1>material:
carbon steel or stainless steel
2>cross bar pitches
24-200mm,of which 50mm,76mm and 100mm are recommended.
common specifications of steel grating
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longitudinal strip (Flat bar) distance
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conventional 30,40,60 (mm); and non-standard spacing: 25,33,35/50 (mm) and so on
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horizontal stripe (Twist steel)
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normal spacing 50,100 (mm); and non - standard spacing: 38,76 (mm)
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height
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20~500 (mm)
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thickness
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3-15 (mm)
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3>Steel grating
is made by the world first- class equipment,which can arrange the bearing bar and cross bar in longitude and latitude order to certain distance.cross bar is pressed into the bearing bar by high tension resistance weldingring which is controlled by computer.so we can produce high quality gratings with firm welding,smooth surface
and high strength.
4>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.
Steel bar grating Standard:
China YB/T4001-1998
America ANSI/NAAMM (MBG531-88)
Britain BS4592-1987
Australia AS1657-1992
Steel Standard: China GB700-88 / ASTM (A36) / BS4306 (43A)
Hot Dip Galvanizing Standard: China GB/T13912-92 / ASTM (A123) / BS729
5>Finish treatment:
Hot dipped galvanized, cold dipped galvanized, spray painting,
dip anti-rust oil, can prevent oxidation.
Steel bar grating features:
1. High strength and light structure
2. Powerful anti-corrosion, durable and long working life
3. Beautiful appearance, bright surface
4. No dirt-rain-snow deposit, automatic cleaning, easy maintenance
5. Good ventilation, day-lighting, heat-dispersing, resistant to sliding and explosion.
6. Easy installation and disassembly
Steel grating used in flooring, catwalk, mezzanines/decking, stair tread, fencing, ramp, dock, trench cover, drainage pit cover, maintenance platform, pedestrian/crowded pedestrian, factory, workshop, motor rooms, trolley channel, heavy loading area, boiler equipment and heavy equipment area, office buildings, apartments, train stations, department stores, hospitals,amusement parks,etc
The package of galvanized steel grid
galvanized steel grid is normally packed in the way with two pieces of square wood on both upper and bottom sides.there are four or six pieces M10 long bolt penetrating the grids and screwing them together.it is suitable for loading and unloading by forklift.But we also packing our products on costumer’s requirement.
