Heavy duty drain cover galvanized steel grating walkway steel grating
Serrated steel bar grating has better slip resistance and can also be widely used in steel structure platforms, sidewalks and drainages, compared with plain style steel grating. We can design and manufacture standard steel grating, with a width of up to 1 meter, and in customized shapes per client requirements.
Ningbo Jiulong Machinery Manufacturing Co., Ltd is the second largest steel grating manufacturer in China. We have 7 running lines with yearly capacity of 50, 000tons. Jiulong grating has exported to more than 30 countries. Choose Jiulong grating is your right decision!
Standard descriptions:
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
| Steel Grating |
| Bearing bar centers: |
15-30, 40, 60, 80, 90 mm etc. With 30, 40 mm recommended. |
| Cross bar centers: |
Any greater than 30mm is ok. With 50, 100mm recommended. |
| Marks: |
Example: G 325/30/100 WFG |
| Size: |
Customized |
Standard of Steel Grating
| |
Steel Grating Standard |
Steel Material Standard |
Hot Galvanizing Standard |
| China |
YB/T4001.1-2007(YB/T4001-1998) |
GB 700-88 |
GB/T13912-2002 |
| England |
BS4592-1: 1995 |
BS 4360: 1990 |
BS 729 |
| U. S. A |
ANSI/NAAMM(MBG531-2000) |
ASTM A36/A36M-96 |
ASTM A123/A123M-97A |
| Australia |
ASI657-1992 |
AS3679 |
AS1650 |
Audited Supplier 
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