Custom Size Driveway Steel Grates For Heavy Duty Corrosion
Introduction of diffraction grating:
Galvanized steel bar grating is made by welding with flat steel and
bars with certain distances. It goes through cutting, opening,
edging and other processes. The products enjoy the feature of high
strength, light structure, high bearing, convenience for loading
and other properties. The hot dipped zinc coating gives the product
Advantages of grating:
Steel grating offers the following advantages compared with steel
Steel grating has light weight, good strength, large carrying
capacity and can save materials and cost. It offers good
ventilation of light and wind, a modern sense, aesthetic appearance
and anti-skid safety. It is also easy to clean, easy to
installation and durable for uses.
What's the usage of gratings?
Metallurgy, petroleum, shipbuilding, chemical industry, port,
platform, joist, limb hand, pier and groove panel, pedal, sun
shade, ventilation pervious to light, et
Common sizes as follow:
G303/30/100 G255/30/100 G305/30/100 G505/30/100 G203/30/50
G255/30/50 G303/30/30 G808/30/100 G605/30/100 G355/30/100
It is steel bar according to a certain distance and cross arranged
and welded into the middle of a square latice with an iron and
steel products . It is mainly used on the industrial platform ,
flooring , drainge cover , well cover , oil platform , stair tread
1. Anti-skid toothed steel grille is welded by sawtooth flat steel
and twist steel on one side. It has all the characteristics and
uses of general steel grille. Besides, it also has strong anti-skid
ability. It is especially suitable for stairs, wet and greasy
occasions, places where ice and snow cover for a long time in the
north and offshore oil production channels.
2. The sawtooth steel grille is treated by hot-dip galvanizing,
which has a strong ability of anti-corrosion.
3. Anti-slip flat steel should be used when the inclination of
steel grille device is greater than 10 degrees.
4. Material composition of anti-skid steel grille: general flat
steel: raw material is Q235. Common types are 203253 255 303 303
323 325 403 404 405 503 505 505 605 705 and other standards. Tooth
flat steel: The same type as general flat steel, the difference is
that the side of flat steel has uneven serrated grooves, mainly
used for anti-skid.
Steel Grating Details
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
|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.
|Twisted Cross Bar Pitch||38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc|
|Material Grade||ASTM A36, A1011, A569, Q235, S275JR, SS304, Mild steel & Low
carbon steel, etc|
|Surface Treatment||Black, self colour, hot dip galvanized, painted, spray coating|
|Grating Style||Plain / Smooth, Serrated /teeth, I bar, serrated I bar|
China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88),
UK: BS4592-1987, Australia: AS1657-1985, Japan:JIS