Metal Bar Grating is made by the world first-class equipment,which can arrange the bearing bar and cross bar in longitude and latitude order to certain distance.cross bar is pressed into the bearing bar by high tension resistance weldingring which is controlled by computer.so we can produce high quality gratings with firm welding,smooth surface and high strength.
Surface process of plain steel bar grating:
There are three types:hot-dipped galvanized ,electro-galvanized and spraying brushing and soaking.anti-acid and alkali corrosion capacity the range PH6 to PH12.5,a stable protective film will be formed on the zinc surface.it has good anti-corrosive property.
Plain bar grating specifications:
No | Item | Description |
1 | Bearing bar | 25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm |
2 | Bear 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. |
3 | Cross bar pitch | 38, 50, 76, 100, 101.6mm |
4 | Material | ASTM A36, A1011, A569, Q235 |
5 | Surface treatment | Black, hot dipped galvanising, paint or as your requirement |
6 | Standard | China: YB/T 4001.1-2007 Japan: JJS |
USA: ANSI/NAAMM(MBG531-88) | ||
UK: BS4592-1987 | ||
Australia: AS1657-1985 |
high strength, light structure with firm grids pressure welded structure and high bearing property, easy suspending installation, beautiful appearance ,durability with hot galvanized finish, good anti-corrosive property, and bright surface, good ventilation, lighting. cooling and anti-explosion. and deposit-proof.
widely used in petroleum chemical industry, power plants, water plants, sewage treatment plants, municipal works, sanitation engineering and other fields of the platforms, walkways, trench trestle bridge cover, covers, ladders, fence, fence, etc.