Description
Grating Panel
Steel grating is basically consist of Bearing bar and Cross bar by automatic press welding machine as following chart:
Steel gratings are usually made of carbon steel and stainless steel. they are generally used as industrial platform, maintenance platform, stair treads , rain-proof sunshade , fences and trench covers. widely used in the industry of Power plant, Oil Refineries,Petrochemistry, Chemical Plant, Water and Waste treatment plant, Ship-building, offshore projects and civil construction (like roads, park) ., etc.
Steel grating
Plain type, Serrated type, I Type and Serrated I type steel gratings are 4 basic kinds of gratings.
| Bearing bar
(width * thickness) |
19*2, 19*3, 20*2, 20*3, 20*5, 25*3, 25*4, 30*5, 40*5, 50*5…….. 100*10, 150*10mm |
| Bearing bar pitch (mm) | 12.5, 15, 20, 25, 30, 34.3, 35.3, 40,41.25, 50, 60…(30, 40 mm are recommended ) |
| Cross bar pitch (mm) | 38.1, 50, 76.2, 100, 101.6 .(50, 100 mm are recommended ) |
| Surface Treatment | Black/Untreated (U), Hot dip galvanizing (G), Painting (P) |
Material: Mild steel, Stainless steel
Surface treatment: Untreated, Painting or Hot DIP Galvanized.
| Country | Steel Grating standard | Galvanization Standard |
| China | YB/T4001-1998, YB/T4001-2007 | GB/T 13912 |
| USA | ANSI/NAAMM-MBG531 | ASTM A123-89 |
| UK | BS4592-2006 | BS 729 |
| Australia | AS1657-1992 | AS/NZS 4680 , AS1650 |
