Factory Direct grating - wanzhi--gra

Direct grating

Common flat steel: Material generally the material is Q235. Common type usually is 253 255 303 305 323,325,403,404,405 and other specifications.We use mainly flat steel slitting and cutting of steel sheet made of.
Flat profile: models and ordinary flat, like, the only difference is that one side of a rugged flat teeth marks.Mainly non-slip.
I-flat: flat on both sides of the middle thin thickness.
Twisted Steel: Also called twisted square steel.Generally 5x5 6x6 8x8 square steel, twisted steel.
Material Description:All materials are of SS400 steel as stipulated in CNS and JIS specifications and are hot-dip galvanized subject to the regulation ofCNS1247. The tensile strength is 41-52kg/mm2, elongation 26% and above, and yield degree 22kg/mm2

description:
This grating is produced by PLC press welding machine, the quality is the best and price is more competitive.They are very popular in all kinds of construction project in the world.

We design and manufacture many kinds of steel gratings, they are Plain Style Steel Grating, Serrated Style Steel Grating, I Bar Type Steel Grating and other gratings. They are widely used in steel structure platforms, stair treads, sidewalks, drainages and well covers etc. We also supply standard steel grating and in customized shapes per client's requirements.

1) Bearing Bar (Load Bar) Specifications (mm):
The specification of plain type and serrated type bearing bar is 20 x 3 to 100 x 10;

2) Bearing Bar Pitch (center to center):
12.5, 15, 25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm etc, also be according to client's requirement but 30, 40, 60mm are recommended.

America standard is available <1'' x 3/16'', 1 1/4'' x 3/16'', 1-1/2'' x 3/16'', 1'' x 1/4'', 1-1/4'' x 1/4'', 1 1/2'' x 1/4''(19-w-4) and so on.>

3) Cross Bar Pitch (center to center):
38, 50, 76, 100, 101.6mm etc, also be according to client's requirement and 50, 100mm are recommended, America standard is available.

4) Material:
Mild Steel (Low Carbon Steel ASTM A36 or Q235) ,Stainless Steel 304 or 316

5) Surface Treatment:
Untreated, Painting or Hot dip Galvanizing

6) Steel grating standards:
A) China: YB/T4001-1998
B) USA: ANSI/NAAMM (MBG531-88)
C) UK: BS4592-1987
D) Australia: AS1657-1985
E) Japan: JJS.