T4 Steel Grating Stair Treads,customized Steel Grating Stair Treads,customized Steel Grating Stair Treads Supplier
customized Steel Grating Stair Treads
customized Steel Grating Stair Treads Supplier
Our co***ny produces complete steel ladders with hand railings which are made of grating treads. According to whether the nosing to be used and the methods of mounting to stringers, grating treads are classified into four types, expressed as T1,T2,T3andT4. In view of economics it is advisable to use the recommended lengths and widths below
T1 Welded Fixing without Nosing
Type of Stair Treads Checkered plate nosing Structure Characteristics
T4 YES For anchoring with bolts, the two ends are closed with 65 x 5 mm flat bars with holes with checkered plate nosing
Recommended Stair Treads Width
T1,&©|160;T2,&©|160;T3,T4&©|160;Bearing&©|160;bar&©|160;at&©|160;30mm&©|160;pitch 95 125 155 185 215 245 275
T1,&©|160;T2&©|160;&©|160;Bearing bars 40mm pitch 125 165 205 245 285
T3, T4 Bearing&©|160;bars&©|160;40mm&©|160;pitch&©|160; 115 155 195 235 275
Fixing&©|160;hole&©|160;centers 45 75 100 150
Grating Size
Grade CN: Q235, Q345, USA: A36, UK: 43A
Standard CN: YB/T4001-1998, USA: ANSI/NAAMM, UK: BS4592-1987, AUS1657-1988, JJS
Certification CE, GOST, ISO9001, ISO14001, HSE
Bearing bar type Plain, Serrated (tooth-like), I bar (I section), Serrated-I
Bearing bar size 20X5, 25X3, 25X4, 25X5, 30X3, 30X4, 30X5, 32X3, 32X5, 40X5, 50X4.75X8,100X8mm,etc
Bearing bar pitch 20,25,30,32.5,34.3,40,50,60,62,65mm
Cross bar size 5X5, 6X6, 8X8mm (twisted bar)/5, 6, 8mm ( round bar)
Cross bar pitch 0, 50, 60, 65, 76, 100, 101.6, 120, 130mm, etc.
Panel size 3x20ft,3x24ft,3x30ft,5800x1000,6096x1000,6400x1000, as request
Surface treatment Untreated, hot dip galvanized, cold dip galvanized, painted, powder coated,pickling, electrolytic polishing, or as customers' requirement.
Galvanization Standard CN: GB/T13912, USA: ASTM (A123), UK: BS729
Color Silver/Black
Application petroleum and chemical, port, power, transportation, papermaking, medic |
Home
