Customization: | Available |
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After-sales Service: | 3D Modeling/Video of Installation/3D Sample Models |
Warranty: | More Than 10 Years |
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Stair tread steel gratings, also called grating steps, are made of low carbon steel or stainless steel. It is one of the most widely used and popular types of steel gratings. With the features of high strength, high bearing capacity, wear resistance, resistance to extreme temperature wind and rain, non-slip, anti-corrosion, beautiful and easy to install and remove extend the lifespan, stair tread steel grating is widely used as different types of steel ladders in the factory, school, park, stadium, civil and commercial buildings.
Different classifications of stair tread steel grating
Item
|
Description
|
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 |
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
|
Material Grade
|
ASTM A36, A1011, A569, Q235, S275JR, SS304, SS400,
Mild steel & Low carbon steel, etc |
Surface Treatment
|
Black, self colour, hot dip
galvanized, painted, spray coating |
Grating Style
|
Plain / Smooth, Serrated /teeth type , I bar, serrated I bar
|
Standard
|
China: YB/T 4001.1-2007,
USA: ANSI/NAAMM(MBG531-88), UK: BS4592-1987, Australia: AS1657-1985, Germany: DIN24537-1-2006, Japan :J |
Stainless steel grating is regarded as industrial grade bar grating, which is extremely strong, durable and corrosive resistant for all load bearing applications and is primarily used for pedestrian and light vehicle traffic.
Welded steel grating is one of the most commonly used steel grating, also called metal open bar grating. Welded steel grating is made of carbon steel or stainless steel. Welded steel grating has anti-slip surface, corrosion resistance, good drainage function, high strength and load capacity. So it is widely used as walkway, stair, fence, shelf, ceiling and floor in many places.
Classification of serrations:
Features:
* High strength and load capacity.
* Anti-slip surface.
* Corrosion resistance.
* Good drainage function.
* Easy to install and maintain.
Specifications:
Item | Specifications of Bearing Bar (mm) |
Diameter of Cross Bar (mm) |
Pitch of Bearing Bar (mm) |
Pitch of Cross Bar (mm) |
---|---|---|---|---|
TYPE 1 | 20 × 3 | 6 | 30 | 100 |
TYPE 2 | 20 × 5 | 6 | 30 | 100 |
TYPE 3 | 30 × 3 | 6 | 30 | 100 |
TYPE 4 | 30 × 4 | 6 | 30 | 100 |
TYPE 5 | 30 × 5 | 6 | 30 | 100 |
TYPE 6 | 32 × 3 | 6 | 30 | 100 |
TYPE 7 | 32 × 5 | 6 | 40 | 100 |
TYPE 8 | 35 × 3 | 6 | 40 | 100 |
TYPE 9 | 35 × 5 | 6 | 40 | 100 |
TYPE 10 | 40 × 3 | 6 | 40 | 50 |
TYPE 11 | 40 × 4 | 6 | 40 | 50 |
TYPE 12 | 40 × 5 | 6 | 40 | 50 |
TYPE 13 | 45 × 5 | 10 | 60 | 50 |
TYPE 14 | 50 × 5 | 10 | 60 | 50 |
TYPE 15 | 55 × 5 | 10 | 60 | 50 |
TYPE 16 | 60 × 5 | 10 | 60 | 50 |
TYPE 17 | 65 × 5 | 10 | 60 | 50 |
TYPE 18 | 70 × 5 | 10 | 60 | 50 |
Applications of welded steel grating: