Specifications

1. Bearing bar pitch:30,40,60mm
2. Cross bar pitch:50,100mm
3.Untreated, Painting ,Powder coated or Hot dip Galvanizing

1)Material: There are mill steel black, hot dip Galvanizing  and stainless steel grating.

2)Usage: flooring walkway, platform ,steel structures, stair tread, well cover, trench cover, sump cover,compound gratings, storage shelves, ladder, fences and handrail so on for construction project, oil project, seaport, power plant, water plant, defense project, chemical factory and so on.

3)Types: Plain Style Steel Grating, Serrated Style Steel Grating and I Bar Type Steel Grating.

4)Steel grating standards:
A) China: YB/T4001-1998
B) USA: ANSI/NAAMM (MBG531-88)
C) UK: BS4592-1987
D) Australia: AS1657-1988
E) Japan: JJS.

Pitch of Bearing bar	Cross-bar Pitch	Specification of bearing bar load(width×thickness)
		20×3	25×3	32×3	40×3	20×5	25×5
30	100	G203/30/100	G253/30/100	G323/30/100	G403/30/100	G205/30/100	G255/30/100
	50	G203/30/50	G253/30/50	G323/30/50	G403/30/50	G205/30/50	G255/30/50
40	100	G203/40/100	G253/40/100	G323/40/100	G403/40/100	G205/40/100	G255/40/100
	50	G203/40/50	G253/40/50	G323/40/50	G403/40/50	G205/40/50	G255/40/50
60	50		G253/60/50	G253/60/50	G403/60/50	G205/60/50	G255/60/50