Serrated When the gratings are used in particularly wet environments or in places where extra non-slip properties are required, serrated bars will be an advantage. The serrated process involves carving a pattern in the bars to be serrated. This could be in either the control or filler bars or in both control and filler bars and bearing bars, depending on whether the grating needs serrated in one or both directions. Serration is available in two patterns:
Serrated steel grating is the most popular of all grating types due to its strength, cost-efficient production and ease of installation. In addition to its high strength and light weight, this type of grating also has non-slip characteristics, no sharp edges and serrations are rolled on, to meet strict health and safety requirements. Hot rolled serrations help stop lacerations if someone falls on the grating.
| Material Standard |
ASTM A36, A1011, A569, Q235, S275JR, Stainless steel 304/316, Mild steel & Low carbon steel, etc |
| Bearing Bar (Width x Thickness) |
25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10…..100 x10mm 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 |
| 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. |
| Twisted Cross Bar Pitch |
38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc |
| Surface Treatment |
Untreated(black), Hot-dipped galvanized, Powder coated, Electroplate, Painting or as per customers' requirement. |
| Grating Style |
Plain / Smooth, Serrated / Teeth, I bar, Serrated I bar |
| Packing |
(1) Bandage and Paperboard: Generally applies to neat steel plate; (2) Screw Locking Method: Use 4 screw rods through the aperture of the steel grid, for high strength; (3) Steel Pallet: Traditional export packing. |
Enhanced Safety Features
Optional serrated bearing bars enhance skid resistance. Consider this surface for applications subject to the accumulation of liquids or lubricants or inclined grating installations. The excellent self-cleaning characteristics of plain surface grating make it suitable for the majority of applications.
In the presence of fluids or materials that could cause the top surface of the grating to become wet or slippery, specification of the optional serrated surface should be considered. When serrated grating is specified, the bearing bar depth must be 1/4" greater, to provide the equivalent strength of non-serrated gratings.