Steel Grating

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Steel Grating

In its standard form, grating is supplied with plain load bearing barsand 6mm square twisted cross rods.

Product Description

PLAIN

In its standard form, grating is supplied with plain load bearing barsand 6mm square twisted cross rods.

Steel Grating

SERRATED

Serrated grating is available with most standard load bearing bars.The serrations are formed by placing a series of notches along the upper edge of the load bar, thus enhancing the non-slip characteristics of the grating. When serrated grating is required it must be nominated. Use should be made of the serrated conversion factors when determining load bearing and spanning capacity

Steel Grating


Steel Grating


ItemDescription
Bearing bar20x5, 25x3, 25x4, 25x5, 30x3, 30x4, 30x5, 32x3, 32x5, 40x5, etc.
Bearing bar pitch25, 30, 30.16, 32.5, 34.3, 40, 50, 60, 62, 65mm, etc.
Cross bar5, 6, 8,9mm (twisted bar or round bar)
Cross bar pitch40, 50, 60, 65, 76, 100, 120, 130mm,etc
Surface treatmentBlack, Hot dip galvanized, Painted, Powder coated
TypePlain, Serrated (tooth-like), I bar (I section)
Material standardLow carbon steel(ASTM A36, A1011, A569, S275JR, SS304, SS400,UK: 43A)
Galvanizing standardCN: GB/T13912, US: ASTM (A123), UK: BS729
Steel grating standardsA. China: YB/T4001-1998
B. USA: ANSI/NAAMM (MBG 531-88)
C. UK: BS4592-1987
D. Australia: AS1657-1988
E:  Japan:  JJS


Steel Grating


Producing Process

Bearing bar-cutting-punching-cross rod -welding the bearing bar and cross rod together  -hot dipped galvanized


Quality Control

Steel Grating

Steel Grating


Drawing

Steel Grating