Steel Gratings Specifications
Materials: Q235 / Stainless Steel / Aluminium
Material standard: Low carbon steel (ASTM A36, A1011, A569, S275JR, SS304, SS400,UK: 43A)
Type: Welded steel grating, pressure-locked, socket-welding
Bearing Bar: 20x5, 25x3, 25x4, 25x5, 30x3, 30x4, 30x5, 32x3, 32x5, 40x5, 50…75x8mm, etc.
Bearing Bar's Type: F- Plain style; S-Serrated style (tooth-like); I- I-section style
Beraing Bar Pitch: 25, 30, 30.16, 32.5, 34.3, 40, 50, 60, 62, 65mm, etc.
Cross Bar: 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.
Surface Treatment: Black, Hot dip galvanized, Cold dip galvanized, Painted, Powder coated, or as customers’ requirement.
Galvanizing standard:
CN: GB/T13912
US: ASTM (A123)
UK: BS729
Standards:
China: YB/T 4001.1-2007
USA: ANSI/NAAMM(MBG531-88)
UK: BS4592-1987
Australia: AS 1657-1988
Japan: JJS
Steel Grating