Low Carbon Walkway, Floor Drain Grate for Building Material
Steel Grating is made by welding with flat steel and bars with certain
distances. It goes through cutting, opening, edging and other
processes. The products enjoy the feature of high strength, light
structure, high bearing, convenience for loading and other
propertier. The hot dipped zinc coating gives the product excellent
anti-corrosion. here is the advantage of steel structure:
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.
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
Specification of Steel Grating
| No. | Item | Description |
| 1 | Bearing Bar Size | 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5,
50x5, 65x5, 75x6, 75x10---100x10mm etc. |
| I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etcUS 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, 31, 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 | Cross Bar Size and Pitch | Twisted bars 5x5, 6x6, 8x8mm; Round bars Dia.6, 7, 8, 9, 10, 12mm
and so on. |
| 38.1, 40, 50, 60, 76, 80, 100, 101.6, 120, 135mm, 2'' & 4'' etc. |
| 4 | Material Grade | ASTM A36, A1011, A569, Q235, S275JR, SS400, Mild steel & Low carbon
steel, etc. |
| Stainless steel SS304, SS316.s335jr |
| 5 | Surface Treatment | Black, self colour, hot dip galvanized, painted, powder coating,
electrolytic polishing. |
| 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,Germany: DIN24537-1-2006,
Japan: JIS. |
| 8 | Panel Size: | 3x20ft,3x24ft,3x30ft,5800x1000, 6000x1000, 6096x1000,6400x1000, as
request |
| 9 | Application: | oil refinery,petroleum and chemical Industry, Seaport and airport,
power plant, transportation, papermaking, medicine, steel and iron,
food, municipality, real estate,
manufacturing,metallurgy,railway,boiler,military
project,storage,etc |
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.
The applications of steel grating:
- -Fencings for car-parks, buildings and roads; drainage trench
covers and drainage pit covers for highways;
- -Flooring in various bridges such as railway bridge sidewalks,
over-bridges across the street;
- -Rotation ways, channels, and platforms for pump rooms and engine
rooms in various ships;
- -Platforms for oil extraction sites, car washing sites and air
towers;
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:
Plain:One of the most widely used grating, available for flooring,
sidewalk, dranage pit cover, stair tread, etc.
| 
Serrated:Better non-skid property & safety comparing to plain grating
| 
I-shape:Lighter, more economical and practical comparing to plain grating.
|
Process of steel grating:
Manufacturing Tolerance of the Gratings
There is no maximum allowable tolerance for every dimension given
here.
