Open Grating Stair Treads Profile
We manufacture different styles of Open Grating Stair Treads that used in family,industry and construction.
Material: mill steel black and hot dip Galvanizing / and stainless grating
Fields of Open Grating Stair Treads Application:
Light chemical industry, Petrol-chemistry, Machinery industry, Textile chemistry,
Port engineering, Oil and grease chemistry, Agriculture husbandry, Horticulture,
Steel industry, Waste disposal, Food processing, Aquatic breeding, Fertilizer
Industry, Pharmaceutical industry, Parking lots, Cement plants, Oil refinery,
Mining and refinery, Power plants, Public utility, Marine engineering, Shipbuilding,
Construction material industry, Defense projects, Airport projects, Water plants,
Sewage disposal, Paper and pulp industry, Construction industry, Transportation
Industry, Automotive industry
Open Grating Stair Treads type
1)There are four kinds of stair treads T1,T2,T3,T4.
T1 Welded fixing and Without nosing
T2 Bolted fixing and without nosing,easy to installation and teardown.
T3 Welded fixing and with checkered plate nosing, can be skid.
T4 Bolted fxing and with checkered plate nosing, easy be installation,
teardown and can be skid.
2) Material: Mild Steel (Low Carbon Steel) or Stainless Steel
3) Surface Treatment:
Untreated, Painting ,Powder coated or Hot dip Galvanizing
4) Steel grating standards:
A) China: YB/T4001-1998
B) USA: ANSI/NAAMM (MBG531-88)
C) UK: BS4592-1987
D) Australia: AS1657-1988
E) Japan: JJS
Open Grating Stair Treads specification
Pitch of Bearing bar |
Cross-bar Pitch |
Specification of bearing bar load(width×thickness) |
32×5 |
40×5 |
45×5 |
50×5 |
55×5 |
60×5 |
30 |
100 |
G325/30/100 |
G405/30/100 |
G455/30/100 |
G505/30/100 |
G555/30/100 |
G605/30/100 |
50 |
G325/30/50 |
G405/30/50 |
G455/30/50 |
G505/30/50 |
G555/30/50 |
G605/30/50 |
40 |
100 |
G325/40/100 |
G405/40/100 |
G455/40/100 |
G505/40/100 |
G555/40/100 |
G605/40/100 |
50 |
G325/40/50 |
G405/40/50 |
G455/40/50 |
G505/40/50 |
G555/40/50 |
G605/40/50 |
60 |
50 |
G325/60/50 |
G405/60/50 |
G455/60/50 |
G505/60/50 |
G555/60/50 |
G605/60/50 |
