galvanized trench cover,galvanized drain steel grating,galvanized steel grating walkway

Trench Cover,
drain Steel Grating,
steel grating walkway ,
ISO9001-2008 & SGS Company, GRATING SPECIALIST, YOUR GRATING SOLUTION ************************************************************************************** Contact Information   Sales Director: David Huang   Email: david(a)lh-grating.com   TEL: 0086 137 57445098             0086 574 88073967   FAX: 0086 574 88073962   Skype: hzp811   ********************************************************************************** Standard Welded Steel Bar Grating, painted grating (factory) welded steel bar grating is the most popular of all grating types due to its strength, cost-efficient production and ease of installation, Universally used in most general industrial plants as well as commercial buildings,it has wide applications as walkways, platforms, safety barriers, drainage covers and ventilation grates.   standard welded steel bar grating is also ideal for use as mezzanine decking since it supports the same loads as comparable solid flooring, more than that, its cost saving openness maximizes the circulation of air, light, heat, water and sound, while promoting cleanliness, and , where insurance codes permit, additional sprinklers can often be eliminated, standard panels are available in widths of 2',3' or 4'.   standard welded steel bar grating is resistance welded to create a rugged, one-piece constructed panel, the bearing bars are automatically resistance welded at the contact point with the cross bars and, under a combination of high heat and pressure, are fused together to form a permanent joint, the cross bars provide a high degree of rigidity, yet retain a smooth flat surface for free and easy walking. Most Common Bearing Bar Spacing:    (19-W-4) 1-3/16" x 4", 30x100mm (19-W-2) 1-3/16" x 2", 30x50mm (15-W-4) 15/16" x 4" (15-W-2) 15/16" x 2" Most Common Panel Sizes: 24" x 20 FT 24" x 24 FT 36" x 20 FT 36" x 24 FT How To Order Grating: Mesh size (Bearing bars spacing & Cross Rods Spacing) Depth and Thickness of Bearing Bars Surface: Serrated or Smooth Dimensions of Area Span (Direction of Bearing Bars) Finish: Mill(Bare/Black) or Galvanized Material : Steel or Stainless steel Banding or No banding Ends.

No.	Item	Common Specifications
1	Bearing Bar	25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm 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
2	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.
3	Twisted Cross Bar Pitch	38.1, 40,50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc
4	Material Grade	ASTM A36, A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc
5	Surface Treatment	Black, self colour, hot dip galvanized, painted, spray coating
6	Flooring Grating Style	Plain / Smooth, Serrated /teeth, I bar, serrated I bar
7	Standard	USA: ANSI/NAAMM(MBG531-88),UK: BS4592-1987,  Australia: AS1657-1985, Japan:JIS ,China: YB/T 4001.1-2007,

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