High Strength Serrated Bar Grating Stair Treads for Catwalks / Factories
High Strength Serrated Bar Grating Stair Treads for Catwalks / Factories
Bar grating stair treads; stair treads; marco steel
Stainless Steel and aluminum stair treads are available in a variety of styles: welded, press-locked, swage-locked.
Welded Steel Stair Treads are the most widely used for their strength and ease of installation and are universally used in most industrial and commercial applications.
Aluminum Stair Treads, due to their lightweight, high strength, corrosion resistance, rustproof, and non-sparking properties, are ideally suited for corrosive environments, food preparation, storage areas, and volatile areas.
Swage-Locked I-Bar Stair Treads offer you high strength at less weight and lower cost.
Rectangular Bar, press-locked or swage-locked, stair treads provide a higher strength and stiffness-to-weight ratio and are available with a serrated surface when additional safety is required.
All stair treads can be custom fabricated to meet the size, width, and length specifications of a particular job. In addition, standard end plates can be custom-fabricated to meet special bolt hole size or location requirements. Stair treads come in 2 types, smooth and serrated.
Features of Serrated Surface Steel Bar Grating Stair Treads
Easy to ship and install
High strength, high bearing capacity
Nice, clean, and modern appearance
Non-slip, anti-corrosion, wear resistance
Resistance to extreme temperatures, wind, and rain
Easy to keep clean, they don’t accumulate dust and rain
Applications of Serrated Surface Steel Bar Grating Stair Treads
Catwalks
Factories
Schools
Stadiums
Mezzanines
Parks and zoos
Oil and gas rig
Crossover platforms
Commercial buildings
Mining and minerals
Power and energy sector
Rooftop walkway systems
Wastewater treatment facilities
Residential apartments and condos
Specifications of Serrated Surface Steel Bar Grating Stair Treads
| Type | Plain / Smooth, Serrated /teeth, I bar, serrated-I bar |
| Load /Bearing bar size | 20×3,25×3,25×5,30×3,30×4,30×5,32×3,32×5……120×10mm,etc. |
| Load /Bearing bar pitch | 12.5,15,20,25,30,35,40,50mm |
| Transverse /Cross bar pitch | 38,50,80,100mm |
| Material | Low carbon steel, stainless steel, aluminum alloy |
| Surface treatment | Untreated, hot galvanized, painting,electro galvanized |
|
Grating Standard |
China: YB/T 4001.1-2007 USA: ANSI/NAAMM(MBG531-88) UK: BS 4592-1987 Australia: AS 1657-1985 |
|
Material standard |
China: GB 700-88 UK: BS 4360:1990 USA: ASTM A36/A36M-96 AUSTRALIA: AS 3679 |
|
HDG standard |
CHINA: GB/T13912-2002 UK: BS729 USA: ASTM A123/A123M-97a AUSTRALIA: AS 1650 |
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