In the construction sites of various projects, you can often see rows of mobile houses made from color steel plates. These structures are also commonly found in industrial buildings such as factories, airports, and warehouses. With China's accelerated urbanization, the wide application of color steel houses and mobile homes has created long-term growth opportunities for the color steel plate market. According to recent market reports, sales of color steel plates have seen a significant increase over the past few years.
Industry experts suggest that in the coming years, China’s urbanization will continue to speed up, with numerous infrastructure projects—such as roads, public facilities, and other key developments—being launched intensively. This will drive strong demand for color steel plates, making it crucial for steel companies to seize these emerging opportunities.
**Urbanization Drives Demand for Color Steel Movable Houses**
In recent years, the concepts of environmental protection, energy efficiency, and fast, efficient construction have gained popularity. A key factor in building energy efficiency is the use of new energy-saving materials. According to national statistics, China currently has over 42 billion square meters of urban and rural buildings, but only about 5% meet energy-efficient standards. Even in newly built structures, more than 90% are still high-energy buildings. This creates a vast market for color steel composite panels and movable houses.
Mobile homes first appeared in China in the 1960s, primarily used for temporary housing. As products evolved, they began to be used in offices, booths, and warehouses. Since the new century, with the market maturing, temporary buildings have gradually become standardized, integrated, and mass-produced, moving from traditional cement-based units to color steel plate-based ones.
The main steel components used in color steel movable houses include color steel plates, angle irons, channel sections, T-shaped steel, and more. For example, roofing tiles use color steel plate girders, surrounded by sealing plates, roof frames, purlins, and girders assembled using angle iron and some channel sections. Small beams are made of T-shaped angle iron, while corner and middle columns use channel sections and steel columns.
According to industry insiders, color steel plates used in mobile homes are a new type of structural material that combines load-bearing, insulation, waterproofing, and aesthetics. They offer multiple advantages: first, they come in diverse specifications and bright colors, eliminating the need for surface decoration. Second, they are easy to install, reducing construction costs and allowing repeated disassembly and reinstallation, offering significant overall benefits. Third, they have good fire resistance, with the core material being B1-grade flame retardant, with an oxygen index of at least 26. They do not melt when burned, produce no black smoke, and do not drip or decompose at high temperatures. Fourth, they can be used across a wide temperature range—from -70°C to 120°C, even up to 200°C instantaneously, making them ideal for cold storage applications. Fifth, they have low thermal conductivity (λ ≤ 0.041 W/m·K), providing excellent insulation. Lastly, they are odorless, non-toxic, and environmentally friendly, meeting national environmental standards.
**China's Color Steel Plate Market Faces Pressure from Foreign Products**
Color steel plates are produced by cold-rolled steel sheets that are degreased, phosphated, and chromated, then hot-dipped galvanized under nitrogen protection. A chemical conversion film is applied for primer adhesion, followed by an epoxy primer and a chemically resistant colored finish. Today, color steel plates come in various types, including single-layer, sandwich, polystyrene, and rock wool versions.
With increasing usage, user demands for color steel plates have also risen. Industry insiders note that there are still issues with domestic single-layer color steel plates, affecting user choices. Some coatings are of poor quality, unstandardized, and subpar, leading to wasted resources. Others import expensive foreign coatings, which reduces competitiveness and causes price confusion in the domestic market. Therefore, domestic manufacturers must overcome production bottlenecks.
Recently, rock wool color steel plates have gained more trust from users. The production process allows for full integration of rock wool and steel plates using automated equipment, replacing on-site assembly. Rock wool color steel plates are widely used in construction, especially in worker dormitories, due to their excellent thermal, sound, and fire insulation properties, making buildings safer and more efficient.
This year and in the next few years, driven by economic development, demand for color steel plates in China will continue to grow. However, competition will intensify. With over 400 color coating lines globally and an annual production capacity of around 14 million tons, the global supply-demand imbalance is growing. Foreign manufacturers are entering the Chinese market, targeting small and medium-sized projects. In this context, Chinese color steel companies must invest more in R&D, improve product quality and value, leverage their factory-based, standardized, and assembly advantages, and seize the opportunity to further develop the industry.
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