hot dipped galvanized steel bar Grating

1) Bearing Bar (Load Bar) Specifications (mm):

The specification of plain type and serrated type bearing bar is 20 x 3 to 100 x 9;the specification of I-section type is 25 x 5 x 3, 32 x 5 x 3, 38 x 5 x 3, 40 x 5 x 3, 50 x 5 x 3, 50 x 7 x 4, 55 x 7 x 4, 60 x 7 x 4, 65 x 7 x 4, 70 x 7 x 4, 75 x 7 x 4, etc.

2) Bearing Bar Pitch (center to center):

12.5 to 100 mm etc, also be according to client's requirement and 30, 40, 60mm are recommended, America standard is available.

3) Cross Bar Pitch (center to center):

from18.5 to 101.6mm etc, also be according to client's requirement and 50, 100mm are recommended, America standard is available.

4) Bar grating  Material:

Q235 Steel or stainless steel .

5) Bar grating Surface Treatment:

Untreated, Painting or Hot Dipped Galvanizing

6) Bar grating standards:

A) China: YB/T4001.1-2007

B) U.S.A.: ANSI/NAAMM (MBG531-88)

C) U.K.: BS4592-1987

D) Australia: AS1657-1985

E) Japan: JJS

7) Hot Dipped Galvanizing Standards:

A) China: YB/T 13912-2002

B) U.S.A.:ASTM A123