4047 aluminum coil and strip feature high silicon content, excellent flowability, and low melting point—ideal for brazing and thermal management. Compared to 4045, it provides better joint fill and sealing performance.
Chalco offers stable supply in single alloy and clad formats, including ultra-thin, wide-width, and slit coils for use in automotive, battery cooling, HVAC, and aerospace applications.
Specification of Chalco 4047 aluminum coil strip
Temper: O, H12, H22, H14, H24, H16, H26, H18, F, H112, etc.
Thickness range: 0.05 mm – 6.0 mm
Width range: 5 mm – 2200 mm (sheet width 450mm-2200mm; coil width 5mm-2200mm)
Coil inner diameter: 75 / 76 / 150 / 200 / 300 / 505 mm
Roll weight: Normally 200-300 kg/roll, can also be customized according to demand
Surface condition: Cold rolled (smooth surface), descaling, protective film can be provided
Implementation standards: AMS 4185, QQ-B-365, HMS 2273, Mil-B-20148, Alloy 718, BALSi4, AWS5.8, UNS A94047, ASTM-B-247, AA4047, EN AW-4047A, and EN AW-Al Si12(A), etc.
Base 4047 aluminum materials for brazed structures
Chalco offers a full range of standard 4047 aluminum products—sheet, coil, and strip—designed for brazing and thermal management systems. With high silicon content, low melting point, and superior corrosion resistance, these products deliver excellent flowability, dimensional consistency, and compatibility with high-performance brazing processes.
Whether used in automotive heat exchangers, battery cooling plates, or electronic thermal components, our standard 4047 product types provide a reliable foundation for both mass production and custom-engineered solutions.Quick Quote
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4047 Aluminum Sheet
Flat-panel format for structural brazing components and formed parts.
Thickness: 0.3–3.0 mm
Width: 450–2200 mm
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4047 Aluminum Coil
Continuously rolled for brazing and cladding. Excellent flatness and fluidity.
Thickness: 0.08–3.0 mm
Width: 100–1600 mm
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4047 Aluminum Strip
Precision-slit narrow strip with smooth edges and tight tolerances.
Thickness: 0.08–3.0 mm
Width: ≥5 mm (Cutting accuracy: ±0.1 mm)
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4047 aluminum sheet – fixed panel for structural brazed parts4047 aluminum sheet is supplied in fixed-size panels with high flatness and formability, making it suitable for structural parts that require strong, airtight brazed joints. It is commonly used in battery cooling plates, heat exchanger housings, and customized brazed panel assemblies.
Typical applications: Thermal control plates, heat exchanger shells, formed brazed components in EVs and HVAC equipment
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4047 aluminum coil – continuous roll for brazing and lamination
4047 aluminum coil is produced by continuous rolling process, with good thickness consistency, surface flatness and excellent brazing fluidity, suitable for large-area continuous lamination, brazing or slitting processing applications.
Typical applications: large substrates for heat exchangers, composite layers for liquid cooling plates, and original rolls for slitting and tape making
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4047 aluminum strip – precision slit for fins and small modules4047 aluminum strip features excellent flatness, edge quality, and dimensional stability from precision slitting, making it ideal for brazed structural components. It is widely used in high-precision applications such as condenser sheets, cooling plate fins, heat exchanger parts, and electronic cooling modules.
Typical applications: precision brazed fins, small liquid cooling channels, electronic packaging heat exchangers
High-performance 4047 aluminum variants: ultra-thin, clad, and custom integration
In addition to standard sheet, coil, and strip, Chalco provides advanced 4047 aluminum variants designed for high-precision brazing and complex thermal systems. These include ultra-thin foils, clad materials, and formable strips for demanding structural or integration needs.Quick Quote
4047 ultra-thin aluminum coil strip/foil
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In response to the needs of precision electronics and micro thermal management, 4047 aluminum can be processed into ultra-thin foils with high flexibility, excellent surface quality and outstanding brazing adaptability.
ASTM B479 EN 546 GB/T 3198
It is particularly suitable for electronic packaging, sensor modules, micro heat exchangers and other applications that require extremely high dimensional tolerance and welding reliability.
Thickness range: 0.08–0.20 mm
Width range: 10–500 mm
Typical applications: electronic packaging brazing, micro heat exchangers, precision connectors. Contact us to customize ultra-thin 4047 foil solutions for your precision brazing and thermal projects.Quick Quote
4047 aluminum custom slit strip
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4047 aluminum coil can be slit and processed with high precision according to customer needs to ensure that the edges of narrow strips are neat, the dimensions are stable, and the surface is intact.
