| Material | Mild steel / carbon steel / stainless steel+abrasive plate: Q235B, ASTM A36, S275JR etc. |
| Specification | All the stair treads can be customized Bearing bar: from 25*3mm to 100*8mm Bearing bar pitch: 12.5, 22, 25.4, 30, 34, 40, 41, 60mm etc. Cross bar: 5mm,6mm,8mm, round or twisted bar Cross bar pitch: 33, 38, 50, 76, 100mm |
| Galvanized standard | ISO 1461; ASTM A123; GB/T13912:2002 |
| Package | seaworthy package |
| MOQ | 50 pieces |
All gratings as per your requirements can be customized.
1. Brief Introduction of press locked steel gratings
With Press-Locked Grating the cross bars and bearing bars are notched and pressed together through a high pressure manufacturing process. The result is a bi-direction flush surface that assures a firm, rigid connection and makes it aesthetically appealing for architectural applications. It is available from stock in twp bearing bars heights, in plain or corrosion-resistant galvanized steel, or aluminum. A variety of other bar heights, bar spacings and materials is available by special order.
2. Common Steel Grating Specification
1) Bearing bar size (mm): 25 x 3; 25 x 5;30 x 3; 30 x 5;32 x 3; 32 x 5; 35 x 3;35 x 5.....
2) Bearing bar pitch(mm): 20;30;34;40;50;60.....
3) Cross bar pitch(mm): 50;100;38.....
3. Surface Treatment
4. Grating Standard
1) China: YB/T4001-1998
2) USA: ANSI/NAAMM (MBG531-88)
3) UK: BS4592-1987
4) Australia: AS1657-1985
5) Japan: JJS
5.Application
