Introduction to the main structural materials of container houses
Frame material
Steel
Columns/beams: Made of Q235B or Q345B hot-dip galvanized steel pipes/channel steel, they are of high strength and corrosion resistance. Common specifications include 80×80×3mm square tubes, 100×50×3mm rectangular tubes, etc.
Underframe/top frame: Welded with channel steel, I-beam or C-shaped steel, it bears the overall weight (the underframe needs to be reinforced to accommodate transportation and ground loads).
Features: The seismic resistance grade can reach 6 to 8 levels, and the wind resistance capacity is approximately 10 levels (depending on the structural design).
Wall materials
Sandwich panel
Outer layer: Color steel plate (galvanized steel plate + surface coating, thickness 0.3-0.6mm, color available) or aluminum-magnesium-manganese plate (more corrosion-resistant, suitable for high-humidity environments).
Core material
Polystyrene (EPS) : It has low cost and good thermal insulation, but its fire resistance is relatively poor (flame retardant grade B3).
Rock wool/glass wool: Fire resistance grade A, excellent heat insulation and sound insulation effects, often used in scenarios with high fire protection requirements (such as dormitories and offices).
Polyurethane (PU) : It has the best thermal insulation performance, with a flame retardant grade of B1. It is suitable for cold regions or projects with high energy consumption requirements.
Thickness: Commonly 50mm, 75mm, 100mm (corresponding to different insulation requirements).
Keel: Inside, C-shaped steel or U-shaped steel is used as wall supports, with a spacing of approximately 400-600mm, to enhance structural stability.
Floor material
Base layer: Galvanized steel plate or patterned steel plate (thickness 2-3mm), moisture-proof and wear-resistant.
Surface layer:
Laminate flooring (such as PVC floor leather, bamboo and wood fiberboard) : lightweight and easy to clean, suitable for indoor use.
Anti-slip steel plate: Used in industrial or high-load scenarios (such as warehouses, workshops).
Tiles/marble: High-end customized scenarios, enhancing aesthetic appeal.