1.Introduction of hot-dipped galvanized steel grating
1>material:carbon steel or stainless steel
2>cross bar pitches:maybe 24-200mm,of which 50mm,76mm and 100mm are recommended.
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.
2.Specification of hot-dipped galvanized steel grating
1>. Steel grating Plane Flat Bar Specification:
Thickness:3mm,5mm are the common
(1)The shape of bearing bar: Plain type (may be omitted in the
symbol of steel grating), Serrated type and I-Shape type
(2)Bearing bar pitches can be 12.5, 15, 20, 30, 30.16, 32.5, 34.3,
40, 60mm, of which 30mm & 40mmare recommended.
(3)Cross bar pitches can be 38, 50, 60,100mm, of which 50mm &
100mm are recommended.
3. hot-dipped galvanized grating 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
(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.
4. hot-dipped galvanized steel grating application
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
5.Tolerance of hot-dipped galvanized steel grating
The allowed deviation of length is +0/-5mm, while the allowed
deviation of width is +/-5 mm.
The non-perpendicularity of bearing bar is allowed no more than 10%
of width of bearing bar.
Cross bar surface should not surpass bearing bar surface 1mm, beginning &
end of cross bar should not surpass the end surfaces of two sides
of grating 2mm.
6.Standards of hot-dipped galvanized steel grating
|Steel grating standard||Steel standard||Galvanizing standard|
|China standard||YB/T 4001.1-2007||GB700-88||GB/T13912-2002|
8.The packing of hot-dipped galvanized steel grating
normally packed in pilling up ways with two pieces of square wood
on both upperand bottom sides.there are four or six pieces of M10
long bolt penetrading the gratings and screwing together.it is
suitable for loading and unloading by fork-lift and crane.
1.All our products size and design are customizing available.
2.Your inquiry related to our products and price will be replied
with 24 hours.
3.OEM&ODM Projects are highly welcomed. We have strong R&D
team here to help.
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