2)I-shaped flat bar:
Thickness of both ends: 5mm.
Thickness of the center: 3mm.
Height: 25mm, 32mm, 38mm, 44mm, 50mm, etc.
4. Flat bar spacing: 30mm, 40mm, 60mm,etc.
6. Cross bar sizes: 5x5mm, 6x6mm, 8x8mm, etc.
7. Cross bar spacing: 50mm, 100mm.
8. Length of steel grating plate: common length ≥800mm, some platform cover plate length is 3000-10000mm.
9. Two end types:
Closed end Open end
10. Surface process of gratings: there are three types:hot-dipped galvanized ,electro-galvanized and spraying brushing and soaking.anti-acid and alkali corrosion capacity the range PH6 to PH12.5,a stable protective film will be formed on the zinc surface.it has good anti-corrosive property.
11. Packing conditions of steel grating:normally packed in pilling up ways with two pieces of square wood on both upperand bottom sides.there are four or six pieces of M10 long bolt penetrading the gratings and screwing together.it is suitable for loading and unloading by fork-lift and crane.
12. Steel grating standard:
| Country | Steel grating standard | Steel material standard | Hot galvanizing standard |
| China | YB/T4001-1998 | GB 700-88 | GB/T13912-2002 |
| USA | ANSI/NAAMM(MBG531-88) | ASTM (A36) | ASTM(A123) |
| England | BS4592-1987 | BS4360 ( 43A) | BS729 |
| Australia | AS1657-1992 | AS3679 | AS1650 |
| No. | Item | Description |
| 1 | Bearing Bar |
25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 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 1/2'x1/4', 1'x1/8', 1 1/4'x1/8', 1 1/2'x1/8' etc. |
| 2 | 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. |
| 3 | Twisted Cross Bar Pitch | 38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2' & 4' etc |
| 4 | Material Grade |
ASTM A36, A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc |
| 5 | Surface Treatment | Black, self colour, hot dip galvanized, painted, spray coating |
| 6 | Grating Style | Plain / Smooth, Serrated /teeth, I bar, serrated I bar |
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7
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Standard |
China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88), UK: BS4592-1987, Australia: AS1657-1985, Japan:JIS |
| 8 | Application |
-Rotation ways, channels, and platforms for pump rooms and engine rooms in various ships; -Flooring in various bridges such as railway bridge sidewalks, over-bridges across the street; -Platforms for oil extraction sites, car washing sites and air towers; -Fencings for car-parks, buildings and roads; drainage trench covers and drainage pit covers for high strength . |
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