How to choose steel suitable for warehouse and factory industrial buildings?

In the field of industrial construction, steel has become a core material due to its high strength, durability and flexibility. From warehouses to factories, the selection of steel structures directly affects the safety, cost and service life of the building.

Common steel types and characteristics of industrial buildings

1. Q235 ordinary carbon structural steel

Features: moderate strength (yield strength 235MPa), excellent weldability, and low processing cost.

Application scenarios: suitable for light steel structures, small warehouses or factories with low load requirements.

Comparative advantages: Compared with high-grade steel, Q235 is inexpensive and suitable for projects with limited budgets.

2. Q345 low-alloy high-strength steel

Features: yield strength of 345MPa, better corrosion resistance and toughness, and light weight.

Application scenarios: large-span factories, heavy equipment support structures and coastal high-humidity environment buildings.

Comparative advantages: Compared with Q235, Q345 can reduce the amount of steel by 20%-30%, and the long-term maintenance cost is lower.

3. Weathering steel (Corten steel)

Features: Contains alloy elements such as copper and phosphorus, and naturally forms a dense oxide layer on the surface, which has strong resistance to atmospheric corrosion.

Application scenarios: Corrosive environments such as open-air warehouses and chemical plants, reducing the need for painting.Comparative advantages: Compared with ordinary steel, weathering steel can save more than 50% of anti-corrosion maintenance costs.

4. Q390 and above high-strength steel

Features: Yield strength ≥390MPa, suitable for ultra-heavy load structures.

Application scenarios: High-rise industrial plants, bridges or special equipment foundations.

Comparative advantages: Lighter and stronger than Q345 steel, but higher welding process requirements.

Performance comparison and selection suggestions of different steels

Selection suggestions:

Budget limited: give priority to Q235, balancing cost and performance.

Large span or heavy load: Q345 is a cost-effective choice, reducing the amount of steel used.

Harsh environment: Weathering steel can significantly reduce maintenance costs and is more economical in the long run.

Special needs: Q390 + high-strength steel is suitable for extreme load scenarios, but the construction difficulty needs to be evaluated.

Why is steel structure the first choice for industrial buildings?

High construction efficiency: prefabricated components can be installed quickly, shortening the construction period by 30%-50%.

Spatial flexibility: The large span design meets the needs of mechanized warehouse operations.

Environmental protection: Steel can be 100% recycled, in line with the trend of green buildings.

Safety: Excellent seismic performance ensures the safety of factory personnel and equipment.

How to optimize steel selection?

Load calculation: Select steel with matching strength according to the building function and equipment weight.

Environmental assessment: Weathering steel or galvanizing is preferred in coastal or high humidity areas.

Long-term maintenance: Balance the initial cost with the later anti-corrosion and maintenance costs.

Compliance with regulations: Refer to the "Steel Structure Design Standard" (GB 50017) to ensure compliance.

Conclusion

The selection of steel for industrial buildings requires comprehensive strength, cost, environmental adaptability and other factors. Q235 and Q345 are the most widely used basic steels, while weathering steel and high-strength steel provide solutions for special needs. Through scientific selection and reasonable design, steel structures can help industrial buildings achieve a perfect balance of safety, economy and sustainable development.

Consult a professional team now to get a customized steel structure solution to improve the performance of your industrial buildings!