serrated steel grating

No

Item

Description

1

Bearing bar

25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm

2

Bear bar pitch

12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 34.3, 35, 40,41,60mm. US standard: 1"x3/16", 1 1/4"x3/16", 1 1/2"x3/16",  1"x 1/4", 1 1/4"x 1/4", 1 1/2"x 1/4" etc.

3

Cross bar pitch

38,50,76,100,101.6mm

4

Material

Q235,A36,SS304

5

Surface treatment

Black, hot dipped galvanising, paint

6

Standard

China: YB/T 4001.1-2007

USA: ANSI/NAAMM(MBG531-88)

UK: BS4592-1987

Australia: AS1657-1985