Description of steel grating:
steel grating, also called smooth surface grating, is a type of grating made of plain steel bars. The smooth surface contrast with serrated steel grating, which has a serrated surface. plain steel grating is the most widely used grating type, which is used in almost all of the applications.
Plain steel grating can be made of carbon steel bar, aluminum steel bars and stainless steel bars. Cross bars of plain steel grating can be crimped bars, which are known as riveted steel gratings, flat square bars which are the press-locked gratings.
The round bars is welded to the bearing bar is welded steel grating and the bars are placed into the pre-holes on the bearing bars to form the swage-locked grating.
Steel Grating Features:
Acid-alkali and corrosion resistance; anti-rust; insulation; weatherability; excellent anti-pressure capability.
It adopts macromolecule complex material and reinforcing steel bar moulded by high temperature and press at one time.
this kind of material has no recycle worth so it was burglarproof.At the same time it has locked construction design,it can make goods in the well avoid stolen.Avoid City Black Hole accident.
Lower price than stipulated standard cast iron ones.
5.Save mine resource
It is made by regenerated resin or regenerated plastic raw material, which save application of cast iron.
||20x5, 25x3, 25x4, 25x5, 30x3, 30x4, 30x5, 32x3, 32x5, 40x5, 50…75x8mm, etc.
||Bearing bar pitch
||25, 30, 30.16, 32.5, 34.3, 40, 50, 60, 62, 65mm, etc.
||5x5, 6x6, 8x8mm (twisted bar or round bar)
||Cross bar pitch
||40, 50, 60, 65, 76, 100, 101.6, 120, 130mm or as customers’ requirement.
||Black, Hot dip galvanized, Cold dip galvanized, Painted, Powder coated, or as customers’ requirement.
||Flat bar type
||Plain, Serrated (tooth-like), I bar (I section)
||Low carbon steel (ASTM A36, A1011, A569, S275JR, SS304, SS400,UK: 43A)Low carbon steel (ASTM A36, A1011, A569, S275JR, SS304, SS400,UK: 43A)
||CN: GB/T13912, US: ASTM (A123), UK: BS729
||Steel grating standards
||A. China: YB/T4001-1998
|B. USA: ANSI/NAAMM (MBG 531-88)
|C. UK: BS4592-1987
|D. Australia: AS1657-1988
|E: Japan: JJS