drainage steel grating cover drainage ditch

Specifications drainage steel grating cover drainage ditch;

Serrated Steel Grating

Stair Tread

Exported to Brazil,US,UAE,UK

drainage ste

    1) Bearing Bar (Load Bar) Specifications (mm): The specification of plain type and serrated type bearing bar is 20 x 3 to 100 x 10;the specification of I-section type is 25 x 5 x 3, 32 x 5 x 3, 38 x 5 x 3, 40 x 5 x 3, 50 x 5 x 3, 50 x 7 x 4, 55 x 7 x 4, 60 x 7 x 4, 65 x 7 x 4, 70 x 7 x 4, 75 x 7 x 4, etc.   2) Bearing Bar Pitch (center to center): 12.5, 15,25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm etc, also be according to client's requirement and 30, 40, 60mm are recommended,   America standard is available <1'' x 3/16'', 1 1/4'' x 3/16'', 1-1/2'' x 3/16'', 1'' x 1/4'', 1-1/4'' x 1/4'', 1 1/2'' x 1/4''(19-w-4),(19-w-2) and so on.>   3) Cross Bar Pitch (center to center): 38, 50, 76, 100, 101.6mm etc, also be according to client's requirement and 50, 100mm are recommended, America standard is available.   4) Material: Mild Steel (Low Carbon Steel) or Stainless Steel    5) Surface Treatment: Untreated, Painting or Hot dip Galvanizing    6) Steel grating standards: A) China: YB/T4001-1998 B) USA: ANSI/NAAMM (MBG531-88) C) UK: BS4592-1987 D) Australia: AS1657-1985

Type	Welded steel grating, pressure-locked, socket-welding
Steel flat size	20×3,25×3,25×5,30×3,30×4,30×5,32×3,32×5……45×5mm
Beraing bar pitch	12.5,15,20,25,30,35,40,50mm
Cross bar pitch	38,50,80,100mm
material	Low carbon steel, stainless steel, aluminium
Surface treatment	Untreated, hot galvanized, painted
Standards	China: YB/T 4001.1-2007 USA: ANSI/NAAMM(MBG531-88) UK: BS4592-1987 Australia: AS 1657-1985

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