3003-H14 Aluminum Coil (0.2-10mm Thickness): Versatile & High-Strength Solution for Industrial Applications
Our 3003-H14 aluminum coil, available in a flexible thickness range of 0.2mm to 10mm, stands out as a workhorse in the 3xxx series aluminum alloys-blending the excellent formability of 3003 alloy with the enhanced strength of H14 temper. As a manganese-based aluminum alloy (Al-Mn), 3003-H14 delivers a perfect balance of ductility, corrosion resistance, and structural stability, making it a top choice for diverse industrial, architectural, and commercial applications. Whether you're fabricating thin-gauge decorative panels, medium-thickness industrial ducts, or heavy-duty structural components, this coil's consistent quality and wide thickness adaptability ensure seamless integration into your production process. Below, we break down its core properties, technical specifications, key applications, and processing insights to help you leverage its full potential.
Crafted from premium 3003 aluminum ingots, our H14 temper coils undergo a refined manufacturing process tailored to different thickness requirements: precise melting to control impurity levels, continuous casting for uniform grain structure, multi-pass cold rolling to achieve the desired thickness (from ultra-thin 0.2mm to robust 10mm), and intermediate annealing to lock in H14 temper properties. We prioritize strict quality control at every step-from thickness uniformity checks (tolerance as low as ±0.02mm for thin gauges) to surface treatment that eliminates scratches, oil stains, and oxidation. The result is a 3003-H14 coil with consistent mechanical performance across the entire width and length, trusted by manufacturers and contractors across Europe, North America, Asia, and Oceania for its reliability and versatility.
Core Properties of 3003-H14 Aluminum Coil
3003 alloy is a widely used non-heat-treatable aluminum alloy, with manganese as its primary alloying element (1.0-1.5%). The H14 temper-achieved through partial cold rolling after annealing-endows it with higher strength than annealed (O) temper while retaining excellent formability. Combined with its 0.2-10mm thickness range, these properties make it adaptable to a broad spectrum of applications. Here are its key characteristics:
1. Balanced Strength & Ductility
3003-H14 offers a tensile strength of 110-150 MPa, nearly 50% higher than 3003-O temper. This enhanced strength ensures structural stability for load-bearing components, while its excellent ductility allows for bending, stamping, deep drawing, and welding-even for thin-gauge coils (0.2-1.0mm) and thick-gauge sheets (5.0-10mm). Whether you need to form complex shapes or maintain rigidity, 3003-H14 delivers consistent performance.
2. Superior Corrosion Resistance
The manganese content in 3003 alloy significantly improves its corrosion resistance compared to pure aluminum (1xxx series). It performs exceptionally well in atmospheric environments, fresh water, and mild chemical conditions, with a natural oxide layer that provides long-term protection. This makes it ideal for outdoor applications (e.g., architectural cladding) and industrial environments (e.g., chemical storage tanks for mild substances), even for thin-gauge coils that are more prone to environmental exposure.
3. Excellent Thermal & Electrical Conductivity
3003-H14 retains good thermal conductivity (190 W/(m·K)) and electrical conductivity (40% IACS), making it suitable for heat transfer applications like heat exchangers, radiators, and HVAC ducts. Its conductivity, combined with strength, ensures efficient energy transfer while maintaining structural integrity-critical for both thin-gauge heat exchanger fins (0.2-0.5mm) and thick-gauge heat transfer pipes (3.0-10mm).
4. Wide Thickness Adaptability (0.2-10mm)
Covering a thickness range from 0.2mm to 10mm, our 3003-H14 coil caters to diverse needs: ultra-thin gauges (0.2-1.0mm) for lightweight packaging and decorative parts, medium gauges (1.0-5.0mm) for industrial ducting and architectural components, and thick gauges (5.0-10mm) for heavy-duty structural parts and machinery components. This versatility eliminates the need for sourcing multiple coil grades, simplifying your supply chain.
5. Cost-Effective & Easy to Process
As a widely produced 3xxx series alloy, 3003-H14 offers excellent value for money-balancing performance and cost for mass production. It is easy to cut, slit, bend, weld, and finish (anodizing, painting), with no special processing requirements, reducing production time and costs. Our strict manufacturing control ensures consistent thickness and surface quality, minimizing waste during processing.
