Galvanized Serrated Flat Steel Grating With Twisted Square Rod For Stairs And Treads
Description:
Steel Grating is designed to hold heavy loads with minimal weight. The gratings are made of bearing bars and cross bars. The bearing bar is the main load carrying bar which runs the same direction as span. The cross bars are connectors made from a strip or rolled bars which extent across or through the bearing bars. Cross bars are welded, forged or mechanically locked.
1. Bearing Bar (Load Bar) Specifications (mm):
The specification of plain type and serrated type bearing bar is 25 x 3 to 100 x 8; The specification of I-section type is 25 x 5 x 3, 32 x 5 x 3, 38 x 5 x 3, 40 x 5 x 3, 50 x 5 x 3, 50 x 7 x 4, 55 x 7 x 4, 60 x 7 x 4, 65 x 7 x 4, 70 x 7 x 4, 75 x 7 x 4, etc.
2. Bearing Bar Pitch (center to center):
12.5, 25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm etc, also be according to client's requirement and 30, 40, 60mm are recommended, America standard is available <1'' x 3/16'', 1 1/4'' x 3/16'', 1-1/2'' x 3/16'', 1'' x 1/4'', 1-1/4'' x 1/4'', 1 1/2'' x 1/4''(19-w-4) and so on. >
3. Material:
Mild Steel (Low Carbon Steel) or Stainless Steel
4. Surface Treatment:
Untreated, Painting or Hot DIP Galvanizing
Common specifications:
Steel Grating Standard | Steel Standard | Galvanized Standard |
China standard | YB/T 4001.1-2007 | GB/T 13912-2002 |
USA standard | ANSI/NAAMM(MBG531) | ASTM(A123) |
U.K.standard | BS4592 | BS729 |
Australia standard | AS1657 | AS1650 |
Product Name | Serrated Steel Grating |
Material | Low Carbon Steel/Stainless Steel |
Grade | CN:Q235,Q345, US:A36,UK:43A |
Standard | CN: YB/T4001-1998, US: ANSI/NAAMM, UK: BS4592-1987, AUS1657-1988, JJS |
Certification | CE, GOST, ISO9001, ISO14001, HSE |
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 | 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 |
Application:
Serrated galvanized anti slip grating used in walkway flooring, catwalk, mezzanines/decking, stair tread, fencing, ramps, dock, trench cover, drainage pit cover, maintenance platform, pedestrian/crowded pedestrian, factory, workshop, motor rooms, trolley channel, heavy loading area, boiler equipment and heavy equipment area, office buildings, apartments, train stations, department, stores, hospitals, amusement parks,hoggery, welded bridge grating etc
Packaging and shipping:
1. steel grating panels packed in bundle then fixed by steel or plastic belt onto metal or wooden pallets as the general export package. The pallets size
2. Customers' requirement is accepted.