China Factory Supply High Galvanized Steel Structure, Find details about China Steel Structure, Fabricated Steel Structure from Factory Supply High Galvanized Steel Structure
Specifications of steel gratings | ||
No | Item | Description |
1 | Bearing bar | 20x5, 25x3, 25x4, 25x5, 30x3, 30x4, 30x5, 32x3, 32x5, 40x5, 50^ 75x8mm, etc. |
2 | Bearing bar pitch | 25, 30, 30.16, 32.5, 34.3, 40, 50, 60, 62, 65mm, etc. |
3 | Cross bar | 5x5, 6x6, 8x8mm (twisted bar or round bar) |
4 | Cross bar pitch | 40, 50, 60, 65, 76, 100, 101.6, 120, 130mm or as customers' requirement. |
5 | Surface treatment | Untreated, Hot dip galvanized, Cold dip galvanized, Painted, Powder coated, or as customers' requirement. |
6 | Flat bar type | Plain, Serrated (tooth-like), I bar (I section) |
7 | Material standard | Low carbon steel (CN: Q235, US: A36, UK: 43A) |
8 | Galvanization standard | CN: GB/T13912, US: ASTM (A123), UK: BS729 |
9 | 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 |