Flooring Hot Dip Serrated Galvanized Steel Grating Stair Tread Long Life
Steel Grating, Flooring Grating, Hot Dip Galvanized Steel Grating, Stair Tread.
Description:Steel Bar Gratings are manufactured with the world’s first-class computer-controlled pressure resistance welding machine by electro-forging the twisted square-steel into flat steel.Steel Bar Gratings are classified into three styles,namely plain style,serrated and I style as per the upper edges of bearing bars .More than 200 varieties are available based on specifications and spacing of bearing bars ,and that of cross roda.Different protective treatment can be made on the surface as environment varies.
1) Bearing Bar (Load Bar) Specifications (mm):
The specification of plain type and serrated type bearing bar is 20 x 3 to 100 x 10; 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, 15, 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) Cross Bar Pitch (center to center):
38.1, 40, 50, 60, 76, 80, 90, 100, 101.6, 102, 135mm and so on
4) Material:
Mild Steel (Low Carbon Steel) or Stainless Steel
5) Surface Treatment:
Untreated, Painting or Hot DIP Galvanizing
6) Steel grating standards:
A) China: YB/T4001-1998
B) USA: ANSI/NAAMM (MBG531-88)
C) UK: BS4592-1987
D) Australia: AS1657-1985
E) Japan: JJS.
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Specifications of serrated welded steel grating
- Materials: low carbon steel, stainless steel.
- Surface treatment: galvanized, powder coating, painted color.
- Height of bearing bar: 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm.
- Thickness of bearing bar: 2 mm, 3 mm, 4 mm, 5 mm.
- Mesh size: 34 mm × 38 mm
- Packaging:Strap packing.
- Pallet packing.
Screw rod fixation.
Features of serrated welded steel grating
TOP SURFACE
Typically supplied with a plain surface. On our most popular products a Serrated surface (S) is also available. Please refer to the loading charts in this section of the catalogue to see which Mild Steel grating types are available with a Serrated surface.
Learn Steel Grating
| No. | Item |
Description
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| 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
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| 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.
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| 3 | Twisted Cross Bar Pitch |
38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc
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| 4 | Material Grade |
ASTM A36, A1011, A569, Q235, S275JR, SS304, SS400, Mild steel & Low carbon steel, etc
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| 5 | Surface Treatment |
Black, self colour, hot dip galvanized, painted, spray coating
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| 6 | Grating Style |
Plain / Smooth, Serrated /teeth, I bar, serrated I bar
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| 7 | Standard |
China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88), UK: BS4592-1987, Australia: AS1657-1985, |
Function of heavy-duty steel grating
- 1.Widely used in shipbuilding, harbor, oceanographic engineering, building, paper mills, cement plant, medicine, spinning and weaving.
- 2.It Is applied in food stuff factory, transportation, municipal administration, parking lot , etc.
- 3. Also used by various plants such as electric power, petroleum,chemical industry.
High strength and high bearing capacity:
- Non-slip, anti-corrosion, not easy to deform.
- High safety performance.
- Do not accumulate rain, snow and dust.
- Simple and beautiful appearance.
- Easy to install and remove to extend the lifespan.
- Applications of serrated welded steel grating
- Serrated welded steel grating is widely used as platforms, stair treads, walkaways and floors in industrial, civil and commercial buildings.
Feature Advantage
- 1. Anti-corrosive, resisting to acid and alkali
- 2. Light weight, great load-bearing capacity, on-slip and safe, easy installation
- 3. Being economical of materials, being sturdy and durable, ventilation
- 4. Easy to clean and attractive appearance.
Steel grating standard:
| Country | Steel grating standard | Steel material standard | Hot galvanizing standard |
| China | YB/T4001-1998 | GB 700-88 | GB/T13912-2002 |
| USA | ANSI/NAAMM(MBG531-88) | ASTM (A36) | ASTM(A123) |
| England | BS4592-1987 | BS4360 ( 43A) | BS729 |
| Australia | AS1657-1992 | AS3679 | AS1650 |
Type of Steel Grating
Comparison of Feature:
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Process of steel grating:
Manufacturing Tolerance of the Gratings
There is no maximum allowable tolerance for every dimension given here.
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