ASTM B209 EN 485 GB/T 3880
It is mainly used in the manufacture of precision heat exchanger fins, electronic connecting strips, and cooling system small components. It is suitable for subsequent efficient brazing and fine processing processes to improve product consistency and yield.
Slitting width: minimum up to 5 mm
Cutting accuracy: within ±0.1 mm
Typical applications: heat exchanger fin strips, electronic connectors, small liquid cooling modules. Contact us for customized slit 4047 strips to match your brazing and cooling system designs.Quick Quote
4047 aluminum clad brazing strip
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4047 composite coated aluminum coil uses high-purity 4047 aluminum alloy as the surface brazing layer, coated on high-quality core materials (such as 3003, 3005, 6061, etc.), taking into account excellent structural strength, forming performance and excellent brazing fluidity.
ASTM B928 EN 1396 Enterprise customized standards (project specifications)
By controlling the thickness ratio of the coating layer, high-quality and efficient brazing connections can be achieved in the fields of heat exchanger manufacturing, battery cooling systems, liquid cooling modules, etc. Single-sided or double-sided coating structure customization is supported to meet different process requirements.
Structural form: single-sided cladding/double-sided cladding/multi-layer composite
Thickness range: 0.3–3.0 mm (overall thickness)
Typical applications: heat exchanger plates, battery liquid cooling components, brazed pipe fittings. Reach out to customize clad 4047 brazing materials tailored to your multi-layer thermal systems and joining requirements.Quick Quote
| Hot selling composite products | ||
| 4047/3003 | 4047/6063 | 4047/6951 |
| 4047/3003/4047 | 4047/3005/4047 | 4047/6061/4047 |
| 4047/3003/7072 | 4047/6063/4343 | 4343/3005/4047 |
4047 clad tube forming strip
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4047 composite coil combines a 4047 brazing layer with a formable core alloy (e.g., 3003, 6063, 6951), enabling easy forming and strong, leak-proof welds. It is ideal for corrosion-resistant pipes in automotive condensers, battery cooling, and HVAC systems.
ASTM B928 Customized standards (according to ASTM B209/EN heat exchanger specifications)
It is widely used in the manufacture of automobile condenser tubes, battery liquid cooling system pipelines, and industrial small heat exchanger pipes, taking into account the formability, brazing efficiency and structural stability of the final product.
Base material selection: 3003, 6063, etc.
Brazing layer configuration: single-sided/double-sided 4047 brazing layer
Thickness range: 0.5–2.5 mm
Typical applications: automobile condenser tubes, power battery liquid cooling tubes, precision heat exchanger tubes. Contact us to develop tailored 4047 tube-forming clad strips for high-efficiency brazed pipes and precision thermal assemblies.Quick Quote
| Hot selling pipe composite structure | ||
| 4047/3003 | 4047/6063 | 4047/6951 |
| 4047/3003/4047 | 4047/6063/4047 | 4047/3003/7072 |
Chalco 4047 aluminum sheet coil strip technical parameters
| Key Specifications and Quality Indicators for 4047 aluminum coil strip | |
| Composite layer structure | 4047/3003/4047 three-layer composite or heterogeneous composites such as 4047/6063, 4047/6951 |
| Coating thickness | 0.03 mm – 0.15 mm (customizable) |
| Coating type | Single-sided, double-sided, or heterogeneous coating |
| Surface protection | Optional anti-oxidation film and protective coating |
| Peel strength | ≥10 N/mm, ensuring strong bonding without delamination risk |
| Non-destructive testing | Ultrasonic testing to detect absence of delamination, bubbles, and other defects |
| Salt spray test | Over 96 hours, suitable for high humidity and corrosive environments |
| Chemical composition standards | ASTM B209, EN 573, GB/T 3190 |
| Mechanical property standards | ASTM B928, EN 485, EN 1396 |
| Quality management system | ISO 9001 certified |
| 4047 aluminum coil chemical composition | |
| Element | Content range |
| Si (Silicon) | 11.0–13.0% |
| Fe (Iron) | ≤ 0.80% |
| Cu (Copper) | ≤ 0.30% |
| Zn (Zinc) | ≤ 0.20% |
| Al (Aluminum) | Balance |
| Implementation standards: ASTM B209, EN 573, GB/T 3190 | |
| Mechanical properties of 4047 aluminum strip | |
| Project | Typical values (H18 status) |
| tensile strength | 170–200 MPa |
| Yield Strength | 80–120 MPa |
| Elongation | 1–5% |
| Hardness (Brinell HB) | 60–75 HB |
| 4047 aluminum strip welding and brazing performance | |
| Project | Value/Characteristics |
| Melting point range | 577–605°C |
| Brazing fluidity | Excellent (suitable for efficient brazing) |
| Hot crack resistance | Excellent (better than 4045) |
