Heavy Duty Galvanized Steel Welded Serrated Anti-slip Trench Cover Floor Bar Grating
Press-locked steel bar grating made by fixed size flat steel through slotted, pressure lock plug, finish, etc process. At the intersection point of flat steel and horizontal pole, press horizontal pole into loading flat steel, then fixed it. Sometimes the horizontal pole also used flat steel.
The grating is widely used for floor, catwalk, mezzanines/decking, stair tread, fencing; vault bin floor floor, ramp, dock/warehouse, all kinds of trench cover, window and machinery safe guards, wash rack, ventilation screen, storage rack, suspended ceiling, drainage pit cover and etc.
Material Specifications
Material: 1. Carbon Steel Q235 2. Stainless Steel 304 / 316
Type: Press locked / Flat bar / Serrated bar / I Bar
Bearing Bar Size: 20 x 3 to 100 x 9; the specification of "I-section" 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
Bearing Bar Pitch: 12.5 to 100 mm etc, 30, 40, 60mm are recommended, America standard is available
Cross Bar Pitch: from 18.5 to 101.6mm etc, 50, 100mm are recommended, America standard is available
Specification: Size of bearing flat steel: 25x3mm / the center space: 30mm, 40mm, 50mm, 100mm
Size of horizontal pole: 10x2mm / the center space: 50mm, 100mm
Surface Treatment: Untreated / Painting / Hot Dip Galvanizing
Steel Standard: China GB700-88 / America ASTM (A36) / Britain ASTM (A36)
HDG Standard: China GB/T13912-92 / America ASTM (A123) / Britain BS729
Quality Standard: China YB/T4001-1998 America ANSI/NAAMM (MBG531-88)
Britain BS4592-1987 Australia AS1657-1992
Bearing Bar Specifications
| No. |
Bearing Bar Pitch (mm) |
Standard Panel Width (Bearing Bar Thickness 5mm) |
Bearing Bar Number (PC) |
Remark |
| 1 | 12.5 | 1005 | 81 | Pitch between the two sides are smaller than normal bearing bar pitch. |
| 2 | 15 | 1010 | 68 | |
| 3 | 20 | 1010 | 51 | |
| 4 | 22 | 995 | 46 | |
| 5 | 23.85 | 1007 | 43 | |
| 6 | 25 | 1005 | 41 | |
| 7 | 30 | 995 | 34 | |
| 8 | 30.16 | 1000 | 34 | |
| 9 | 30.3 | 1005 | 34 | |
| 10 | 32.5 | 1013 | 32 | |
| 11 | 34.3 | 1000 | 30 | |
| 12 | 35 | 1020 | 30 | |
| 13 | 35.3 | 1029 | 30 | |
| 14 | 40 | 1005 | 26 | |
| 15 | 41 | 1030 | 26 | |
| 16 | 41.4 | 999 | 25 | |
| 17 | 50 | 1005 | 21 | |
| 18 | 60 | 965 | 17 | |
| 19 | 62 | 997 | 17 | |
