Heavy duty 30x3 hot dipped galvanized outdoor steel grating stair
Steel Grating is made by Carbon or mild steel of certain sizes
through the processing of slit cutting, serration-making, press
welding, inspecting before galvanization, galvanizing, checking
before packing, etc.
Steel grating is designed scientifically and equisitely, is very
strong and safe to support floors and walkways. It can be used for
ceiling, interior and exterior decoration, platform aisle,
ventilation windows, (Wells), advertising plaque and other
1) Bearing bar specification:20*3 to 100*6
2) Bearing bar pitch:12.5,22.214.171.124mm etc,or according customer's
3) Cross bar pitch:38,50,76,100mm,or according to customer's
4) Material:mild steel or stainless steel
5) Surface treatment:painting or hot dipped galvanized
|Load Bearing Flat Bar size||Thickness≥3mm, depth ≥19mm|
|19X3,19X5,20X3, 20X5, 25X3, 25X4, 25X4.5, 25X4.7, 25X5…..40X6,
|Pitch of Load bearding flat bars(mm)||12.5,15, 20, 30, 30.6, 32.5, 34, 34.8, 35.3, 40, 60, 80……|
|Pitch of cross bars(mm)||38.1, 50, 50.8, 70, 75, 80, 100, 101.6, 102……|
Steel stair tread is a kind of open steel plate with its bearing
bar & cross bar jointing at intersections either by welding or
by locking. It can be manufactured into round, square, rectangle or
other shapes. Widely used in stairways of steel structures and
steel ladders, this stair tread is significantly easier to install
and maintain. We can provide various standard products and are
happy to fulfill customized orders.
Steel Grating Stair Tread Application
Steel Grating Stair Tread are widely used by various plants such as
electric power, petroleum, chemical industry, metallurgy industry,
machinery, industry, shipbuilding, harbor, oceanographic,
engineering, building,paper, mills, cement, plant, medicine,
spinning and weaving, foodstuff factory, transportation, municipal
administration, parking lot, etc.
Installation of steel grating:
1. Welding & using saddle clips are two ways for installation
of grating. The welding is suitable for those places where there is
no need to move or dismental,for instance,the flooring around the
machines. However,using saddle clips are featuring in easy
installation & saving zinc layer.
2. Regarding welding installation, angle wolding would used at the
first bearing bar of every corner,which the welding length is no
less than 20mm,&the height is no less than 3mm.
3. Saddle clip composed of a top plate,a hold down & a M8 bolt,
is suitable for all kinds of steel gratings installation.
4. Regarding saddle clip installation, at laest four sets of saddle
clips would be used in one pc grating.It would be better using more
in the staddle for those gratings with a bigger span.