steel grating/expanded metal/metal grate/bar grating/metal
mesh/floor grates/aluminum grating/catwalk grating
steel grating application range
| Power plants | Sewage treatment | The ship manufacturing | Municipal engineering | Nuclear power plants | Room of the lacquer that bake |
| Desulfurization tower | Offshore platform | Industrial platform | High tower | Water supply and drainage | The steel structure |
| smelters | Pharmaceutical manufacturing | Painting workshop | Stereoscopic parking | Cement plant | Selected mining |
| chemical plant | Safety protection | Food processing | Storage shelves | Light industry | The scaffold |
Specification
| Matrial | Low carbonsteel / Stainless steel |
| Grade | CN: Q235, Q345 ; UK: 43A |
| Bearing bar size | 20X5, 25X3, 25X4, 25X5, 30X3, 30X4, 30X5, 32X3, 32X5, 40X5, 50X4...
75X8, 100X8mm, 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: | 1000x1000mm, 1000x2000mm, 1000x3000mm, 1000x6000mm |
| Surface treatment | Untreated, hot DIP galvanized, cold DIP galvanized, painted, powder
coated, pickling, electrolytic polishing, or as customers’
requirement. |
Most Popolar
| NO. | Bearing size(mm) | Cross bar pitch(mm) | Weight(kg/square meter) |
| G253/30/50 |
25x3 | 50 | 25.7 |
| G253/30/100 | 100 | 22.8 |
| G255/30/50 |
25x5 | 50 | 39 |
| G255/30/100 | 100 | 36.2 |
| G323/30/50 |
32x3 | 50 | 31.3 |
| G323/30/100 | 100 | 28.4 |
| G325/30/50 |
32x5 | 50 | 48.4 |
| G325/30/100 | 100 | 45.5 |
Surface treatment: untreated(black), hot-dipped galvanized ,powder coated,
electroplate,
painting or as per customers’ requirement.
Specification of bar grating:
| Common specification of Steel grating |
| Material Standard | ASTM A36, A1011, A569, Q235, S275JR,Stainless steel 304, Mild steel & Low carbon steel, etc |
Bearing Bar (width*thickness) | 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10…..100 x10mm etc; I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc US standard: 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'',
1''x1/4'',1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1/4''x1/8'', 1
1/2''x1/8'' etc |
| Bearing Bar Pitch | 12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3,32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc. US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc. |
| Twisted Cross Bar Pitch | 38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc |
| Surface treatment | untreated(black), hot-dipped galvanized ,powder coated, electroplate, painting or as per customers’ requirement. |
| Grating Style | Plain / Smooth, Serrated /teeth, I bar, serrated I bar |
Floor Grates
1) Material: Mild Steel Q235 or Stainless Steel such as ss304 ss304L ss316
ss316L...
2) Surface Treatment: Hot dip galvanized , Painted , Untreated.
3) Shape of bearing bars: Plain bar style , Serrated bar style , I Bar style
4) Market: USA , Middle East ---Kuwait, UAE, Saudi Araia; Australia, Europe
and Southeast
Tolerance of hot dip galvanized steel grating
The allowed deviation of length is +0/-5mm, while the allowed
deviation of width is +/-5 mm.
The non-perpendicularity of bearing bar is allowed no more than 10%
of width of bearing bar.
Cross bar surface should not surpass bearing bar surface 1mm,
beginning & end of cross bar should not surpass the end surfaces of
two sides of grating 2mm.
common size:
| Bearing Bar Spacing | Cross Bar Spacing | Bearing Bar Specification(Depth×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 Spacing | Cross Bar Spacing | Bearing Bar Specification(Depth×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 |
Grating Standard Packing Method:
1. Bandage and Paperboard: Generally applies to neat steel plate;
2. Screw Locking Method: Use 4 screw rods through the aperture of
the steel grid, for high strength;
3. Steel Pallet: Traditional export packing.
4. According to customer's packing requirements.
Q1: Can I have a sample order?
A: Yes, we welcome sample order to test and check quality. Mixed
samples are acceptable.
Q2: What about the lead time?
A: Sample needs 3-5 days, mass production time needs 1-2 weeks for
order quantity more than.
Q3: Do you have any MOQ limit?
A: Low MOQ, 1pc for sample checking is available.
Q4: How do you ship the goods and how long does it take to arrive?
A: We usually ship by airline and sea shipping.
Q5: How to proceed an order?
A: Firstly let us know your requirements or application.
Secondly we quote according to your requirements or our suggestions.
Thirdly customer confirms the contract and places deposit for formal order.
Fourthly we arrange the production.
