Galvanized Grating Walkway Grating For Stairs 1''x3/16'' Q235 Roff ety
Steel Walkway Grating Introduction
(1) Structure: Welding with flat steel and cross/round bars with certain distances.
(2) Features: High strength, light structure, high bearing.
(3) Surface: The hot dipped zinc coating gives the product excellent anti-corrosion.
Steel Walkway Grating Description
Steel grid gratings are press-welded by auto-welding machine, the original panle size usually around 1x6mtr. Then they will be cut to size according to the drawings. And we can make the specs as per American standard, European standard, Australian Webforge standard, etc.
For example:19-W-4 is the steel grating mesh size described as per America Standard. It means that the bearing bar pitch is 19/16 (1-3/16) inch which is approximately equal to 30mm, and the cross bar pitch is 4 inch which is approximately equals to 100mm. Therefore, 19w4 steel bar grating is same as steel gratings with mesh size 30x100mm. It is regular type in Chinese Market, and it can be electro-forged by machine directly.
Steel Walkway Grating Specification
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| Item | Description |
| Bearing bar | 20x5, 25x3, 25x4, 25x5, 30x3, 30x4, 30x5, 32x3, 32x5, 40x5, 50…75x8mm, 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 | 25, 30, 30.16, 32.5, 34.3, 40, 50, 60, 62, 65mm, etc. US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc. |
| Cross bar | 5x5, 6x6, 8x8mm (twisted bar or round bar) |
| Cross bar pitch | 40, 50, 60, 65,76,100,101.6,120,130mm or as customers’ requirement. |
| Flat bar type | Plain, Serrated (tooth-like), I bar (I section) |
| Materials | Low carbon steel (Q275/Q235/Q195,ASTM A36, A1011, A569, S275JR, SS304, SS400,UK: 43A),Stainless steel,aluminum alloy,etc |
| Galvanizing standard | CN: GB/T13912, US: ASTM (A123), UK: BS729 |
| Steel grating standards | A. China: YB/T4001-1998 |
| | B. USA: ANSI/NAAMM (MBG 531-88) |
| | C. UK: BS4592-1987 |
| | D. Australia: AS1657-1988 |
| | E. Japan: JJS |
| Surface treatment | Black,Electro galvanized(Cold dip galvanized),Hot dipped galvanized,Painted,Powder coated,or as customers’ requirements.And hot dipped galvanizing is generally recommended. |
Steel grid gratings Surface Treatment
1) Hot dip galvanized as per ASTM A123 or EN ISO 1461 or special requirement
2) Painted or Powder Coated
3) HDG plus painted/powder coated
Steel Walkway Grating Application
Steel walkway grating is widely used in petroleum chemical industry, power plant, water and sewage treatment plants, municipal engineering, environmental sanitation engineering fields of the platform, footpath, zhanqiao pier, ditch lid, manhole cover, ladders, fences, guardrail etc.
We are professional factory to design and manufacture standard steel grating and customize according to client's requirements.
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1''X3/16'' Q235 Roof ety Galvanized Walkway Grating Images
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