| Typical Applications | Vacuum brazing, molten salt brazing, inert gas brazing, etc. |
| Features: 4047 alloy has low melting point, high fluidity, and excellent air tightness of brazed joints. | |
4047 aluminum products manufacturing process and quality control
Chalco offers a complete in-house production chain for 4047 aluminum coils, including alloy melting, hot and cold rolling, composite rolling, slitting, and surface treatment. This integrated control ensures products meet international standards for composition, dimensional accuracy, surface finish, and bonding strength. We provide both conventional single-material strips and mass-produce various composite coatings (single-, double-sided, and heterogeneous) tailored to customer needs, shortening supply chains and improving cost efficiency.Quick Quote
| Production capability overview of Chalco 4047 aluminum coil & strip | ||
| Key Process | Core Capability | Customer Benefit |
| Alloy Melting | High-purity raw materials; real-time spectrometer analysis | Stable composition; fine grain structure |
| Hot & Cold Rolling | Multi-pass precision rolling; AGC thickness control | Tight thickness tolerance; excellent flatness |
| Composite Rolling | Single/double-sided, heterogeneous coatings bonded to core alloys (3003/6063/6951) | Flexible solutions for brazing requirements |
| Slitting & Surface Treatment | High-speed, precise slitting (5–1600 mm); optional deoxidation and film coating | Custom widths; clean surface and superior edge quality |
| Quality Control & Traceability | Ultrasonic and peel strength testing; compliance with ASTM, EN, ISO standards | Reliable bonding; stable quality; full batch traceability |
Quality control & product assurance
- Composition Analysis: Real-time spectrometer testing ensures chemical consistency before casting.
- Dimensional Monitoring: AGC automatic system controls thickness and flatness precisely.
- Bonding Quality: Ultrasonic inspections and peel tests ensure strong, delamination-free composite layers.
- Standards & Certification: ISO 9001 certified, compliant with ASTM B209/B928, EN 485/1396, and customized standards.
- Traceability: Each coil has a unique batch number for full process and quality traceability.
Chalco 4047 aluminum products cooperation areas
With excellent manufacturing capabilities, stable product performance and flexible customization services, Chalco's 4047 aluminum coils are widely used in multiple industries, successfully helping many domestic and foreign customers achieve performance improvement and cost optimization in key links such as thermal management, energy exchange, and lightweight manufacturing. Our products have passed rigorous application verification, are suitable for a variety of complex working conditions, and have won high recognition from industry customers.
Automotive industry
Used in condensers, evaporators, oil coolers, and automotive AC heat exchangers, 4047 aluminum coil provides strong brazing bonds and excellent corrosion resistance for reliable thermal management.
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Power battery cooling systems
Ideal for EV battery cooling plates and hydrogen fuel cell heat exchangers, 4047 aluminum coil ensures precise brazing, durability, and effective heat dissipation under demanding conditions.
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Industrial heat exchange equipment
Applied in industrial air coolers, plate and shell-tube heat exchangers, and hydraulic oil coolers, 4047 aluminum coil delivers high strength, dimensional stability, and corrosion resistance.
Contact us nowRail transit and ship systems
Used in high-speed rail and ship engine cooling systems, 4047 aluminum coil offers robust brazing quality and reliable performance under harsh operating environments.
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Electronics and communications cooling systems
For 5G base stations, servers, and data centers, 4047 aluminum coil ensures efficient heat transfer with stable brazing and excellent dimensional accuracy.
Contact us nowHVAC and home climate systems
4047 aluminum coil is used in commercial HVAC systems and home appliances like condensers and heat pumps, offering reliable brazing, corrosion resistance, and long-lasting thermal performance.
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Whether it is automotive thermal management, new energy liquid cooling, industrial heat exchange equipment, or high-end electronic cooling systems, Chalco can provide you with reliable performance, flexible specifications of 4047 aluminum coils and composite product solutions to help your project land efficiently.
Welcome to contact us to learn more industry application cases and customized services!
