Specifications

galvanized stair treads steel grating weight
surface treatment:galvanized
painted,untreated
benefit:anti-corrosion,durable

     exported galvanized steel step plate/stair treads steel grating weight in China

 

      Steel grating is flat steel bar according to a certain distance and cross arranged and 

 

welded into the middle of a square lattice with an iron and steel products ,steel grating 

 

generally use carbon steel production,appearance of hot dip galvanized,can serve to prevent

 

the role of oxidation,can also be made of stainless steel .

 

 

Product Detail

 

 

 

 

Surface process of gratings: there are three types:hot-dipped galvanized ,electro-galvanizedand 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.

 

 

 

 

Product Features

 

    High strength, light structure, a strong bonding structure of the grid so that it has a high load, the structure of light, easy lifting; shape beautiful, durable, hot-dip zinc surface treatment so that it has a very good corrosion resistance, surface gloss appearance ; ventilation, lighting, cooling, explosion-proof, anti-skid performance is good; no plot dirt, rain and snow is not the plot, not water, self-cleaning, easy to maintain.

 

Product Advantage

  

   Light weight, great load-bearing capacity, non-slip and safe, easy installation, material-economic, sturdy and durable, ventilated, easy to clean and attractive appearance.

  

 

Steel Grating Standardizations

 

Countries	National Standards for Grating	Materials	Galvanizing Standards
China	YB/T 4001.1-2007	GB 700-88	GB/T13912-2002
America	ANSI/NAAMM(MBG531-00)	ASTM(A36)	ASTM(A123)
Britain	BS4592-1995	BS4360(43A )	BS729
Australia	AS1657-1992	AS3679	AS1650

 

 

Common Specification

 

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: AS1657-1992, Japan:JIS

 

 

 Other Types (according to customers' requirment custom)

 

 

 

 

 

 

Product  Application

 

 

     widely used in petroleum chemical industry, power plants, water plants, sewage treatment plants, municipal works, sanitation engineering and other fields of the platforms, walkways, trench trestle bridge cover, covers, ladders, fence, etc.