Introduce of most-popular specifications steel grating :
1) outdoor steel grating stair tread :
Mild Steel (Low Carbon Steel) ( GB700,ASTM(A36),BS4360(43A) )
2) outdoor steel grating stair tread :
Hot dip Galvanizing ( GB/T13912,ASTM(A123),BS729 )
3) outdoor steel grating stair tread :
A) China: YB/T4001
B) USA: ANSI/NAAMM (MBG531)
C) UK: BS4592
D) Australia: AS1657
E) Japan: JJS
4> steel grating fences of outdoor steel grating stair tread there are three types: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.
Specification of outdoor steel grating stair tread
Steel grating Plane Flat Bar Specification:
Thickness:3mm,5mm are the common
Height:25mm,30mm,32mm,40mm,45mm,50mm,60mm.