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.
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 also named bar grating.
The grating is with a square grid in the middle, composed by flat
bearing bar and cross roun bar. mainly used as gutter cover, Steel
structure platform walkway, steps of steel ladder, etc.
The steel grating is generally made of carbon steel, and the
surface is hot-dip galvanized, which can prevent oxidation. It can
also be made of stainless steel, aluminum steel.
According to the welding method, it can be divided into: machine
forge welding type and handmade manual welding type.
According to surface of the loaded flat steel, it can be divided
into: flat type, tooth type and "I" type.
According to its purpose, it can be divided into: trench cover,
platform walkway, stair treads.
According to its mateiral, it can be divided into: midl steel,
aluminum, stainless steel.
| Type | Width mm | Thick mm | KG/m | Clear Span mm |
| 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 |
| G505/30/50 | 50 | 5 | 80.9 | U | 2361 | 590 | 262 | 147 | 94 | 65 | 48 |
| D | 0.14 | 0.55 | 1.24 | 2.2 | 3.45 | 4.97 | 6.82 |
| G505/30/100 | 77.9 | C | 236 | 118 | 78 | 59 | 47 | 39 | 33 |
| D | 0.11 | 0.44 | 0.99 | 1.77 | 2.77 | 3.99 | 5.39 |
| G455/30/50 | 45 | 5 | 73.4 | U | 1912 | 478 | 212 | 119 | 76 | 53 | 39 |
| D | 0.15 | 0.61 | 1.38 | 2.45 | 3.83 | 5.56 | 7.62 |
| G455/30/100 | 70.4 | C | 191 | 95 | 63 | 47 | 38 | 31 | 27 |
| D | 0.12 | 0.49 | 1.09 | 1.94 | 3.07 | 4.35 | 6.06 |
| G355/30/50 | 35 | 5 | 58.4 | U | 1156 | 289 | 128 | 72 | 46 | 32 | 23 |
| D | 0.2 | 0.79 | 1.77 | 3.16 | 4.94 | 7.17 | 9.61 |
| G355/30/100 | 55.4 | C | 115 | 57 | 38 | 28 | 23 | 19 | 16 |
| D | 0.16 | 0.62 | 1.4 | 2.46 | 3.97 | 5.7 | 7.69 |
| G255/30/50 | 25 | 5 | 43.4 | U | 590 | 147 | 65 | 36 | 23 | 16 | 12 |
| D | 0.28 | 1.1 | 2.47 | 4.35 | 6.82 | 9.92 | 13.9 |
| G255/30/100 | 40.4 | C | 59 | 29 | 19 | 14 | 11 | 9 | 8 |
| D | 0.22 | 0.87 | 1.98 | 3.39 | 5.25 | 7.5 | 10.71 |
