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Hot dip galvanized gutter cover grating Park carbon steel strip grating gutter cover
Steel bar grating with high strength and firm structure is made up of carbon steel, aluminum steel, or stainless steel. According to the manufacturing methods, it can be divided into four types: welded, press-locked, swage-locked, and riveted gratings. According to the surface shapes, it can be divided into smooth and serrated gratings. With various styles and sizes for choice, steel gratings are widely used in everyday life, such as stair treads, walkways, platforms, floors, various covers, wheeled equipment, security screens, heavy-duty constructions, and so on.
Surface Treatment of hot dip galvanized steel grating
Process of hot dip galvanized steel grating
Installation:
1. At each intersection of load flat steel and cross bar, it should be fixed by welding, riveting or pressing lock.
2. Pressure resistance welding or arc welding are preferred in the welding of steel grille.
3. The pressure lock of the steel grille can be fixed by pressing the cross bar into the loaded flat steel by a press.
4. Steel grilles should be processed into various shapes according to the needs of users.
5. The spacing of the load flat steel and the spacing of the cross bar can be determined by the supplier and the demander according to the design requirements. As an industrial platform, it is suggested that the spacing of load flat steel should not be greater than 40 mm and the spacing of cross bar should not be greater than 165 mm.
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 | Cross bar pitch | 38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2' & 4' etc |
4 | Material Grate | 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 Type | Plain / Smooth, Serrated /teeth, I bar, serrated I bar |
7 | Standard | China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88), UK: BS4592-1987, Australia: AS1657-1985, Germany: DIN24537-1-2006, 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 . |
Q:Why choose us?
A: Direct factory,competitive factory price, quality assurance,local stock,fast delivery.
Q: How about the payment terms?
A:We usually use the T/T,L/C order. (100% guaranteed transaction by Alibaba ).
Q: How about the delivery time?
A:Usually within 15- 20 days, customized order may need longer time.
Q:Can you offer free sample?
A:Yes, It is our pleasure to provide sample,but usually the customer need to pay the freight,
We'll send back the courier charge if you make an order.