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T4 Steel Grating Stair Treads - China

price: contact company for price

customized Steel Grating Stair Treads
customized Steel Grating Stair Treads Supplier
Our company 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, T2, T3, T4 Bearing bar at 30mm pitch 95 125 155 185 215 245 275
T1, T2 Bearing bars 40mm pitch 125 165 205 245 285
T3, T4 Bearing bars 40mm pitch 115 155 195 235 275
Fixing hole 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, medicie, steel and iron, food, municipality, real estate, manufacturing
SURFACE TREATMENT Three ways of surface treatment can be adopted: galvanizing, painting and untreated, of which hot- dip galvanizing is recommended.
Hot-dip galvanizing It is a form of galvanization. It is a process of coating steel grating with a thin zinc layer. By passing the metal through a molten bath of zinc, the average coating thickness is 70μm when steel bards range from 3mm to 5mm in thickness.
Painting It is also a good way to get surface protective film. Coating thickness depends on the customer's choice.


Company Contact:


  • Phone: 13256389268

  • Address: In the Qing Yang Industrial park District 31 Yunlong mountain Road, Fushan District Yantai City , Sh, yantai, shandong, China

  • Email: Email


Published date: August 21, 2019 -

  • Business Description:

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