 	 			Specifications of steel gratings 		
 			Item 			Description 		
 			Bearing bar 			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. 		
 			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 			Untreated, Hot dip galvanized, Cold dip galvanized, Painted, Powder coated, or as customers’ requirement. 		
 			Flat bar type 			Plain, Serrated (tooth-like), I bar (I section) 		
 			Material standard 			Low carbon steel (CN: Q235, US: A36, UK: 43A) 		
 			Galvanization standard 			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 		
  

Features

1, The solid grid pressure welding structure makes it has the characteristics of high load bearing, high strength, light
 structure, easy to lift and so on.

2,Beautiful appearance, durable: hot dip zinc surface treatment makes it has quite good anti-corrosion ability, the surface luster is beautiful.

3, Ventilation, lighting, heat dissipation, explosion-proof, anti-skid performance is good.

4,No dirt, no rain and snow, no water, self-cleaning, easy 

Applications

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Product Tags:

galvanized steel grating walkway

steel walkway grating

steel grating walkway

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Specifications of steel gratings
Item	Description
Bearing bar	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.
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	Untreated, Hot dip galvanized, Cold dip galvanized, Painted, Powder coated, or as customers’ requirement.
Flat bar type	Plain, Serrated (tooth-like), I bar (I section)
Material standard	Low carbon steel (CN: Q235, US: A36, UK: 43A)
Galvanization standard	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