1.what is steel grating ?( galvanized grating size ) -- Steel grating is made by bearing bar and cross bar according to the flat-steel weft arrangement, in high-pressure spacing on resistance welder welded by cutting, incision, opening, overlock process such as processing and into customer requirements finished products.
how to calculate the galvanized grating weight?
Galvanized grating weight consist of bearing bar weight and cross bar weight.
Bearing bar weight =bearing bar pcs quanity: (width of grating/bearing bar pitch)+1 *weight of each pcs:length of bearing bar*height*thickness*density of steel
cross bar weight=cross bar pcs quantity*weight of each pcs: diameter square *density of steel
2.steel grating specification- galvanized grating size
panel size available(black grating): 1000x5800mm or 1000x6000mm
| Bearing bar pitch | Cross bar pitch | load steel size ( 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 |
| Bearing bar pitch | Cross bar pitch | load steel size (Width ×Thickness) |
| 32×5 | 40×5 | 45×5 | 50×5 | 55×5 | 60×5 |
| 30 | 100 | G325/30/100 | G405/30/100 | G455/30/100 | G505/30/100 | G555/30/100 | G605/30/100 |
| 50 | G325/30/50 | G405/30/50 | G455/30/50 | G505/30/50 | G555/30/50 | G605/30/50 |
| 40 | 100 | G325/40/100 | G405/40/100 | G455/40/100 | G505/40/100 | G555/40/100 | G605/40/100 |
| 50 | G325/40/50 | G405/40/50 | G455/40/50 | G505/40/50 | G555/40/50 | G605/40/50 |
| 60 | 50 | G325/60/50 | G405/60/50 | G455/60/50 | G505/60/50 | G555/60/50 | G605/60/50 |
3 galvanized grating size introduction--
Type bearing bar
Surface treatment:
| Bearing bar type | Flat bar | I bar | Serrated bar | |
| Cross bar type | Twisted bar | Round bar | flat bar | |
| Production process | welded | Pressure locked | | |
| Surface treatment | Self-colour | Galvanized | painted | |
| application | Platform | walkway&floor | Trench cover | Steel stair treads |
| | Suspended ceiling | Barrier fence | | |
4. galvanized grating size international standard
| Steel Grating Standard |
| | Steel Grating Standard | Steel Standard | Galvanizing Standard |
| China Standard | YB/T 4001.1-2007 | GB700-88 | GB/T13912-2002 |
| USA Standard | ANSI/NAAMM (MBG531) | ASTM (A36) | ASTM (A123) |
| U.K. Standard | BS4592 | BS4360 (43A) | BS729 |
| Australia Standard | AS1657 | AS3679 | AS1650 |
| Deutsche Standard | DIN24537 | DIN17100-80 | DIN50976 |
5. steel grating standard size manufacture process
6. galvanized steel grating weight application
( civil buildings such as gymnasium, exhibition centre, supermarket, bus station, quay and airport, etc.)
port platform floor grating
barrier fence grating (agricultral barrier,balcony,yard wall fence)
water channel grating
117th canton fair show
customized shaped self-color grating
6.our company profile
Hebei Jiuwang Metal Wire Mesh Co.,Ltd.(original Anping County Jintai Metal Mesh Co.,Ltd.).Established in 1992,our company is a manufacturer of large steel structure and steel gratings,integrating development,production and distribution.The company register capital is 10,080,000 Yuan,and take an area of 34,680 square meters.In 2003,we have got the ISO9001:2000 certification by BQR.
7.our company activity( new year open in snow, attend economic meeting,dinning with customer,group trour,canton fair show)
7.CHOOSE US BECAUSE WE HAVE
1.Independent automatic steel grating product line with huge workshop and devices to ensure delivery time.
2. Over 20 years' experience in hot-dipped galvanized steel grating manufacture
3. Quality guarantee under the control of ISO9001 2000 quality system
4.Professional technology and design teams, chart as customers' requirements.