1>Material :Mild steel & Low carbon steel, etc.
2>Surface process: hot-dipped galvanized ,electro-galvanized and spraying and soaking.
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.
Serrated (sawteeth) galvanized steel grid
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
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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steel grid features
(1)Attractive appearance:Simple outline.silver colour,and modern.
(2)Optimum water draining:Water leakage area reaches 83.3%,which is more than two times larger than that of cast iron.
(3)Hot-dip galvanizing:Good antirust performance,maintenance free and replacement free.
(4)Design of preventing theft:The cover is connected with the frame by gemel,which ensures protection against theft,safety,and convenient opening.
(5)Saving investment:With large span,the cost is lower than that of cast iron when under heavy load.And the replacement expenses in case of theft and crushing will be saved.
(6)High strength:With strength:With strength and toughness far higher than those of cast iron,it can be used in the environment with large span and heavy load,such as the wharf and the airport.
(7)Many specifications available: The requirement of different environments,loads,spans,sizes and shapes can be satisfied.
Steel bar grating applications:
Steel Bar Grating is widely used in Flooring, Platforms, Walkways, Trench Covers, Assembly Lines, Stairs, Gully Covers, Jetties, fender, etc.
Packing details:
1. Wrapped with plastic film,then packed with steel belt, then in pallet
2. Customized packing can be made.
Delivery date:
About 15-20 day after order confirmation.
