Hot DIP Galvanized Catwalk Steel Grating
Steel bar grating made of high strength and firm structure is manufactured from carbon steel, aluminum steel, or stainless steel. Available in various manufacturing methods including welded, press-locked, swage-locked, and riveted gratings, with surface options of smooth or serrated patterns.
Product Variants
- Plain Style Steel Grating
- Serrated Style Steel Grating
- I Bar Type Steel Grating
These steel gratings are widely used in steel structure platforms, stair treads, sidewalks, drainages, and well covers. We offer both standard designs and custom manufacturing to meet specific client requirements.
Technical Specifications
Bearing Bar Specifications
Plain & Serrated Types: 20 x 3 to 100 x 10 mm
I-Section Type: 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 mm
Bearing Bar Pitch
12.5, 15, 25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm (30, 40, 60mm recommended)
American Standard: 1" x 3/16", 1 1/4" x 3/16", 1-1/2" x 3/16", 1" x 1/4", 1-1/4" x 1/4", 1 1/2" x 1/4" (19-w-4)
Cross Bar Pitch
38.1, 40, 50, 60, 76, 80, 90, 100, 101.6, 102, 135 mm
Materials
Mild Steel (Low Carbon Steel) or Stainless Steel
Surface Treatments
Untreated, Painting, or Hot DIP Galvanizing
International Standards
- China: YB/T4001-1998
- USA: ANSI/NAAMM (MBG531-88)
- UK: BS4592-1987
- Australia: AS1657-1985
- Japan: JJS
Detailed Specifications
| Item |
Description |
| Bearing Bar |
25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10-100x10 mm
I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 mm
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, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80 mm
US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2
|
| Twisted Cross Bar Pitch |
38.1, 50, 60, 76, 80, 100, 101.6, 120 mm, 2" & 4" |
| Material Grade |
ASTM A36, A1011, A569, Q235, S275JR, SS304, SS400, Mild steel & Low carbon steel |
| Surface Treatment |
Black, self colour, hot dip galvanized, painted, spray coating |
| Grating Style |
Plain / Smooth, Serrated / Teeth, I bar, Serrated I bar |
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