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Standard steel grating, also known as Open Steel Grating , usually has a length ranging from 1000mm to 7500mm and a width ranging from 993 to 1000mm. Bearing Bars range from 20*3mm to 150*10mm. The surface is flat or serrated, and the surface treatment is galvanized, painted or untreated.
Technical Parameters
Common Specification Of Steel Grating | |
Material Standard | ASTM A36, A1011, A569, Q235, S275JR,Stainless steel 304, Mild steel & Low carbon steel, etc |
Bearing Bar(width*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. |
Cross Bar Type | Round Steel:φ6、φ10、φ12 etc. Twisted square steel:φ6、φ8、φ10 etc. Bearing Bar:10X2mm、20X2mm、30X3mm 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 |