Metal Serrated Drain Covers 20x5 Steel Walkway Grating
Hot Dipped Galvanized Steel Walkway Grating Metal Serrated Drain Covers
Supply Ability
Supply Ability:5000pcs Per Month
Packaging & Delivery
Packaging Details
1. Normally Packed In Pilling Up Ways With Two Pieces Of Square Wood On Both Upperand Bottom Sides.
2. Acccording To Customer'S Requirements.
Port Tianjin Port
(1) Place of Origin: Hebei, China (Mainland)
(2) Brand Name: YUANHAI
(3) Material: Steel
(4) Surface treatment: Hot dip galvanized, cold galvanized, spray paint, not processing
(5) Dimensions: 3'X20'
(6) Grating type: Serrated I bearing bar type
(7) Galvanization Standard: GB/T 13912, ISO 1461, JIS H8641,ASTM A123,,AS1650, ,BS 729
(8) Steel grating standards:
A) China: YB/T4001-1998
B) USA: ANSI/NAAMM (MBG531-88)
C) UK: BS4592-1987
D) Australia: AS1657-1985
E) Japan: JJS.
(9) Grating type: Bearing bar: Plain type, Plain I type, Serrated type, Serrated I type;
Cross bar: Round cross bar, Square twisted cross bar.
(10) Specifications of steel grating:
| 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. |
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