steel stair treads/steel drain grates/serrated grating/weber stainless steel grates/metal grates for decks/baring
Steel grating is flat steel bar according to a certain distance and cross arranged and welded into the middle of a square lattice with an iron and steel products .
Bearing Bar (Load Bar) Specifications (mm):The specification(thickness of bearing bar)of plain type and serrated type is 20 x 3 to 100 x 10;
Cross bar pitch(mm) :38, 40, 50, 60, 76, 80, 100, 110, 120 etc.
| Common specification of Serrated 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. |
| 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) LCL(less than one container load): packed with plastic film then on the pallets 2) FCL(full container load): nude packing 3) Other special package :according to customers' requirements. |
| Payment Term | T/T,L/C, Paypal, Western Union, MoneyGram, Credit Card ,D/A,D/P, Trade assurance |
| Remarks: Other sizes also can be customized according to customers’ requirement. |
1)The specification of plain type and serrated type bearing bar is 20 x 3 to 100 x 9;the specification of I-section type is 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,
2) Bearing Bar Pitch (center to center):
12.5 to 100 mm etc, also be according to client's requirement and 30, 40, 60mm are recommended, America standard is available.
3) Cross Bar Pitch (center to center):
from18.5 to 101.6mm etc, also be according to client's requirement and 50, 100mm are recommended, America standard is available.
Steel Drain Grates Standard
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| | Steel Grating Standard | Steel Standard | Galvanizing Standard |
| China Standard | YB/T 4001.1-2007 | GB700-88 | GB/T13912-2002 |
| USA Standard | ANSI/NAAMM(MBG531) | ASTM (A36) | ASTM (A123) |
| U.K. Standard | BS4592 | BS4360(43A) | BS729 |
| Australia Standard | AS1657 | AS3679 | AS1650 |
| Deutsche Standard | DIN24537 | DIN17100-80 | DIN50976 |
steel stair treads features
| (1)Attractive appearance:Simple outline.silver colour,and modern. (2)Optimum water draining:Water leakage area reaches 83.3%,which is more than two times larger than that of cast iron. (3)Hot-dip galvanizing:Good antirust performance,maintenance free and replacement free. (4)Design of preventing theft:The cover is connected with the frame by gemel,which ensures protection against theft,safety,and convenient opening. (5)Saving investment:With large span,the cost is lower than that of cast iron when under heavy load.And the replacement expenses in case of theft and crushing will be saved. 
application of weber stainless steel grates The products are widely used in steel structure platforms, stair treads, sidewalks, drainages and well covers etc. We can design and manufacture standard galvanized steel grid and in customer's requirement.
package of serrated grating | galvanized steel grid is normally packed in the way with two pieces of square wood on both upper and bottom sides.there are four or six pieces M10 long bolt penetrating the grids and screwing them together.it is suitable for loading and unloading by forklift.But we also packing our products on costumer’s requirement. | |
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steel stair treads/steel drain grates/serrated grating/weber stainless steel grates/metal grates for decks/baring Images
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