Flat Steel Grating

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Flat Steel Grating

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Steel Bar Gratings are manufactured with the world's first-class computer-controlled pressure resistance welding machine by electro-forging the twisted square-steel into flat steel.Steel Bar Gratings are classified into three styles,namely plain style,serrated and I style as per the upper edges of bearing bars .Flat steel grating is one of the most popular steel grating.More than 200 varieties are available based on specifications and spacing of bearing bars ,and that of cross rod. Different protective treatment can be made on the surface as environment varies.

1Bearing Bar25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10,100x10mm etc;US standard: 1'x3/16', 1 1/4'x3/16', 1 1/2'x3/16',1'x1/4', 1 1/4'x1/4', 1 1/2'x1/4', 1'x1/8', 1 1/4'x1/8', 1 1/2'x1/8' etc.
2Bearing Bar Pitch12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etcUS standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc.
3Twisted Cross Bar Pitch38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2' & 4' etc
4Material GradeASTM A36, A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc
5Surface TreatmentBlack, self colour, hot dip galvanized, painted, spray coating
6Grating StylePlain / Smooth surface
7StandardChina: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88),UK: BS4592-1987,  Australia: AS1657-1985, Japan:JIS
8Application-Rotation ways, channels, and platforms for pump rooms and engine rooms in various ships;-Flooring in various bridges such as railway bridge sidewalks, over-bridges across the street;-Platforms for oil extraction sites, car washing sites and air towers;-Fencings for car-parks, buildings and roads; drainage trench covers and drainage pit covers for high strength .

Flat Steel Grating Flat Steel Grating Flat Steel Grating