China Galvanized Rain Water Drain Grating for Trench Cover, Find details about China Steel Grating, Steel Grid from Galvanized Rain Water Drain Grating for Trench Cover
Shaped steel grating
Stair treads
Production Process
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 | Bearing 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 | Crossing Bar | Steel flat bar: 20(H)x5(Thick),25x5,25x3,32x5,32x5,40x5,40x3,50x5,65x5,75x6,100x8,100x10mm,etc. Twist steel/round steel/square steel: 5mm, 6mm, 8mm, etc. |
4 | Cross Bar Pitch | 38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' ,etc. |
5 | Material Grade | ASTM A36, A1011, A569, Q235, S275JR, SS304, SS400, Mild steel & Low carbon steel, etc |
6 | Surface Treatment | Black, self color, hot dip galvanized, painted, spray coating |
7 | Grating Style | Plain / Smooth, Serrated /teeth, I bar, serrated I bar |
Quality standards:
Country | Standard for steel grid | Standard for steel material | Standard for hot dipped galvanization |
China | YB/T4001-1998 | GB700-88 | GB/T13912-92 |
USA | ANSI/NAAMM(MBG531-88) | ASTM(A36) | ASTM(123) |
UK | BS4592-1987 | BS4360(43A) | BS729 |
Australia | AS1657-1985 | AS3697 | AS1650 |
Bearing Bar type
Packed in bundle then fixed by steel belt as the general export package and we also could pack it according to customers' requirement.
Type A:Consists of plate with hook on the above,a plate with teeth at below and a M8 hexagon bolt.
Type B:Consists of plate with hook on the above (one of the two hook can be enclosed with steel grating),a plate with teeth at below and a M8 hexagon bolt.
Type C:Consists of plate with hook on the above and a M8 hexagon bolt which can welded support component.
1. Attractive appearance.
2.Optimum water draining: water leakage area reaches 83.3%, which is more than 3.two times than that of cast iron.
4.Hot-dip galvanized: good anti rust performance, maintenance free and replacement free.
5. Design of preventing theft.
6.With large span, the cost is lower than that of cast iron when under heavy load.
7.High strength.
8.Many specifications available.
9.OEM service available.
Flooring
Stair treads
Sun shades
Drain covers
Security screens
Manhole covers
Mezzanine flooring
Earth mats
Shelving
Stanchions (hand rails)
Fence