3004 Aluminum Alloy Coils: High-Strength, Corrosion-Resistant Solutions for Demanding Packaging & Industrial Applications
As a premium member of the 3xxx series aluminum alloys (manganese as the primary alloying element, with added magnesium for enhanced performance), 3004 Aluminum Alloy Coils have earned a reputation for exceptional strength, superior corrosion resistance, and excellent formability. Designed as an upgraded version of the widely used 3003 alloy, 3004 delivers higher tensile strength and better ductility, making it the go-to choice for applications that demand both durability and processability-from pressure-sensitive beverage cans to heavy-duty architectural panels. Unlike many alloys that sacrifice formability for strength, 3004 strikes a perfect balance, enabling seamless fabrication of complex shapes while ensuring long-term reliability in harsh environments. Whether you're producing beverage cans, automotive parts, architectural cladding, or industrial equipment, our 3004 Aluminum Alloy Coils deliver consistent quality, tailored performance, and cost-effectiveness to meet your most demanding project needs. Below, we dive into their core properties, technical specifications, key applications, fabrication tips, and quality assurance to help you fully leverage this high-performance material.
Crafted from high-purity aluminum ingots with precisely controlled manganese (1.0-1.5%) and magnesium (0.8-1.3%) content, our 3004 Aluminum Alloy Coils undergo advanced hot rolling, cold rolling, and tempering processes (available in H14, H16, H18, H34, H36, H38 tempers). Every step of production is closely monitored to ensure uniform thickness, smooth surface finish, and stable mechanical properties across each coil-critical for both high-volume packaging production and large-scale industrial fabrication. Trusted by manufacturers, fabricators, and contractors in Europe, Asia, North America, and South America, our 3004 Aluminum Alloy Coils are backed by rigorous quality control and flexible customization options, seamlessly adapting to diverse project requirements from food & beverage packaging to offshore architectural projects.
Core Properties of 3004 Aluminum Alloy Coils
3004 Aluminum Alloy Coils stand out from other 3xxx series alloys due to the synergy of manganese and magnesium, which enhances both strength and formability. Its non-heat-treatable nature means strength is achieved through strain hardening, allowing for tailored temper options to match specific application needs. Here are the key characteristics that make 3004 a top choice for professionals worldwide:
Enhanced Strength & Durability: Compared to 3003, 3004 offers 20-30% higher tensile strength (depending on temper), with tensile strength ranging from 180 MPa (H14) to 310 MPa (H18). This makes it suitable for load-bearing applications like automotive parts, architectural panels, and pressure packaging-without compromising ductility.
Superior Corrosion Resistance: The combination of manganese and magnesium forms a dense protective oxide layer, giving 3004 excellent resistance to atmospheric corrosion, saltwater, and mild chemicals. It is highly resistant to pitting, crevice corrosion, and stress corrosion cracking (SCC), making it ideal for coastal applications, marine components (non-submerged), and food & beverage packaging (resistant to acidic contents).
Exceptional Formability & Deep Drawability: 3004 excels in cold working processes, including bending, stamping, deep drawing, and rolling. Its outstanding deep drawability is a key advantage for packaging applications-enabling the fabrication of seamless, thin-walled containers (e.g., beverage cans, food cans) with tight tolerances. It can also be formed into complex shapes for architectural and automotive components without cracking or excessive deformation.
Reliable Weldability: 3004 is readily weldable using common techniques such as gas metal arc welding (GMAW/MIG) and gas tungsten arc welding (GTAW/TIG) with matching aluminum-manganese filler metals (e.g., ER3003, ER3004). Welded joints retain high strength and corrosion resistance, with minimal post-weld processing required-ideal for fabricating large structures like architectural frameworks and industrial ducting.
Good Thermal Conductivity: With a thermal conductivity of 180 W/(m·K) (20°C), 3004 is suitable for heat transfer applications such as heat exchangers, radiators, and HVAC components. It balances thermal performance with strength, making it a versatile choice for industrial thermal systems.
Lightweight Advantage: With a density of 2.73 g/cm³, 3004 is 35% lighter than steel. This lightweight property reduces overall product weight and transportation costs, while lowering the load on supporting structures-critical for automotive parts (improving fuel efficiency), architectural applications (simplifying installation), and packaging (reducing material usage).
Food-Grade & Non-Toxic: 3004 is non-toxic and compliant with global food contact standards (e.g., FDA, EU 10/2011), making it ideal for food & beverage packaging applications. Its chemical stability ensures no interaction with food or beverage contents, preserving product quality and safety.
