In outdoor embossed aluminum applications such as building roofs and exterior wall cladding, the structural strength and weather resistance of the sheet material directly determine the project's performance throughout its entire lifecycle. Ordinary pure embossed aluminum sheets lack sufficient rigidity, while high-alloy embossed sheets suffer from poor formability and high cost. 3105 embossed aluminum coils, leveraging the performance gradient of aluminum-manganese-magnesium alloys, achieve a precise balance between strength, corrosion resistance, formability, and cost, making them a mainstream upgrade choice for medium-to-high load-bearing outdoor applications. Based on years of experience in aluminum material matching, the 3105 stucco aluminum coil generally outperforms ordinary 3000 series embossed aluminum sheets of the same thickness in scenarios such as large-span roofs and coastal building cladding.
3105 belongs to the aluminum-manganese-magnesium rust-resistant alloy family, achieving solid solution strengthening by adding an appropriate amount of magnesium to a manganese-based rust-resistant base. In its commonly used H14 state, the tensile strength is consistently between 150–190 MPa, and the yield strength is ≥125 MPa, representing a strength increase of approximately 10% compared to 3003 alloy in the same state, while maintaining excellent plasticity and cold bending performance. The material exhibits excellent atmospheric corrosion resistance, with a neutral salt spray test lifespan exceeding 800 hours, making it resistant to pitting and oxidation peeling during long-term outdoor use. For embossing, the 3105 aluminum alloy boasts a uniform grain structure and moderate deformation resistance, resulting in clear, well-defined patterns with sufficient stiffness, minimizing the risk of pattern collapse and edge cracking, thus balancing three-dimensional texture with structural strength.
BCM 3105 embossed aluminum coils cover three major pattern systems: orange peel, lentil, and stucco, catering to diverse functional and decorative needs. The standard embossing depth is controlled between 0.18–0.25 mm, achieved through a single-stage precision engraving roller process, resulting in uniform pattern distribution, natural texture, and no inconsistencies in depth or misalignment. Following the embossing process, continuous low-temperature leveling and stress-relief treatment are applied to fully release residual stress from rolling and embossing. The flatness of the sheet surface is consistently ≤2mm/m, allowing for natural flat laying after uncoiling. When laying large sheets, the splicing gaps are uniform and straight. The product's standard thickness covers 0.4mm–1.2mm, and the width can be customized from 50mm–1500mm. Thickness tolerance is controlled within ±0.02mm, and the cutting accuracy deviation is ≤±0.5mm. It is compatible with various automated roll forming production lines.
From an engineering application perspective, the core advantages of 3105 embossed aluminum coils lie in two dimensions: upgraded strength and functional adaptability. Compared to 1060 embossed aluminum sheets, the 3105 embossed aluminum coil offers significantly improved structural rigidity. At the same thickness, its resistance to dents and wind uplift is improved by more than 20%. When used in large-span metal roofing, it can reduce purlin density and lower overall project costs. The diffuse reflection effect created by the embossed texture avoids glare pollution from strong light, while simultaneously building a static air layer between the panel and the insulation layer, improving thermal insulation performance by 10%–15% compared to smooth panels. The material is compatible with various surface coatings such as polyester, high-weather-resistant polyester, and fluorocarbon, achieving a coating adhesion rating of 0. Its T-bending performance is ≤2T, and there is no paint peeling or flaking after bending. Various colors and surface effects can be customized according to architectural design requirements.
3105 stucco embossed aluminum coils are widely used in industrial plant roof cladding, public building exterior wall panels, sunshade louvers, and ventilation duct insulation, especially suitable for outdoor projects in medium-to-high load-bearing and moderately corrosive environments. Based on practical project experience, 0.5–0.8mm thick 3105 H14 embossed aluminum sheets are sufficient for conventional inland industrial roofs; in coastal high-salt-spray areas, pre-coated fluorocarbon coatings are recommended to further enhance weather resistance; for exterior wall panel applications requiring higher flatness and forming precision, the H24 low-stress temper can be selected to reduce the risk of deformation after installation.
3105 embossed aluminum coil fills the selection gap between ordinary rust-resistant aluminum and high-strength alloys with its balanced overall performance. BCM Aluminum provides reliable medium-strength weather-resistant embossed aluminum product solutions for various building and industrial projects worldwide through stable alloy control and meticulous embossing processes.
