high quality residential steel tread stairs

high quality residential steel tread stairs
Treads are produced by steel gratings with surface to be hot galvanized or electrogalvanized. They are widely used as industrial platforms, aisle floors, railway bridge sideways, parking lots floors, etc.
(Steel gratings consist of a series of flat bars cross jointed by welding at various intervals with cross bars to form some kind of steel products with square lattice among them.)
Grating Standard
Material Standard
HDG Standard
Handrail Standard
YB/T4001-2007
GB704-88
GB/T13912-92
4053.3-93
ANSI/NAAMM
ASTM (A36)
ASTM (A123)
BS4592-1995
BS4360 (43A)
BS729
BS6399/BS6180
AS1657-1992
AS3679
AS1650
1650-1985
Remarks: Other standards also can be complied with after discussing by the two parties.
:
Assembly method:
1. By welding: do not require side plate, economical and durable.
2. By bolting: require side plate to assemble the bolt, dismountable and recyclable.
Application Type:
1. Anti-slip treads: use serrated bearing bars to increase slip resistance property.
2. Stair treads: assembled by anti-slip strip and side plate.
3. Light duty type: suitable for using in normal loads.
4. Heavy duty type: suitable for using in heavy loads like docks and airports.
Surface Treatment:
1. HDG
2. Electrogalvanizing
3. Painting
4. Non-treatment
5. Other treatment as per customers’ requirement
Load Bar
Width
Width
Width
Width
Width
Width
Width
25 x 5mm
600
700
800
900
1000
1100
1200
32 x 5 mm
600
700
800
900
1000
1100
1200
40 x 5 mm
600
700
800
900
1000
1100
1200
Remarks: Other sizes also can be customized.
1. Easy for assembly and disassembly.
2. Good ventilation of air and light, heat dissipation.
3. Anti-slip & anti-explosion.
4. Easy for maintenance.
5. The aiti-slip treads possess unmatched slip resistance property, which are suitable for using in wet and slippery places like the offshore oil production platform.
6. The HDG surface provide strong antirust capacity with service life upto 30 years without any maintenance.
7. High drainage rate.
Mainly used as industrial platforms, stair treads, guard rails, passageway floors, bypath of railway bridges, platforms of high towers, drain covers, well covers, road guardrails, fencings for parking lots, offices, schools, factories, enterprises, stadiums, Garden Villas etc. They also can be used for external windows of residential buildings, balcony rails, guardrails for expressways and railways, etc.
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