Technical Specifications of 3003-H14 Aluminum Coil (0.2-10mm Thickness)
Our 3003-H14 aluminum coil complies with international standards (ASTM B209, EN 485-2, GB/T 3880), with specifications tailored to meet the demands of different thickness applications. Below are the detailed technical parameters:
1. Alloy Composition
Aluminum (Al): ≥ 97.0%
Manganese (Mn): 1.0-1.5% (primary alloying element, enhancing strength and corrosion resistance)
Iron (Fe): ≤ 0.7%
Silicon (Si): ≤ 0.6%
Copper (Cu): ≤ 0.2%
Zinc (Zn): ≤ 0.1%
2. Mechanical Properties (H14 Temper)
Tensile strength: 110-150 MPa
Yield strength: 90-130 MPa
Elongation (50mm): ≥ 10% (varies slightly by thickness: thinner gauges have higher elongation, ~12-15%; thicker gauges ~10-12%)
Hardness (HV): 35-45
3. Dimensional Specifications
Thickness range: 0.2 mm - 10.0 mm (common specifications: 0.2/0.3/0.5/1.0/2.0/3.0/5.0/8.0/10.0 mm)
Thickness tolerance: ±0.02 mm (for 0.2-1.0 mm), ±0.05 mm (for 1.0-5.0 mm), ±0.1 mm (for 5.0-10.0 mm)
Width range: 800 mm - 2500 mm (custom widths available to minimize slitting waste; precise slitting ensures clean, burr-free edges)
Coil weight: 300 kg - 5000 kg (custom weights for easy handling; tight winding prevents deformation during storage and transportation)
4. Surface Finish
Mill Finish: Natural rolling finish, Ra: 0.3-0.5 μm, smooth and uniform, free of scratches, oil stains, or oxidation spots (ideal for most industrial applications)
Anodized Finish (Optional): Clear or colored anodizing (10-20 μm thickness), uniform coating with excellent adhesion, enhanced wear resistance (suitable for architectural and decorative applications)
Pre-Coated Finish (Optional): Polyester or PVDF coating (custom colors), superior corrosion resistance, fade resistance, and weatherability (ideal for outdoor architectural components)
Brushed Finish (Optional): Linear brushed surface, Ra ≤ 0.2 μm, aesthetic appeal for decorative parts (e.g., interior trim, furniture components)
5. Standards & Certifications
Compliance Standards: ASTM B209 (USA), EN 485-2 (Europe), GB/T 3880 (China)
Certifications: ISO 9001 (Quality Management System), ISO 14001 (Environmental Management System); Detailed Material Test Reports (MTR) available for each coil, including chemical composition, mechanical properties, thickness uniformity, and surface quality inspection results
Key Applications by Thickness Range (0.2-10mm)
The 0.2-10mm thickness range of 3003-H14 aluminum coil makes it highly versatile, with specific applications tailored to different thicknesses. Below are the primary use cases, aligned with thickness and performance requirements:
1. Ultra-Thin Gauges (0.2-1.0mm)
Decorative & Packaging Applications: Thin decorative panels, interior trim for automotive/electronics, food packaging containers, and cosmetic packaging. The excellent formability of 3003-H14 allows for intricate shapes, while the thin gauge reduces material weight and cost. Its non-toxicity meets food safety standards for packaging applications.
Heat Exchanger Fins: Air conditioner fins, radiator fins, and heat exchanger cores. The thin gauge maximizes heat transfer efficiency, while H14 strength ensures durability during assembly and use.
2. Medium Gauges (1.0-5.0mm)
Architectural Applications: Architectural cladding, ceiling panels, gutter systems, and window frames. The balanced strength and formability make it easy to install, while corrosion resistance ensures long-term durability in outdoor environments. Medium gauges strike a perfect balance between lightweight and structural stability.
Industrial Ducting & Ventilation: HVAC ducts, industrial ventilation systems, and exhaust pipes. The excellent formability allows for easy bending and welding, while corrosion resistance ensures compatibility with indoor and outdoor industrial environments.
Automotive Components: Automotive interior panels, heat shields, and fuel line covers. Lightweight properties improve fuel efficiency, while H14 strength ensures resistance to vibration and wear.
3. Thick Gauges (5.0-10.0mm)
Structural Components: Lightweight structural brackets, industrial machinery parts, and trailer siding. The thick gauge provides enhanced load-bearing capacity, while 3003-H14's strength ensures reliability in heavy-duty applications.
Chemical & Storage Tanks: Tanks for mild chemicals, water storage tanks, and industrial containers. Corrosion resistance and structural stability make it suitable for storing and transporting non-aggressive fluids.
Marine Applications: Small marine components (e.g., boat fenders, decking parts) that require corrosion resistance to saltwater and harsh marine environments.
