Product Introduction
Steel bar grating stair treads are high-performance load-bearing stair components processed from high-quality stainless steel. They are formed by cross-arranging and precision welding stainless steel flat steel and cross bars to form a stable grid structure, which ensures high strength and stable bearing performance. Made of integral stainless steel, the treads need no extra anti-corrosion coating in most scenarios; optional electro-galvanizing or spraying is available for special harsh environments to further enhance durability. They support customized production of different sizes, load levels and fixing methods (welding or bolting), meeting the needs of various industrial platforms, public facilities and outdoor stairs. The grid design brings good ventilation, light transmission and self-cleaning performance, reducing daily maintenance workload and ensuring safe walking in complex humid, corrosive and coastal environments.
Product Parameters
|
Item |
Specification |
|
Material |
stainless steel |
|
Flat steel size |
20×3, 25×3, 32×3, 32×5, 40×5mm |
|
Cross bar |
twisted square steel 5×5, 6×6mm |
|
Spacing |
flat steel spacing 30mm, 40mm; cross bar spacing 50mm, 100mm |
|
Surface treatment |
hot-dip galvanizing, electro-galvanizing, paint spraying |
|
Load capacity |
5-10kN/m² |
|
Length× width |
customized according to project requirements |
|
Fixing type |
welding fixed, bolt fixed |
Product Advantages
1. Lightweight and high-strength structure reduces the load on stair beams and foundations, lowering the overall steel consumption and construction investment of stair systems.
2. Modular design and simple welding/bolting installation shorten on-site construction period and reduce labor input costs.
3. Grid structure is not easy to accumulate dust and water, reducing cleaning and maintenance frequency and saving long-term operation and maintenance expenses.
4. Factory direct supply with large-scale production capacity ensures stable supply and short delivery time, avoiding project delays caused by material shortages.
Application Scenarios
1. Industrial fields: petrochemical plants, power plants, mines, water plants, warehouses for operation and inspection stairs.
2. Municipal engineering: subway entrances, fire exits, bridge walkways, park landscape stairs.
3. Port and ship: terminal platforms, ship decks, offshore operating platforms stairs.
4. Construction and civil use: commercial complexes, industrial plants, outdoor public building stairs.
FAQ
Q: How to choose between welded and bolted steel bar grating stair treads?
A: Welded type is suitable for fixed stairs without disassembly needs, such as factory internal stairs. It has lower cost and higher structural strength without adding side plates. Bolted type is suitable for scenarios requiring frequent maintenance or replacement, such as petrochemical plant inspection stairs. It can be disassembled and reused, reducing secondary investment in material replacement.
Q: How long is the service life of hot-dip galvanized steel bar grating stair treads?
A: In conventional atmospheric environment, the service life can reach 15-20 years. For example, in a power plant project in Hebei, the product has been used for 18 years without obvious rust or deformation, only needing simple cleaning without replacement, saving a lot of maintenance and renewal costs compared with ordinary steel plates.
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