3104 Aluminum Circles: The Innovator & Performance Benchmark for Deep Drawing
—— High Elongation · Superior Corrosion Resistance · Precision Customization · Global Trusted Choice
【Product Overview】
The 3104 Aluminum Circle, a standout representative of the Al-Mg-Mn alloy series, has set a new benchmark in the metal processing industry, particularly in deep drawing applications, thanks to its unique and balanced chemical composition.
We select high-purity primary aluminum ingots as raw materials. Through a series of rigorous and precise manufacturing processes—from smelting (to control alloy purity) to hot rolling, cold rolling (for precise thickness and grain refinement), and finally precision annealing—we optimize the microstructure. This results in exceptional deep drawing performance and unparalleled corrosion resistance. Every 3104 circle features high dimensional accuracy, mirror-like surface finish, and stable mechanical properties.
【Technical Specifications】
We offer highly flexible customization to meet diverse industrial needs:
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Diameter Range: From 10mm to 1000mm. We provide professional non-standard customization for ultra-large or ultra-small sizes to match your specific equipment.
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Thickness Range: From ultra-light 0.3mm to robust 6.0mm. Thickness tolerance is strictly controlled within $\pm0.02\text{mm}$, exceeding industry standards.
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Available Tempers:
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O (Annealed): The softest state, offering ultimate plasticity and elongation. The top choice for deep drawing and complex forming.
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H14 / H24 (Strain Hardened): Provides a balance of formability and higher strength. Suitable for general stamping.
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H18 (Full Hard): For applications requiring maximum tensile and yield strength.
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Surface Finishes:
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Bright Finish: High gloss, ready for use without additional polishing.
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Matte Finish: Uniform non-reflective texture, ideal for sandblasting or painting.
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Anodizing Ready: Specially treated to ensure uniform color and strong film adhesion after anodizing.
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Coating Substrate: Extremely clean surface for Teflon or other functional coatings.
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【Chemical Composition (Weight %)】
| Element | Content | Impact |
| Silicon (Si) | $\le 0.30\%$ | Enhances strength; kept low to maintain plasticity. |
| Iron (Fe) | $\le 0.7\%$ | Strictly controlled to avoid brittle phases. |
| Copper (Cu) | $\le 0.25\%$ | Controlled to balance strength and corrosion resistance. |
| Manganese (Mn) | $0.8 – 1.3\%$ | Core Element: Improves strength, optimizes grain structure, and enhances deep drawing. |
| Magnesium (Mg) | $0.8 – 1.3\%$ | Core Element: Works with Mn to significantly boost tensile strength and work-hardening capability. |
| Aluminum (Al) | Balance | Base metal. |
【Key Features & Technical Advantages】
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Superior Deep Drawing Performance
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High Elongation: With elongation rates exceeding $20\%$, it handles complex deep-cavity forming (e.g., pressure cooker liners) without cracking.
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Uniform Deformation: Prevents “necking” or tearing during tension, significantly reducing scrap rates.
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Low Work-Hardening Rate: Simplifies the process by reducing the need for intermediate annealing.
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Excellent Corrosion Resistance
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Stability in Harsh Environments: Highly stable in humid or slightly acidic/alkaline conditions, making it ideal for food-grade contact.
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Self-Healing Oxide Layer: Enhanced stability against oxidation for long-lasting durability.
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Superior Workability
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Machinability: Supports high-speed cutting with clean cross-sections.
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Weldability: Compatible with TIG, MIG, and resistance welding, resulting in high-strength, low-porosity joints.
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【Mechanical Properties (Typical Values)】
| Temper | Tensile Strength (Rm/MPa) | Yield Strength (Rp0.2/MPa) | Elongation (A50mm%) | Application Suggestion |
| O | $140 – 180$ | $\le 70$ | $\ge 20$ | Deep Drawing: Pressure cookers, coffee pots, cans. |
| H14 | $150 – 200$ | $110 – 150$ | $\ge 5$ | General Stamping: Tableware, plates, lighting reflectors. |
| H18 | $\ge 240$ | $\ge 220$ | $\ge 3$ | High Strength: Structural brackets, rigid components. |
【Main Application Areas】
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Cookware: Pressure cooker liners, non-stick pan bodies, rice cooker pots.
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Electronics: High-end audio shells, heat sink bases for LED and telecom equipment.
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Architecture: Decorative signage, architectural hardware, and ceiling panels.
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Automotive: Interior trim panels, heat shields, and headlight reflectors.
【Quality Assurance & Service】
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ISO 9001 Certified: Every process follows international quality management standards.
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Traceability: Each batch comes with a Material Test Certificate (MTC) and supports SGS/RoHS testing.
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Rapid Delivery: Standard sizes delivered within 3-5 days. Emergency orders responded to within 24 hours.
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Expert Support: Our technical team provides free material selection consultations and quick prototyping (3-7 days).
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