Specification
| 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% |
applications of our steel grating
It is widely used for platform, aisle, trestle, drain cover,
manhole cover, steel ladder, fence, and guardrail in the fields
including petrochemical, power station, sewage treatment plant,
mechanical manufacture, mechanical and electrical equipment, paper
mill, cement plant, pharmacy, food processing, municipal
engineering, environmental engineering, etc.
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 galvanized steel 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 |
Characteristics of Heavy Duty Stainless Steel Grating :
Light weight, high strength, large carrying capacity, the
provincial economy, ventilation pervious to light, modern style,
beautiful appearance. Antiskid safe, easy to clean, easy
installation, durable. Ventilation, lighting, cooling,
explosion-proof, non-slip performance is good. Acid and alkali
corrosion capability: within the scope of the PH 6 to PH 12.5, form
stable protection membrane on the surface of zinc layer, good
corrosion resistance.
why Choose Us?
It has 20 processional product line, including: cutting machine---straightener-----welding machine----bending
machine ---sand blasting machine--shot blasting machine---galvanized/hot-dipped facility ---PVC painted machine---PVC Coated machine. |
| 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 |
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.
Packaging of Heavy Duty Stainless Steel Grating :
There are three methods of packaging
1.Packaged with baling
2.Screw rod fixed
3.metal pallent
Mainly according to the customer, Everything for the customer
convenience, protection products shall not be subject to damage in
transit.
Why choose us?
1)We have a standard manufacture line and complete quality control
system to ensure high quality products to reach your requirements.
2)We own most advanced production equipments
3)We have more than ten years experiences about manufacturing and
exporting.
4)We own more than ten senior engineers,they can promise our
product technology in the industry in a leading level.
