Hebei Shenyi Metal Products Co., Ltd. is one of the leading manufacturers and suppliers of tread steel grating in China. If you're going to wholesale bulk tread steel grating made in China, welcome to get free sample from our factory. All customized metal products are with high quality and competitive price.
Fundamental Materials and Structure
Load-bearing flat steel: The primary load-bearing element, with dimensions of 25/30/40 mm high and 3–5 mm thick; it comes in flat, I-beam, and serrated (anti-slip) varieties.
Crossbars: Usually used to secure flat steel and provide stability, they are 5x5 twisted square steel pieces spaced 50/100 mm apart.
Supplies:
Carbon steel Q235B is hot-dip galvanised (60–85μm), has a 15–20 year outdoor lifetime, and is quite affordable.
Stainless steel 304/316L: Excellent resistance to corrosion, ideal for use in food, chemical, and coastal applications.
Aluminium alloy: Used in some situations, it is lightweight.
Common Types
Welded Steel Grating
Crossbars and flat steel bars are resistance welded together. Strong, inexpensive, and widely utilised.
01
Press-locked Steel Grating
Crossbars are pushed in and interlocked with perforated flat steel bars. Flat surface, no weld spots, appropriate for high-precision and irregular applications.
02
Serrated Steel Grating
To prevent slippage, flat steel bars are serrated. used for wet/oily platforms and stair treads.
03
Heavy-duty Steel Grating
Denser spacing and thicker (6–12 mm) flat steel bars. For ports and driveways, the load capacity is ≥10kN/㎡.
04
Stair Treads
GB4053.2-compliant stair treads with anti-slip front guard plates.
05
Models and Specifications (Marking Example)
Model Format: Crossbar Spacing, Flat Steel Height × Thickness, and Flat Steel Spacing For instance, G253/30/100.
G stands for steel grating; 25 for flat steel height (25 mm); 3 for thickness (3 mm); 30 for flat steel spacing (30 mm); and 100 for crossbar spacing (100 mm).
Typical Specifications:
253/30/100: Lightweight platforms, walkways, about 20 kg/㎡.
255/30/100: Stair treads, approximately 32 kg/㎡.
305/30/100: Platforms, Carriages, approximately 38 kg/㎡.
Product Measurements: Adaptable to the needs of the client.
Useful Situations
Industrial platforms include sewage treatment facilities, power plants, chemical plants, and walkways for equipment maintenance.
Municipal drainage coverings
Load-bearing, anti-theft covers for drainage ditches, sewers, and cable trenches.
01
Stair Treads
Steel steps at ports and docks, industrial facilities, and municipal engineering projects.
02
Ports & Docks
Heavy equipment platforms, walkways, and trellises.
03
Architectural ornamentation
Parking lot grilles, fences, curtain walls, and ceilings.
04
Particular Situations
Offshore platforms, aquaculture ground nets, and stainless steel food and pharmaceutical factories.
05
Selection Factors
- The load-bearing capability is ≥10 kN/m² for automotive traffic and 1–5 kN/m² for pedestrian traffic.
- Environmental adaptability: 304/316L stainless steel grating for robust corrosion resistance; hot-dip galvanised steel grating for broad outdoor application.
- Serrated steel grating is necessary for anti-slip conditions in wet or oil-prone areas.
- Standard mesh spacing is 30 x 100 mm; child safety is ≤40 x 40 mm.
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