galvanized plain walkway steel grating

galvanized plain walkway Steel Grating Features: 1>     Material: carbon steel or stainless steel grating 2>     Bearing bar specification:20 ×3mm to 90×7mm 3>     Bearing bar pitch:12.5,15,25,30,40,60mm etc. also be according to clients requirement and 30,40,60mm are recommended 4>     Cross bar pitch:50,100mm are recommended 5>     Maximum length of black panel:6,100 mm 6>     Surface treatment: untreated, paint or hot dip galvanized 7>     Steel grating standards: a)       China: YB/T4001-1998 b)        USA: ANSI/NAAMM (MBG531-88) c)        UK: BS4592-1987 d)        Australia: AS1657-1985   Guide to Selection of steel Grid Plate Light  &  Medium Duty                                                  Maximum recommended spans(mm)

Load bar size(mm)	Maintenance floors no public use UDL=2.5kPa			Pedestrain traffic public, residential and light use UDL=3kPa			Pedestrain traffic publicommercial and crowd use USD=4kPa
	Deflection=5mm			Deflection=5mm			Deflection=5mm
	Beflection bar pith(mm)			Beflection bar pith (mm)			Beflection bar pith (mm)
	30	40	60	30	40	60	30	40	60
20 x 3	1190	1110	1000	1140	1060	960	1060	980	890
25 x 3	1410	1310	1180	1350	1250	1130	1250	1170	1050
32 x 3	1700	1580	1430	1620	1510	1360	1510	1400	1270
40 x 3	2010	1870	1690	1920	1780	1610	1780	1660	1500
20 x 5	1350	1260	1140	1290	1200	1090	1200	1120	1010
25 x 5	1600	1490	1350	1530	1420	1290	1420	1320	1200
32 x 5	1930	1790	1620	1840	1710	1550	1710	1590	1440
40 x 5	2280	2120	1920	2180	2030	1830	2030	1890	1700

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Product Categories : Steel Grating