Service: | OEM ODM Customised | Function: | Water Draining |
---|---|---|---|
Type: | Serrated, Plain, I Bar Grating | Surface: | Hot Galvanized |
Color: | Silver | Material: | Q235 Carbon Steel |
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Steel Grating/ manhole cover and frame series
Material: Low carbon steel, stainless steel
Surface treatment: Hot dipped galvanized, painting,black
(1) Structure: Welding with flat steel and cross/round bars with certain distances.
(2) Features: High strength, light structure, high bearing.
(3) Surface: The hot dipped zinc coating gives the product excellent anti-corrosion
bearing bar size | 25/3mm , 25mm/4mm , 25mm/5mm , 30/3mm , 30/5mm,32/3mm,32/5mm ,40/3mm............ 75/5mm,100/10mm |
opening | 30mm x 32mm , 30mm x 60mm, 30mm x 100mm , 38mm x 100mm , 40mm x 100mm , 50mm x 50mm ,50mm x 100mm etc |
surface treatment | black , hot dip galvanized |
type | plain bar, serrated bar , I shape bar |
Hot dip galvanized steel grating tolerance
The allowed deviation of length is +0/-5mm, while the allowed deviation of width is +/-5 mm. The non-perpendicularity of bearing bar is allowed no more than 10% of width of bearing bar.
Cross bar surface should not surpass bearing bar surface 1mm, beginning & end of cross bar should not surpass the end surfaces of two sides of grating 2mm.
Applications
Steel grating is widely used for work platforms. Catwalks, transportation
servicing areas and vehicle steps.
Series
specification:
25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, | |
Bearing Bar Size | |
75x6, 75x10---100x10mm etc. | |
I Bar Shape | 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'' | |
Bearing Bar Pitch | 12.5, 15, 20, 23.85, 25, 30, 30.16, 31, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm |
US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc. | |
Cross Bar Size and Pitch | Twisted bars 5x5, 6x6, 8x8mm; Round bars Dia.6, 7, 8, 9, 10, 12mm and so on. |
38.1, 40, 50, 60, 76, 80, 100, 101.6, 120, 135mm, 2'' & 4'' etc. | |
Material Grade | ASTM A36, A1011, A569, Q235, S275JR, SS400, Mild steel & Low carbon steel, etc. |
Stainless steel SS304, SS316.s335jr, aluminum | |
Surface Treatment | Black, self color, hot dip galvanized, painted, powder coating, electrolytic polishing. |
Grating Style | Plain / Smooth, Serrated /teeth, I bar, serrated I bar. |
Panel Size | |
3x20ft,3x24ft,3x30ft,5800x1000, 6000x1000, 6096x1000,6400x1000, as request |