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Steel bar grating, known for its high strength and robust structure, is manufactured from carbon steel, aluminum, or stainless steel. Depending on the production method, steel grating can be categorized into four types: welded bar grating, press-locked grating, swage-locked grating, and riveted grating. Based on surface design, it is available in both smooth and serrated options.
With a wide range of styles and sizes, steel grating serves versatile applications in everyday life, including stair treads, walkways, platforms, flooring, trench covers, wheeled equipment, security screens, and heavy-duty constructions.
| Material | Carbon Steel Q235, Stainless Steel 304 / 316 |
| Type | Press locked / Flat bar / Serrated bar / I Bar |
| Bearing Bar Size | 20 x 3 to 100 x 9; "I-section" specifications: 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 (30, 40, 60mm recommended), America standard available |
| Cross Bar Pitch | 18.5 to 101.6mm (50, 100mm recommended), America standard available |
| Specification | Bearing flat steel: 25x3mm / Center space: 30mm, 40mm, 50mm, 100mm Horizontal pole: 10x2mm / 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 |
| 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 |
Persona di contatto: Mrs. Zhang
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