Heavy Duty Grating, Galvanized Heavy Duty Grating

Serrated flooring grating
Our company is specialized in manufacturing and exports all kinds of steel gratings with the best quality and competitive price and faster delivery time. The products are widely used in steel structure platforms, stair treads, sidewalks, drainages and well covers etc. We can design and manufacture 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; 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, 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 and 30, 40, 60mm are recommended,

America standard is available

4) Material:
Mild Steel (Low Carbon Steel) or Stainless Steel

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.

No Item Description
1 Bearing bar 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc
I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc
US standard: 1' ' x3/16' ', 1 1/4' ' x3/16' ', 1 1/2' ' x3/16' ', 1' ' x1/4' ', 1 1/4' ' x1/4' ', 1 1/2' ' x1/4' ', 1' ' x1/8' ', 1 1/4' ' x1/8' ', 1 1/2' ' x1/8' ' etc
2 Bear bar pitch 12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc
US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc.
3 Cross bar pitch 38.1, 40, 50, 60, 76, 80, 100, 101.6, 120mm, 2' ' & 4' ' etc
4 Material ASTM A36, A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc
5 Surface treatment Black/untreated/self-color, hot dipped galvanised, painted, spray coating
6 Standard China: YB/T 4001.1-2007
USA: ANSI/NAAMM(MBG531-88)
UK: BS4592-1987
Australia: AS1657-1985
7 Grating Bar Type Serrated, Plain or I bar surface