hot-dip galvanized steel grating For Drainage Covers
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China [CN] 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.
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