In the wave of North American manufacturing's transformation towards lightweight, corrosion-resistant, and high-strength materials, 5182 aluminum coil, with its unique alloy formulation and processing technology, has become a key material in the automotive, marine, packaging, and energy sectors. As a Canadian aluminum coil manufacturer, we BCM Alu have been deeply involved in the research and development and production of 5182 alloy for over a decade. We are committed to providing our customers with high-quality 5182 aluminum coil to meet their needs in various fields.
5182 aluminum coil belongs to the Al-Mg-Si series of high-magnesium alloys. Its chemical composition strictly adheres to the ASTM B209 standard: magnesium content 4.0%-5.0%, manganese 0.20%-0.50%, silicon ≤0.35%, iron ≤0.40%, and copper ≤0.15%. This composition design endows the product with both strength and toughness, with a tensile strength of 250-350 MPa, a yield strength ≥80 MPa, and an elongation ≥15%. It maintains stable deformation capacity even in extreme environments ranging from -40℃ to 80℃.
Alloy composition takes three core advantages of aluminum coil 5182 materials:
High corrosion resistance: Magnesium forms a dense oxide film, showing no corrosion after 240 hours of salt spray testing.
Excellent weldability: AA-level arc welding performance rating, weld strength reaches 85% of the base material.
Cold working toughness: Elongation ≥12%, capable of withstanding complex stamping.
BCM break through the thickness limitations of traditional aluminum coils, offering continuous rolling capabilities from 0.15mm to 10mm, and ultra-wide custom widths ranging from 100mm to 2650mm. For example, the 5182-O ultra-wide aluminum coil (6mm thickness × 2600mm width) developed for a well-known North American tanker truck manufacturer, through the coordinated control of a six-roll cold rolling mill and an online thickness detection system, compresses the thickness tolerance to ±0.005mm, ensuring a cupping value ≥8mm during end-cap stamping, avoiding edge cracking problems common in traditional materials. Targeting the aluminum can pull tab market, our 0.203mm ultra-thin aluminum coil, through micro-alloying technology, enhances strength to 320MPa while maintaining a surface finish Ra≤0.8μm, meeting the process requirements of high-speed stamping (400-600 pieces/minute).
Advantages of the 5182 aluminum coil supplied by BCM Alu including:
Breakthrough in corrosion resistance:
In the ASTM B117 salt spray test, the 5182 aluminum coil, after chromium-free passivation treatment, showed no red rust formation after 2000 hours, a 40% improvement over traditional 5052 alloy, significantly reducing maintenance costs in marine environments.
Optimized welding performance:
When using TIG welding, the weld strength can reach 92% of the base material, with heat-affected zone hardness fluctuation ≤10HV, meeting the stringent welding standards for ship decks, pressure vessels, and other structures.
Reduced processing energy consumption:
By optimizing the cold work hardening index (n-value) to 0.28, the deformation resistance during deep drawing is reduced by 18%, helping customers reduce the tonnage requirements of stamping presses. A single production line can save approximately 150,000 kWh of electricity annually.
Application scenarios of the 5182 aluminum coil product covers almost all of the industrial area:
Automotive lightweighting:
5182-H32 aluminum coils for vehicle body structural components are bonded to high-strength steel via friction stir welding (FSW) to form an Al3Fe intermetallic compound layer, achieving a weld strength of 280 MPa, a 35% improvement over traditional MIG welding.
Packaging industry innovation:
One in every three pull tabs on beverage cans worldwide uses 5182 aluminum coils. Through cupping value control and surface electroplating processes, the pull tab opening force is stabilized at 3-5 kgf, reducing the customer complaint rate to below 0.02%.
Energy equipment upgrade:
The 5083/5182 composite aluminum coil developed for the Canadian LNG project maintains its toughness even at -162°C. Through an explosive bonding process, seamless connections between dissimilar metals are achieved, resulting in a 12-ton weight reduction per tank and an 18% increase in transportation efficiency.
In today's rapidly evolving materials science landscape, the evolution of 5182 aluminum coil continues. Choosing BCM 5182 aluminum coil means choosing a material solution that can withstand the test of time and the environment.
