Steel Gratings
1,Type:Plain,Serrated,"I",Press-Locked
2,FB405/30/100,
3,Surface:Untreatment,Galvanized,Painted......
1.
1).Bearing bar pitches may be 12.5 to 15,20,30,40,60,80,90mm, of which 20,30mm and 40mm are recommended.
2).Cross bar pitch may be 24-200mm, of which 30,38,50,76mm and 100mm are recommended.
4).Materia specification: ASTM A36, BS4360, JIS G3101 & SS400.
2. Guide to selection of steel grid plated
LOAD BAR SIZE (mm) | MAINTENACE FLOORS NO PUBLIC USE UDL=2.5KPa | PEDESTRIAN TRAFFIC PUBLIC, RESIDENTIAL AND LIGHT USE UDL=3KPa | PEDESTRIAN TRAFFIC PUBLIC, OMMERCIAL AND CROWD USE UDL=4KPa | |||||||
Deflection=5mm | Deflection=5mm | Deflection=5mm |
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| Bearing bar pitch(mm) | Bearing bar pitch(mm) | Bearing bar pitch(mm) |
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| 30 | 40 | 60 | 30 | 40 | 60 | 30 | 40 | 60 |
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20X3 | 1190 | 1110 | 1000 | 1140 | 1060 | 960 | 1060 | 980 | 890 |
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25X3 | 1410 | 1310 | 1180 | 1350 | 1250 | 1130 | 1250 | 1170 | 1050 |
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32X3 | 1700 | 1580 | 1430 | 1620 | 1510 | 1360 | 1510 | 1400 | 1270 |
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40X3 | 2010 | 1870 | 1690 | 1920 | 1780 | 1610 | 1780 | 1660 | 1500 |
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20X5 | 1350 | 1260 | 1140 | 1290 | 1200 | 1090 | 1200 | 1120 | 1010 |
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25X5 | 1600 | 1490 | 1350 | 1530 | 1420 | 1290 | 1420 | 1320 | 1200 |
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32X5 | 1930 | 1790 | 1620 | 1840 | 1710 | 1550 | 1710 | 1590 | 1440 |
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40X5 | 2280 | 2120 | 1920 | 2180 | 2030 | 1830 | 2030 | 1890 | 1700 |
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