AZ91D is a representative cast Mg-Al-Zn magnesium alloy, available in sheet and rod forms, widely recognized for its excellent die-casting performance, balanced mechanical properties, and high cost-effectiveness. As a cost-efficient lightweight material, it is widely used in mass production scenarios such as automotive, consumer electronics, and general machinery, becoming a preferred choice for enterprises pursuing cost control and weight reduction simultaneously.
Different from wrought AZ31B magnesium alloy, AZ91D is a non-heat-treatable cast alloy, with a core chemical composition of 8.5–9.5% aluminum, 0.45–0.90% zinc, 0.17–0.4% manganese, and magnesium as the remainder. With a density of 1.82g/cm³, it maintains the lightweight advantage of magnesium alloys, while its higher aluminum content enhances hardness and corrosion resistance compared to pure magnesium, making it more adaptable to general industrial environments.
AZ91D magnesium sheet and rod share core advantages but have distinct characteristics and application scenarios. The sheet features excellent casting and forming performance, with a flat surface and uniform structure, suitable for manufacturing thin-walled, large-area components. In as-cast state, it has a tensile strength of 230–250MPa, yield strength of 160MPa, and elongation of 3–7%, meeting the needs of non-high-load structural parts.
AZ91D magnesium rod, on the other hand, boasts excellent machinability and dimensional stability, easy to process into precision mechanical parts, fasteners, and structural shafts. It retains the same lightweight and corrosion resistance as the sheet, with good toughness, which can withstand moderate impact and ensure long-term reliable operation in transmission and load-bearing scenarios.
The most prominent advantage of AZ91D is its excellent die-casting performance, which enables high-efficiency mass production, reduces manufacturing costs, and ensures consistent product quality. It forms a natural oxide film on the surface for basic corrosion resistance, and its performance can be further improved through anodizing, micro-arc oxidation, or coating to adapt to harsher environments such as humidity and mild corrosion.
Their applications are clearly differentiated: AZ91D sheet is widely used in automotive transmission cases, instrument panels, laptop casings, and camera bodies, leveraging its good forming performance and surface finish. AZ91D rod is suitable for precision shafts, valve cores, electric tool components, and medical device brackets, with precise dimensional control and reliable mechanical performance.
Our AZ91D magnesium sheet and rod comply with GB/T 25748-2010 and ASTM B94 standards, with complete specifications: sheets in various thicknesses and widths, rods in diameters 5mm–200mm. Each batch undergoes strict testing of chemical composition, mechanical properties, and surface quality to ensure no defects. We provide customized cutting, machining, and surface treatment services to meet diverse mass production needs.
With its excellent castability, cost-effectiveness, and lightweight performance, AZ91D magnesium sheet and rod are ideal solutions for mass-produced lightweight components. They help enterprises reduce production costs, improve product competitiveness, and meet the green manufacturing trend in automotive, electronics, and general machinery industries.
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Han Wei, an import and export trading company with advanced processing equipment for aluminum raw materials such as aluminum sheets and other aluminum raw materials as its main business.
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