Key Technical Specifications of 3004 Aluminum Alloy Coils
Our 3004 Aluminum Alloy Coils are manufactured to strict industry standards, ensuring consistency and reliability for every order. Below are the detailed technical specifications (custom options available upon request):
Alloy Composition: Aluminum (Al) ≥ 95.8%, Manganese (Mn) 1.0-1.5%, Magnesium (Mg) 0.8-1.3%, Iron (Fe) ≤ 0.70%, Silicon (Si) ≤ 0.30%, Copper (Cu) ≤ 0.25%, Zinc (Zn) ≤ 0.25%, Titanium (Ti) ≤ 0.10%
Available Tempers & Definitions:
H14: Strain-hardened to a moderate level, no annealing after cold working. Balances strength and formability (ideal for general packaging, architectural trim).
H16: Strain-hardened to a higher level than H14. Enhanced strength for applications requiring more load-bearing capacity (e.g., automotive parts, industrial components).
H18: Full strain-hardened, no annealing. Maximum strength for high-stress applications (e.g., pressure packaging, heavy-duty industrial parts).
H34: Strain-hardened, partially annealed, and stabilized. Prevents age hardening during service, suitable for applications requiring stable properties (e.g., offshore architectural components).
H36: Higher strain hardening than H34, partially annealed, and stabilized. Enhanced strength with stable properties (e.g., marine components, high-stress architectural parts).
H38: Full strain hardening, partially annealed, and stabilized. Maximum strength with stability (e.g., extreme environment industrial equipment).
Thickness Range: 0.15 mm - 10.0 mm (common thicknesses: 0.15 mm - 0.3 mm for beverage can bodies, 0.3 mm - 1.5 mm for food cans/automotive trim, 1.5 mm - 5.0 mm for architectural panels, 5.0 mm - 10.0 mm for industrial equipment)
Width Range: 1000 mm - 2500 mm (custom widths available to minimize material waste and match production line requirements, especially for high-volume packaging production)
Coil Weight: Standard coil weight: 500 kg - 5000 kg (custom coil weights available for easy handling and storage, including small-batch production and large-scale industrial projects)
Surface Finish Options: Mill finish (smooth, clean surface), food-grade finish (for packaging applications), chemical conversion coating (enhanced weldability and corrosion resistance), PVDF coating (superior weather resistance and color customization), anodization (decorative and protective finish), lacquered finish (for food & beverage cans)
Mechanical Properties (Typical by Temper):
H14: Tensile strength = 180-210 MPa, Yield strength = 160-190 MPa, Elongation (in 50 mm) = ≥12%
H16: Tensile strength = 220-250 MPa, Yield strength = 200-230 MPa, Elongation (in 50 mm) = ≥8%
H18: Tensile strength = 280-310 MPa, Yield strength = 260-290 MPa, Elongation (in 50 mm) = ≥5%
H34: Tensile strength = 180-210 MPa, Yield strength = 150-180 MPa, Elongation (in 50 mm) = ≥13%
H36: Tensile strength = 220-250 MPa, Yield strength = 190-220 MPa, Elongation (in 50 mm) = ≥9%
H38: Tensile strength = 280-310 MPa, Yield strength = 250-280 MPa, Elongation (in 50 mm) = ≥6%
Electrical & Thermal Properties: Thermal conductivity = 180 W/(m·K) (20°C), Electrical conductivity = 42% IACS, Electrical resistivity = 0.042 Ω·mm²/m (20°C)
Standards Compliance: ASTM B209 (Aluminum and Aluminum-Alloy Sheet and Plate/Coil), EN 485-2 (Aluminum sheets/coils for structural applications), GB/T 3880 (Aluminum and aluminum alloys for general and structural purposes), FDA (Food and Drug Administration) 21 CFR 175.300 (food contact), EU 10/2011 (food contact)
Quality Certifications: ISO 9001, ISO 14001, ISO 45001, and material test reports (MTR) available for every coil; Food-grade certification, corrosion resistance test reports (salt spray test), weldability test reports, and architectural/automotive industry certifications available upon request
Key Applications of 3004 Aluminum Alloy Coils
The exceptional combination of strength, corrosion resistance, formability, and food-grade compliance makes 3004 Aluminum Alloy Coils suitable for a wide range of demanding industries and applications. Below are the primary use cases, organized by industry to highlight its versatility:
1. Food & Beverage Packaging (Primary Application)
Beverage can bodies (soda, beer, energy drinks), food cans (canned fruits, vegetables, soups), foil containers, and bottle caps. 3004's outstanding deep drawability enables the fabrication of seamless, thin-walled can bodies with consistent thickness and tight tolerances. Its food-grade compliance and corrosion resistance ensure no interaction with acidic or alkaline food/beverage contents, preserving product quality and shelf life. The H14 and H16 tempers are most commonly used for packaging applications, balancing formability and strength to withstand the pressure of carbonated beverages.
