Steel Grating Walkway Rainwater Grating
Steel graing can be made by Manual welding,Machine welding,which can arrange the bearing bar and cross bar in longitude and latitude order to certain distance.Cross bar is pressed into the beaing bar by high tension resistance welding which is controlled by mould/computer.
Flat steel is generally cold rolled Q235 flat steel, can also be hot rolled I flat steel, tooth flat steel, inclined flat steel, stainless steel flat steel and other specifications.The bar is generally twisted square steel, square steel, round steel, flat steel, etc.The surface treatment has: hot galvanizing, cold galvanizing, spray model, spray paint, dip anti-rust oil can prevent oxidation rust, (general stainless steel need not above treatment, most stainless steel surface polishing treatment).
Advantages: saving materials, reducing investment, simple construction, durable, modern fashion, anti-fouling, reducing wind resistance, simple design, strong corrosion resistance.
Application scenarios：
1. Water treatment: repair walkway, trench cover board, large container, cleaning device, blocking grate, running water tank, biochemical water treatment pool pendant, ventilation window, stairs, cooling tower operation table paving surface.
2. Chemical plant: stairway board, operating platform, guardrail, double floor, trench cover board, filter grate oil
3. Industry: offshore oil platforms
4. Textile mill: replace metal grille, wooden platform and cover cement ground, next to the dye tank, floor, near the valve, etc..
5. Power plant: chemical water workshop trench cover plate, waste pool, etc..
6. Marine food processing plant: slippery surface and other harsh environment, ships.
7. Transport: platforms, ship decks, walkways, stairs.
8. Beverage industry: Staircase floor board, replacement of expensive stainless steel, loaded floor.
Steel grating specifications：
| Item | Description |
| 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. |
| Bearing Bar Pitch | 12.5, 15, 20, 25, 30, 32, 35, 38, 40, 60, 80mm etc. US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc. Noted:19-W-4 is most popular(19/16 inch x 4 inch opening=30x100mm opening) |
| Twisted Cross Bar Pitch | 50, 60, 76, 100, 120mm etc. US standard: 2' & 4' etc. |
| Surface Treatment | Black, self colour, hot dip galvanized, painted, spray coating |
| Grating Style | Plain / Smooth, Serrated /teeth, I bar, serrated I bar |
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