Hot Dipped Galvanized Steel Stair Treads Grating Various
Specifications
Product descriptions
Stair treads is deep-processed products combination of non-slip and side
panels. Mainly used for stepping on the ladder, it is usually
referred to as stair treads. According to installation, stair
treads general can be divided into two types:welding fixing and
bolted fixing. If welded directly to the support and does not
require additional stepping on the side panels, relatively
economical and durable, but not easy to disassemble. Bolt treads on
both sides have the thicker panel, and punch a hole in the side
panel, the installation is a direct bolt-on, reusable recycling.
From economic point of view, as far as possible use the proposed
module width (Series 1 using 125,155,185,215,245,275, Series 2
using 125,165,205,245,275 mm, etc.) as a multiple of 100mm length
(such as 500, 600,700,800,900,1000,1200 mm, etc.).
raw material of steel grating
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 |
| Series | Series distance | Traverse line distance | Load flat specification |
| 20x3 | 25x3 | 32x3 | 40x3 | 20x5 | 25x5 |
| 1 | 30 | 100 | G203/30/100 | G253/30/100 | G323/30/100 | G403/30/100 | G205/30/100 | G255/30/100 |
| 50 | G203/30/50 | G253/30/50 | G323/30/50 | G403/30/50 | G205/30/50 | G255/30/50 |
| 2 | 40 | 100 | G203/40/100 | G253/40/100 | G323/40/100 | G403/40/100 | G205/40/100 | G255/40/100 |
| 50 | G203/40/50 | G253/40/50 | G323/40/50 | G403/40/50 | G205/40/50 | G255/40/50 |
| 3 | 60 | 50 | -- | G253/60/50 | G323/60/50 | G403/60/50 | G205/60/50 | G255/60/50 |
| series | Series distance | Traverse line distance | Load flat specification |
| 32x5 | 40x5 | 45x5 | 40x5 | 55x5 | 60x5 |
| 1 | 30 | 100 | G325/30/100 | G405/30/100 | G455/30/100 | G403/30/100 | G555/30/100 | G605/30/100 |
| 50 | G325/30/50 | G405/30/50 | G455/30/50 | G403/30/50 | G555/30/50 | G605/30/50 |
| 2 | 40 | 100 | G325/40/100 | G405/40/100 | G455/40/100 | G403/40/100 | G555/40/100 | G605/40/100 |
| 50 | G325/40/50 | G405/40/50 | G455/40/50 | G403/40/50 | G555/40/50 | G605/40/50 |
| 3 | 60 | 50 | G325/60/50 | G405/60/50 | G455/60/50 | G403/60/50 | G555/60/50 | G605/60/50 |
Patterns Available:
patterns of steel grating
Stair treads features:
Material savings: most province of the material means withstand the
same load conditions, accordingly, can reduce the material of
supporting structure.
Reduce investment: saving materials, the provincial labor, the
provincial period, free cleaning and maintenance.
Construction simple: clamp bolt or welded fixed on the
pre-installed support, one to complete.
Save period: products without on-site re-processing, installation
is very quick.
Durable:hot-dip zinc corrosion protection in the factory ,
appearance, impact resistance and pressure capability.
Structure light: a small timber, the structure light, and easy
lifting.
Anti-dirt plot: not plot rain, snow and dust.
Reducing air resistance: Due to good ventilation, windy wind
resistance and reduce wind damage.
Design simple: no small beam, simple structure, designed simplify;
without grating design detail, can only indicate the model, our
factory can design exclusive board diagram on behalf of clients.
hot dipped galvanized steel grating
Stair treads quality requirements:
- Stair treads tolerance: treads length tolerance range [0 - (-3)
mm], treads width tolerance range [(-3mm)-3mm].
- Stair treads welding requirements: welded joints of the former
guard and wrapping with each load flat steel is not less than 3mm
weld angle.
Stair treads types:
- According to installation, stair treads can be divided into welding
fixing stair treads and bolted fixing stair treads. Welding fixing
stair treads is generally steel grating, and bolted fixing stair
treads need add 65 × 5mm flat steel to steel grating as side panel.
- Depending on whether there are non-slip can be divided into Nosing
(Striped Plate or bar steel) stair treads and non-Nosing stair
treads.
Mild Steel Grating Stair- STG001
Mild Steel Grating Stair- STG002
Mild Steel Grating Stair- STG003
Mild Steel Grating Stair- STG004