2. Architectural & Construction
Exterior cladding, roofing sheets, curtain walls, ceiling panels, and coastal building components. 3004's corrosion resistance protects against salt spray, atmospheric humidity, and UV radiation, ensuring long-term aesthetic and structural integrity in coastal and harsh environments. Its formability allows for custom architectural designs (curved panels, intricate trim), and surface finish options (PVDF coating, anodization) provide a wide range of color and texture choices. The H34 and H36 tempers are preferred for architectural applications, offering stable properties and resistance to age hardening.
3. Automotive Industry
Automotive body panels (door panels, fenders), heat shields, fuel tanks (liners), radiator cores, and interior trim. 3004's high strength-to-weight ratio improves vehicle fuel efficiency and reduces emissions, while its corrosion resistance protects against road salt and engine heat. Its formability enables the fabrication of complex curved body panels, and its weldability allows for seamless assembly of automotive components. The H16 and H18 tempers are used for high-strength automotive parts, while H14 is suitable for interior trim and non-load-bearing components.
4. Industrial Equipment & HVAC
Industrial ducting, ventilation systems, heat exchanger coils, chemical storage tank liners (for mild chemicals), and industrial equipment housings. 3004's strength and corrosion resistance ensure durability in industrial environments, while its thermal conductivity makes it ideal for heat transfer applications. The H14 and H34 tempers are suitable for ducting and heat exchangers, balancing formability and thermal performance, while H16 and H36 are used for high-stress industrial equipment components.
5. Marine & Offshore Applications
Small boat hulls (non-submerged), marine railings, deck panels, and offshore platform components. 3004's corrosion resistance protects against saltwater and marine atmospheric conditions, ensuring long-term durability in offshore environments. Its lightweight property improves boat maneuverability, and its weldability allows for the fabrication of custom marine components. The H34 and H36 tempers are preferred for marine applications, offering stable properties and resistance to stress corrosion cracking.
6. Renewable Energy
Solar panel support structures, wind turbine tower components, and offshore wind farm platform parts. 3004's corrosion resistance protects against wind, rain, salt spray, and UV radiation, ensuring long-term reliability in renewable energy installations. Its high strength-to-weight ratio reduces the load on supporting structures, and its formability allows for custom component designs. The H34 and H36 tempers are suitable for renewable energy applications, offering stable properties and durability in harsh outdoor environments.
7. Consumer Goods & Appliances
Refrigerator door panels, washing machine drums, air conditioner housings, and lightweight luggage frames. 3004's corrosion resistance protects against moisture and detergent chemicals in appliances, while its formability enables the fabrication of custom appliance components. Its lightweight property improves the usability of consumer goods, and its aesthetic appeal (through anodization or coating) enhances product design. The H14 temper is most commonly used for consumer goods, balancing formability and strength.
Fabrication & Processing Tips for 3004 Aluminum Alloy Coils
To maximize the performance and quality of your end products, here are practical fabrication and processing tips for 3004 Aluminum Alloy Coils, based on our experience supporting global manufacturers in demanding industries:
Temper Selection: Choose the right temper based on your application:
Packaging: H14 (general packaging), H16 (carbonated beverage cans)
Architecture: H34 (coastal cladding), H36 (high-stress architectural parts)
Automotive: H16 (body panels), H18 (high-strength components)
Industrial: H14 (ducting), H34 (heat exchangers), H16 (high-stress equipment)
Cutting & Machining: Use laser cutting, plasma cutting, or shearing for clean, precise cuts-laser cutting is ideal for thin coils (≤1.0 mm) to maintain edge quality, while plasma cutting works well for thicker coils (≥2.0 mm). When machining, use carbide tools with sharp cutting edges and moderate cutting speeds to prevent material work hardening. Use coolant to reduce heat buildup and improve surface finish, avoiding excessive heat that may alter the temper's properties.
