Overview
Open steel grating is composed of load-bearing bars (32mm height × 5mm thickness) and cross bars, welded to form a 100mm square mesh. The hot-dip galvanized coating provides uniform corrosion resistance without requiring post-installation painting. The open structure allows free drainage, air circulation, and light transmission while maintaining mechanical strength.
Technical Parameters
|
Parameter |
Value |
|
Standard |
YB/T 4001.1-2019 |
|
Material |
Q235 |
|
Surface Treatment |
Hot-dip galvanized |
|
Compressive Strength |
477 MPa |
|
Bearing Bar Size |
32 mm (height) × 5 mm (thickness) |
|
Mesh Opening |
100 mm (length) |
|
Design Service Life |
10 years |
Product Advantages
- Compressive strength of 477 MPa – based on Q235 steel, verified by standard material properties.
- 100mm square mesh opening – balanced between debris passage and foot-contact safety.
- 32mm × 5mm bearing bar – dimensional ratio optimized for span-to-load efficiency.
- Hot-dip galvanized coating – provides uniform zinc layer thickness; no field touch-up required.
- Open area ratio ≥ 80% – minimizes wind load and allows unrestricted drainage.
- 10-year design life – no replacement or major maintenance needed under rated load conditions.
Applications
Open steel grating is suitable for the following applications:
- Industrial flooring and walkways
- Platform access for petrochemical and power plants
- Drainage covers and trench covers (municipal works)
- Stair treads
- Environmental equipment access platforms
- Heavy-duty industrial mezzanines
FAQ
Q1: What is the load capacity of this open steel grating?
A1: Based on Q235 material (477 MPa compressive strength) and 32mm×5mm bearing bars, the load capacity varies with support span. Exact load data can be calculated per project-span conditions.
Q2: Is the 100mm mesh opening standard or can it be changed?
A2: 100mm is the standard opening. Smaller or larger openings can be produced as non-standard custom designs.
Q3: Does hot-dip galvanizing require re-coating during the 10-year service life?
A3: Under normal industrial conditions (non-highly acidic/alkaline, non-marine splash zones), no re-coating is needed within the 10-year design life.
Q4: What is your lead time for a typical order?
A4: With daily output ≥120 tons and annual capacity 35,000 tons, typical orders can be scheduled and delivered according to project requirements. Urgent orders can be accommodated due to in-house production control.
Q5: Do you support non-standard or custom designs?
A5: Yes. The in-house technical team of 10 engineers supports load verification, drawing optimization, and non-standard customization including special shapes, bar sizes, and mesh openings. Drawing output capacity is 30,000 m² per working day.
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