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Steel grating is available in varied form suitable for different application and overall load conditions. Hot dip galvanizing or painting can make them in excellent appearance, durability and enhanced economy. Galvanized steel grating is widely used in Power Station, Chemical Industry, Oil & Gas Industry, Boiler Plant, Mining and Refinery, etc.
1. Material
Mild Steel (Low Carbon Steel) or Stainless Steel
2. Specifications
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.
| No. |
Item |
Description |
| 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 |
| 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. |
| 3 | Twisted Cross Bar Pitch | 38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc |
| 4 | Material Grade | ASTM A36, A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc |
| 5 | Surface Treatment | Black, self colour, hot dip galvanized, painted, spray coating |
| 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, Japan:JIS |
Procedure
Hot-dipped galvanized ,electro-galvanized and spraying brushing and soaking.anti-acid and alkali corrosion capacity the range PH6 to PH12.5,a stable protective film will be formed on the zinc surface.it has good anti-corrosive property
Type
*Flat bar:plain type, plain I type, serrated type, serrated I type;
*Cross bar:round type and square twisted type.
Finishing treatment
*Steel grating untreated: Allowing quicker delivery to customers whom fabricate and galvanize the
grating on their own.
*Galvanized: Hot Dip Galvanizing can give a hygienic and clean maintenance free bright finish.
Packing
Conditions of steel grating:normally packed in pilling up ways with two pieces of square wood on both upperand bottom sides.there are four or six pieces of M10 long bolt penetrading the gratings and screwing together.it is suitable for loading and unloading by fork-lift and crane.
Standards
*China: YB/T4001.1-2007
*U.S.A.: ANSI/NAAMM (MBG531-88)
*U.K.: BS4592-1987
*Australia: AS1657-1985
*Japan: JJS
Advantage
*Light weight
*High strength
*Great load-bearing capacity
*Economic cost
*Ventilation and light admission
*Modern fashion and attractive appearance
*Non-slip and safety
*Easy cleaning and installation
*Durability
Application
Steel Grating can use as Flooring steel gratings,stair treads,sun shades,drain covers,security screen,manhole covers,mezzanine flooring,earth mats,shelving,Stanchions (hand rails),trench
covers etc.
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