ISO galvanized non slip stair treads(really factory) - RT-155

Non galvanized stair tread:, 1.Material:mild steel,stainless steel, 2.Cross bar pitch:30,40,60mm, 3.ISO9001:2000, 4.Type T1- - details see: https://www.buildingsupplieshub.com/iso-galvanized-non-slip-stair-treads-really-factory-10093394

Type: Stair Parts	Place of Origin: Hebei China (Mainland)	Brand Name: Run Tan	Model Number: RT-155
Stair Part Material: Iron

ISO galvanized non slip stair treads(really factory)

contact supplier for ISO galvanized non slip stair treads(really factory)

Non galvanized stair tread:

1)Material:There are mill steel black, hot dip Galvanizing and stainless steel grating.

2)Usage: platform, flooring walkway,steel structures, stair tread, well cover, trench cover, sump cover,compound gratings, storage shelves, ladder, fences and handrail so on for construction project, oil project, seaport, power plant, water plant, defense project, chemical factory and so on.

3)Types: Plain Style Steel Grating, Serrated Style Steel Grating and I Bar Type Steel Grating.

4) Surface Treatment:
Untreated, Painting ,Powder coated or Hot dip Galvanizing

5)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.

Notes: Stair tread may be of any types of grating,the size may be up to no standard specification
We recommended :

Bearing bar pitch is 30,40,60mm.

Cross bar pitch is 40,50,60,100mm

Width: 125,155,185,215,245,275,305mm

6) 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.

Pitch of Bearing bar	Cross-bar Pitch	Specification of bearing bar load(width×thickness)
Pitch of Bearing bar	Cross-bar Pitch	20×3	25×3	32×3	40×3	20×5	25×5
30	100	G203/30/100	G253/30/100	G323/30/100	G403/30/100	G205/30/100	G255/30/100
30	50	G203/30/50	G253/30/50	G323/30/50	G403/30/50	G205/30/50	G255/30/50
40	100	G203/40/100	G253/40/100	G323/40/100	G403/40/100	G205/40/100	G255/40/100
40	50	G203/40/50	G253/40/50	G323/40/50	G403/40/50	G205/40/50	G255/40/50
60	50		G253/60/50	G253/60/50	G403/60/50	G205/60/50	G255/60/50
Pitch of Bearing bar	Cross-bar Pitch	Specification of bearing bar load(width×thickness)
Pitch of Bearing bar	Cross-bar Pitch	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
30	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
40	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