Bending & Forming: 3004 can be cold-formed at room temperature, with minimum bend radii varying by temper: H14 (2-3 times the sheet thickness), H16 (3-4 times), H18 (4-5 times), H34 (2-3 times), H36 (3-4 times), H38 (4-5 times). For complex shapes or tight bends, anneal the coil to O temper first (consult our technical team for parameters) to enhance formability, then re-strain harden if needed to restore strength. Use progressive stamping with precision dies for high-volume packaging production to ensure consistent quality.
Welding Recommendations: Use gas metal arc welding (GMAW/MIG) with ER3003 or ER3004 filler metal, or gas tungsten arc welding (GTAW/TIG) with ER3003 filler metal for optimal weld strength and corrosion resistance. Preclean all weld surfaces thoroughly to remove oil, grease, oxide layers, and moisture-critical for preventing weld defects (porosity, cracks). Use a shielding gas (argon or argon-helium mixture) to protect the weld pool, and avoid excessive heat input to minimize the heat-affected zone (HAZ) and distortion.
Surface Treatment Guidelines: For food & beverage packaging, use a food-grade lacquered finish to enhance corrosion resistance and prevent direct contact between aluminum and food/beverage contents. For architectural applications, apply a chemical conversion coating followed by PVDF coating or anodization to improve weather resistance and aesthetic appeal. For industrial equipment, use chemical conversion coating to enhance weldability and corrosion resistance. Ensure surface treatments are applied in a clean, dry environment to avoid contamination.
Handling & Storage: Handle coils with proper lifting equipment to avoid edge damage and surface scratches. Store in a dry, covered area away from moisture, salt, and corrosive substances. Keep coils vertically on specialized racks to prevent deformation. For long-term storage, use protective film or wrapping to shield the surface from dust and moisture. Avoid contact with carbon steel to prevent galvanic corrosion, especially in coastal environments.
Quality Inspection: Conduct regular inspections during fabrication to check for dimensional accuracy, surface defects (scratches, dents, weld cracks), and mechanical properties to ensure compliance with temper requirements. For food & beverage packaging, perform additional tests (food contact compliance, pressure resistance tests) to validate performance. For architectural and automotive applications, use calipers and gauges to verify dimensional accuracy and surface finish quality.
Our Quality Assurance & Customization Services
We understand that consistent quality and tailored solutions are critical for your success in demanding industries like food & beverage packaging, architecture, and automotive manufacturing. That's why our 3004 Aluminum Alloy Coils are backed by rigorous quality assurance and flexible customization services:
Strict Quality Control: Our 3004 coils undergo multi-stage quality inspections-from raw material selection (high-purity aluminum ingots) to rolling, tempering, and final packaging. Our quality team tests chemical composition, mechanical properties (tensile strength, yield strength), thickness uniformity, surface finish, and corrosion resistance to ensure every coil meets temper requirements and industry standards. For food & beverage packaging applications, we conduct additional food contact compliance tests to ensure product safety.
Full Traceability: Every coil comes with a unique batch number and detailed material test report (MTR), providing full traceability of chemical composition, mechanical properties, production processes, and temper treatment. This is critical for your quality management systems and compliance with global regulations (e.g., FDA, EU 10/2011 for food contact, automotive industry standards).
Customization Options: We offer custom thicknesses (0.15 mm - 10.0 mm), widths (1000 mm - 2500 mm), and coil weights (500 kg - 5000 kg) to match your production needs. We also provide tailored surface treatments (food-grade lacquer, PVDF coating, anodization) and pre-fabricated components (laser-cut blanks, stamped parts, rolled sections) to save you production time and costs. Our engineers can work with your team to develop custom solutions for specialized applications, such as high-volume can production or custom architectural designs.
Technical & Logistics Support: Our team of aluminum experts and industry specialists provides personalized guidance on temper selection, fabrication techniques, welding parameters, and surface treatment. We offer technical samples for testing and validation, especially for critical packaging and automotive projects. We use specialized packaging (wooden crates, anti-corrosion film, food-grade packaging) to protect coils during transit and offer global shipping solutions to meet your production schedules-including on-time delivery to can factories, automotive assembly plants, and architectural fabrication facilities worldwide.
Whether you're producing millions of beverage cans, designing a coastal architectural landmark, manufacturing automotive components, or fabricating industrial equipment, our 3004 Aluminum Alloy Coils deliver the high strength, corrosion resistance, and formability your projects demand. Trust our expertise in high-performance aluminum alloys to provide consistent, high-quality coils that enhance the durability, functionality, and competitiveness of your end products. Contact us today to discuss your specific 3004 Aluminum Alloy Coil requirements, request a sample, or get a customized quote.