Processing & Fabrication Tips for 3003-H14 Aluminum Coil (0.2-10mm)
3003-H14 aluminum coil is easy to process, but proper techniques vary by thickness to ensure optimal quality. Below are practical tips tailored to different thickness ranges:
1. Coil Handling & Storage
For thin gauges (0.2-1.0mm): Use soft slings or rubber-coated hooks to avoid surface scratches and deformation. Store in a dry, clean warehouse (15-25°C, relative humidity ≤ 60%) and wrap in moisture-resistant film to prevent oxidation.
For thick gauges (5.0-10.0mm): Handle with heavy-duty slings, ensuring even weight distribution to avoid edge damage. Store vertically on dedicated racks to prevent warping-thicker coils are heavier and more prone to deformation if stored horizontally.
2. Cutting & Slitting
For thin gauges (0.2-1.0mm): Use precision slitting equipment with sharp carbide blades and reduce slitting speed to avoid material tearing or edge burrs. Ensure the slitting machine is clean to prevent surface scratches.
For thick gauges (5.0-10.0mm): Use high-strength blades and adjust slitting pressure appropriately to ensure clean, burr-free edges. Post-slitting deburring may be required for high-precision applications.
3. Forming & Bending
For thin gauges (0.2-1.0mm): Use moderate pressure for bending and stamping. Follow the minimum bend radius (2x material thickness) to avoid cracking. Thin gauges are highly formable and can be bent into tight radii.
For thick gauges (5.0-10.0mm): Use a larger minimum bend radius (3-4x material thickness) due to higher strength. Pre-heating to 80-120°C can improve formability for complex shapes. Avoid overworking the material to prevent stress concentrations.
4. Welding & Joining
Welding: 3003-H14 is easily weldable using MIG/TIG welding with ER3003 filler metal. For thin gauges, use low welding current to avoid burn-through; for thick gauges, use moderate current and pre-heat the material slightly (if needed) to ensure full penetration.
Mechanical Joining: Use aluminum or stainless steel fasteners to avoid galvanic corrosion. For thin gauges, pre-drill small holes with sharp bits to prevent material tearing; for thick gauges, use drill bits designed for aluminum to ensure clean holes.
5. Surface Treatment
Before anodizing or painting: Clean the surface with a mild alkaline cleaner to remove oil and oxide layers. For thin gauges, use gentle cleaning to avoid deformation; for thick gauges, ensure thorough cleaning to improve coating adhesion.
Anodizing: 3003-H14 produces a uniform, light gray anodized finish. Thinner gauges may require shorter anodizing time to avoid over-etching; thicker gauges can withstand longer anodizing for a thicker coating.
Our Quality Assurance & Customization Services
We understand that different applications require precise thickness and performance specifications. That's why our 3003-H14 aluminum coil (0.2-10mm) is backed by strict quality control and tailored customization services to meet your unique needs:
Strict Quality Control: Every coil undergoes multi-stage inspections: raw material purity testing (optical emission spectrometry), mechanical property testing (tensile, hardness) for H14 temper validation, thickness uniformity checks (laser gauges) across the entire coil, and surface quality inspections (automated vision systems). We ensure every coil meets the required specifications, regardless of thickness.
Full Traceability: Each coil is assigned a unique batch number, enabling full traceability from raw material to finished product. We provide detailed MTR reports with every shipment, so you can verify the quality and performance of your coils.
Tailored Customization: We offer custom thicknesses within the 0.2-10mm range, custom widths (800-2500mm), and custom coil weights (300-5000kg) to match your production line. For surface finishes, we provide custom anodizing colors, pre-coating options, and brushed finishes. Our engineering team can recommend the ideal thickness and surface finish based on your application's requirements.
Technical & Logistics Support: Our team of aluminum experts provides personalized guidance on processing, forming, welding, and surface treatment for different thicknesses of 3003-H14 coil. We offer free technical samples for testing, so you can verify performance before placing large orders. We use specialized packaging (protective film, anti-scratch liners, wooden crates) to ensure coils arrive in perfect condition-critical for thin gauges that are more prone to damage. We also offer global shipping with on-time delivery guarantees to keep your production on schedule.
Whether you need ultra-thin 0.2mm 3003-H14 coil for heat exchanger fins, medium 2.0mm coil for architectural cladding, or thick 10mm coil for structural components, our product delivers the consistency, performance, and versatility you need. Trust our expertise in 3xxx series aluminum alloys to provide solutions that optimize your production efficiency and end-product quality. Contact us today to discuss your specific requirements, request a technical sample, or get a customized quote.
