open steel grating/galvanised steel walkway/used grating for sale/perforated metal bar/catwalk metal grating
Catwalk metal grating, is specially designed with a good percentage of open gaps,and suitable for use in areas requiring good ventilation and emission of light. Its installation is easy and simple, and hence time saving.
As the grating is easily cut according to required specifications, that makes the field work simple and quick.
Popular specifications for your reference
| No. | Item | Description |
| 1 | Bearing Bar | 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10,100x10mm 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. |
| 2 | 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. |
| 3 | Twisted Cross Bar Pitch | 38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2' & 4' etc |
| 4 | Material Grade | ASTM A36, A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc |
| 5 | Surface Treatment | Black, self colour, hot dip galvanized, painted, spray coating |
| 6 | Grating Style | Plain / Smooth, Serrated /teeth, I bar, serrated I bar |
| 7 | Standard | China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88), UK: BS4592-1987, Australia: AS1657-1985, Japan:JIS |
| 8 | Application | -Rotation ways, channels, and platforms for pump rooms and engine rooms in various ships; -Flooring in various bridges such as railway bridge sidewalks, over-bridges across the street; -Platforms for oil extraction sites, car washing sites and air towers; -Fencings for car-parks, buildings and roads; drainage trench covers and drainage pit covers for high strength . |
Tolerance of hot dip galvanised steel walkway
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.
Specification of factory price hot dip grating for sale:
| Item 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 | G203/60/50 | G253/60/50 | G253/60/50 | G403/60/50 | G205/60/50 | G255/60/50 |
The executive standard of open steel grating
| Country | Standard for steel grid | Standard for steel material | Standard for hot dipped galvanization |
| China | YB/T4001.1-2007 | GB700-88 | GB/T13912-92 |
| USA | ANSI/NAAMM(MBG531-88) | ASTM(A36) | ASTM(A123) |
| UK | BS4592-1987 | BS4360(43A) | BS729 |
| Australia | AS1657-1985 | AS3679 | AS1650 |
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.
Pre-sale Service
1. Sample can be offered free fastly while courier fee paid by buyer's side.
2. We have full stock, and can deliver within short time. Many styles for you to choose.
3. OEM and ODM order are accepted, any kind of logo printing or design are available.
4. Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you
5. All of our products are produced by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.
6. We have rich experience of design, manufacture and sell solar water heater, we cherish every order from our honor.
After you choose
1. We will count cheapest shipping cost and make invoice to you at once.
2. Check quality again, then send out to you at 1-2 working day after your payment,
3. Email you the tracking no, and help to chase the parcels until it arrive you.
After-sale service
1. We are very glad that customer give us some suggestion for price and products.
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open steel grating/galvanised steel walkway/used grating for sale/perforated metal bar/catwalk metal grating Images
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