hot-dip galvanized steel grating For Drainage Covers
The steel grating adopts the world-class equipment from the Italian company ORSOGRIL. The flat steel and the twisted square steel are distributed at certain intervals. The computer-controlled high-voltage resistance welding presses the twisted square steel into the flat steel to obtain a firm welding joint. The board surface is flat and contains steel grating with extremely high strength.
Parameter
Data
Bear Bar Type
Flat Bar, I-Bar, Serrated Bar, etc
Bearing Bar Size
20x5mm, 30x3mm, 30x5mm, 40x3mm, 40x5mm, 50x5mm, etc
Bearing Bar Spacing
30mm, 33mm, 40mm, 50mm or other size
Cross Bar Type
Twisted steel bar, Flat bar
Cross Bar Size
6mm, 8mm or other
Cross Bar Spacing
50mm or 100mm
Weld Way
Welded , Pressure-locked , Swage Locked
Material Grade
Mild Steel(Q235B), Stainless Steel 304 or 316, etc
Surface treatment
Hot dipped Galvanized, Spray paint or other
Standards
Steel Grating Standard
Steel Material Standard
HDG Coating Standard
China
YB/T4001-2007
GB700-88
GB/T13912-92
USA
ANSI/NAAMM(MBG531-88)
ASTM-A36
ASTM-A123
UK
BS4592-1987
BS4360(43A)
BS729
Australia
ASl 657-1992
AS3679
ASl650
The bearing flat steel standard of steel grating should be selected according to the practical bearing requirements. Commonly used standards are: 25x3mm, 25x4mm, 25x5mm, 30x3mm, 30x4mm, 30x5mm, 32x3mm, 32 x5mm, 35x3mm, 35x5mm, 40x3mm, 40x4mm, 40x5mm, 50x3mm 50x5mm, 60x5mm, 65x5mm, etc. It can also be customized according to customer requirements.
PRODUCT FEATURES
Steel 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 features of high strength, light structure, high bearing, convenience for loading and other properties.The hot dipped zinc coating gives the product excellent anti-corrosion resistance.
