main categories
Classification according to the shape of flat steel: flat steel grid plate, tooth flat steel grid plate, I flat steel grid plate, etc.
According to the form of the bar classification: twisted square steel bar steel grid plate, round steel bar steel grid plate, flat steel bar steel grid plate.
Classified by surface treatment: hot-dip galvanized steel grid, cold galvanized steel grid, spray painted steel grid, etc. Hot-dip galvanized steel grid plate has strong impact resistance and corrosion resistance. The cost of cold galvanized steel grid is relatively low, but the rust prevention ability is medium; The color of the painted steel grid is diverse, but the anti-rust ability is weak and afraid of wear.
Classification by use: platform steel grid plate, ditch cover plate steel grid plate, stair step plate steel grid plate, etc. These steel grids are designed according to specific application scenarios to meet different load bearing, anti-slip, drainage and other requirements.
According to the welding method and other categories: pressure welding type, insert type, lock type and weld type. In addition, there are stainless steel grid plate and carbon steel grid plate, according to the different material, its corrosion resistance, strength and other properties are also different.
| Drainage steel grating cover Drainage ditch material | Steel,Low carbon steel,stainless steel&Q235,A36,SS304,SS316L, S235JR |
| Surface treatment | Black, hot dipped galvanized, paint |
| Bearing bar width*thickness | 25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm |
| Bearing bar pitch | 12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 34.3, 35, 40, 41, 60mm. US standard: 1"x3/16", 1 1/4"x3/16", 1 1/2"x3/16", 1"x 1/4", 1 1/4"x 1/4", 1 1/2"x 1/4" etc. |
| Bearing bar shape | Plain Style Steel Grating, Serrated Style Steel Grating and I Bar Type Steel Grating. |
| Drainage steel grating cover drainage ditch standard | China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88), UK: BS4592-1987, Australia: AS1657-1985, Japan: JJS. |
| Cross bar shape | round,twisted,bar shape |
| Cross bar pitch | 38,50,76,100,101.6mm |
| Galvanizing standard | US: ASTM (A123), CN: GB/T13912, UK: BS729 |
| Market distribution | America45%,Europe26%,Middle east38%,Other place27% |
Product material diversity
Raw materials of steel grid plate are: flat steel, twist steel, pattern plate.
The steel grid plate is an open steel member which is composed of bearing flat steel and cross bar according to certain spacing and fixed by welding or pressure lock. The transverse bar is generally made of twisted square steel, round steel or flat steel, and the material is divided into carbon steel and stainless steel.
Production method of steel grid plate:
The pressure welded steel grid plate is made of load flat steel and cross bar arranged according to certain spacing longitude and latitude, using 200 tons of hydraulic resistance welding automatic equipment to weld into the original plate, through cutting, opening, packaging and other processes.
Load flat steel spacing: the center distance between two adjacent load flat steel, commonly used 30MM, 40MM two.
Bar spacing: The center spacing of two adjacent bars is usually 50MM and 100MM.
Product Tags:
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Low Carbon Steel Industrial Plain Bar Grating For Residential And Commercial Images
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