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serrated bar grating/steel grates for driverways/steel mesh flooring/galvanized bar grating/steel grid mesh
Product information of welded grating
1.)Steel grating material:carbon steel or stainless steel 2) cross bar pitches:maybe 24-200mm,of which 50mm,76mm and 100mm are recommended. 3) Steel 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. 4) Surface process of gratings: 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. | Steel grating,welded grating |
Material | Low carbon steel / Stainless steel |
Grade | CN: Q235, US: A36, UK: 43A |
Standard | CN: YB/T4001-1998, US: ANSI/NAAMM, UK: BS 4592-1987, AU 16571988,
JJS |
Certification | CE, ISO9001, ISO14001, HSE |
Bearing bar size | 20X5, 25X3, 25X4, 25X5, 30X3, 30X4, 30X5, 32X3, 32X5, 40X5, 50X4...
75X8mm, etc |
Bearing bar pitch | 20,25,30,32.5,34.3,40,50,60,62,65mm |
Bearing bar type | Plain, Serrated (tooth-like), I bar (I section), Serrated-I |
Cross bar size | 5X5, 6X6, 8X8mm (twisted bar)/5, 6, 8mm ( round bar) |
Cross bar pitch | 40, 50, 60, 65, 76, 100, 101.6, 120, 130mm, etc. |
Panel size | 3x20ft,3x24ft,3x30ft,5800x1000,6096x1000,7315x1000, as request |
Surface treatment | Untreated, hot DIP galvanized, cold DIP galvanized, painted, powder
coated, pickling, electrolytic polishing, or as customers’
requirement. |
Galvanization Standard | CN: GB/T13912, US: ASTM (A123), UK: BS729 |
Color | Silver/Black |
Application | petroleum and chemical, port, power, transportation, papermaking,
medicine, steel and iron, food, municipality, real estate,
manufacturing |
Specification(mm)
NO. | Bearing bar pitch | Cross bar pitch | Specification of bearing bar load( width × thickness ) | |||||
20×3 | 25×3 | 32×3 | 40×3 | 20×5 | 25×5 | |||
1 | 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 | ||
2 | 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 | ||
3 | 60 | 50 | - | G253/60/50 | G253/60/50 | G403/60/50 | G205/60/50 | G255/60/50 |
NO. | Bearing bar pitch | Cross bar pitch | Specification of bearing bar load( width × thickness ) | |||||
32×5 | 40×5 | 45×5 | 50×5 | 55×5 | 60×5 | |||
1 | 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 | ||
2 | 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 | ||
3 | 60 | 50 | G325/60/50 | G405/60/50 | G455/60/50 | G505/60/50 | G555/60/50 | G605/60/50 |
Steel grating specification:
Number | Item | Specification |
1 | Bearing bar | 25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,75x10(mm) |
2 | Bearing bar pitch | 30mm,40mm,60mm as usual |
3 | Cross bar pitch | 38mm,50mm,100mm,101.6mm,etc |
Steel grating standard:
Country | Steel grating standard | Steel material standard | Hot galvanizing standard |
China | YB/T4001-1998 | GB 700-88 | GB/T13912-2002 |
USA | ANSI/NAAMM(MBG531-88) | ASTM (A36) | ASTM(A123) |
England | BS4592-1987 | BS4360 ( 43A) | BS729 |
Australia | AS1657-1992 | AS3679 | AS1650 |
Series | striate-bar pitch | Cross-bar Pitch | ||||||
Specification of bearing bar load(width×thickness) | ||||||||
20×3 | 25×3 | 32×3 | 40×3 | 20×5 | 25×5 | |||
1 | 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 | ||
2 | 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 | ||
3 | 60 | 50 | G253/60/50 | G253/60/50 | G403/60/50 | G205/60/50 | G255/60/50 | |
Series | Pitch of Bearing bar | Cross-bar Pitch | ||||||
Specification of bearing bar load(width×thickness) | ||||||||
32×5 | 40×5 | 45×5 | 50×5 | 55×5 | 60×5 | |||
1 | 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 | ||
2 | 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 | ||
3 | 60 | 50 | G325/60/50 | G405/60/50 | G455/60/50 | G505/60/50 | G555/60 |
Width (H) | Edge Thickness (A) | Middle Thickness (B) | Middle Width (C) | Edge Width (d) | ||||
Nominal Size | Tolerance | Nominal Size | Tolerance | Nominal Size | Tolerance | Nominal Size | Tolerance | |
25 | ±0.4 | 5 | ±0.3 | 3 | ±0.3 | 14 | 4.5 | ±0.5 |
32 | 18 | 6 | ||||||
38 | 22 | 7 | ||||||
44 | 26 | 8 | ||||||
50 | 31 | 8.5 | ||||||
50 | ±0.5 | 7 | ±0.4 | 4 | 31 | 8 | ||
55 | 35 | 8.5 | ||||||
60 | 37 | 10 | ||||||
65 | 42 | 10 | ||||||
75 | 48 | 12 |
Application
Steel grating is suitable for alloys, building materials, power
stations, boilers, shipbuilding, petrescence
chemical and general industrial plants, municipal construction and
other industries.
Different kinds galvanized serrated steel grating
There are three kinds of steel gratings, they are Plain Style Steel Grating, Serrated Style Steel Grating and I Bar Type Steel Grating. They are widely used in steel structure platforms, stair treads, sidewalks, drainages and well covers etc. We can design and manufacture standard steel grating and in customized shapes per client's requirements.
1)In bulk for full containers;
2)Inside with waterproof film, outside by steel pallets;
3)OEM packing;
4)See our packing photos as below:
3' width x 6m length
40cm width x 100cm length
Stair tread