Chalco 4047 aluminum coil strip hot selling size stock table
To meet the strict demands of automotive thermal management, battery cooling, industrial heat exchangers, and electronic packaging, Chalco offers high-performance 4047 aluminum coils with advanced manufacturing and complete specifications. With precise composition control, excellent weldability, dimensional accuracy, and stable quality, Chalco's 4047 coils reliably support high-end manufacturing needs.
| 4047 aluminum coil dimensions | ||
| Size (Thickness × Width × Length) | Specification | Remarks |
| 0.003" × 4" × 24" | ASTM B209 | Standard coil stock |
| 0.005" × 6" × 24" | ASTM B209 | Thin sheet coil |
| 0.008" × 6" × 12" | ASTM B209 | Lightweight applications |
| 0.010" × 6" × 24" | ASTM B209 | General brazing use |
| 0.010" × 6" × 36" | ASTM B209 | Extended size option |
| 0.010" × 12" × 36" | ASTM B209 | Wide-format coil |
| 0.012" × 6" × 36" | ASTM B209 | Structural applications |
| 0.015" × 6" × 24" | ASTM B209 | Mid-thickness usage |
| 0.015" × 12" × 36" | ASTM B209 | General-purpose sheet |
| 0.020" × 12" × 72" | ASTM B209 | Large format coil |
| 0.025" × 3" × 24" | ASTM B209 | Narrow width option |
| 0.030" × 12" × 72" | ASTM B209 | Heavy-duty applications |
| 0.040" × 12" × 72" | ASTM B209 | Structural components |
| 0.045" × 6" × 36" | ASTM B209 | Medium-thickness usage |
| 0.050" × 12" × 72" | ASTM B209 | Common in heavy brazing |
| 0.060" × 12" × 72" | ASTM B209 | Industrial usage |
| 0.080" × 12" × 72" | ASTM B209 | Reinforced applications |
| 0.090" × 12" × 36" | ASTM B209 | High strength requirement |
| 0.125" × 12" × 72" | ASTM B209 | Heavy structure fabrication |
| 0.160" × 4.5" × 6" | ASTM B209 | Small part manufacturing |
| 0.190" × 24" × 12" | ASTM B209 | Specialty component use |
| 0.190" × 24" × 72" | ASTM B209 | Heavy plate size |
| 0.250" × 8" × 12" | ASTM B209 | Medium-thick plates |
| 0.500" × 6" × 12" | ASTM B209 | Thick plate stock |
| 0.500" × 12" × 36" | ASTM B209 | Heavy duty applications |
| 0.750" × 12" × 32" | ASTM B209 | Maximum thickness range |
| 4047 aluminum strip dimensions | ||
| Size (Thickness × Width × Length) | Specification | Remarks |
| 0.003" × 4" × 24" | ASTM B209 | Precision strip stock |
| 0.005" × 6" × 24" | ASTM B209 | Thin strip for forming |
| 0.008" × 6" × 12" | ASTM B209 | Lightweight strip |
| 0.010" × 6" × 24" | ASTM B209 | Strip for brazing |
| 0.010" × 6" × 36" | ASTM B209 | Extended strip format |
| 0.010" × 12" × 36" | ASTM B209 | Wide strip for fabrication |
| 0.012" × 6" × 36" | ASTM B209 | Medium gauge strip |
| 0.015" × 6" × 24" | ASTM B209 | General-purpose usage |
| 0.015" × 12" × 36" | ASTM B209 | Wide strip |
| 0.020" × 12" × 72" | ASTM B209 | Large dimension strip |
| 0.025" × 3" × 24" | ASTM B209 | Narrow cut strip |
| 0.030" × 12" × 72" | ASTM B209 | Industrial usage strip |
| 0.040" × 12" × 72" | ASTM B209 | Heavy structure usage |
| 0.045" × 6" × 36" | ASTM B209 | Mid-range thickness strip |
| 0.050" × 12" × 72" | ASTM B209 | Heavy duty strip stock |
| 0.060" × 12" × 72" | ASTM B209 | High load applications |
| 0.080" × 12" × 72" | ASTM B209 | Structural strip |
| 0.090" × 12" × 36" | ASTM B209 | Compact heavy strip |
| 0.125" × 12" × 72" | ASTM B209 | Thick strip option |
| 0.160" × 4.5" × 6" | ASTM B209 | Small size strip use |
| 0.190" × 24" × 12" | ASTM B209 | Specialty heavy strip |
| 0.190" × 24" × 72" | ASTM B209 | Large heavy strip format |
| 0.250" × 8" × 12" | ASTM B209 | Medium-thick strip |
| 0.500" × 6" × 12" | ASTM B209 | Maximum thickness strip |
| 0.500" × 12" × 36" | ASTM B209 | Heavy industrial usage |
| 0.750" × 12" × 32" | ASTM B209 | Extra heavy strip |
4047 Similar products detailed description and related product recommendations
| Alloy | Feature Comparison | Recommended application scenarios |
| 4045 | Slightly weaker fluidity than 4047, slightly better corrosion resistance | Air conditioning heat exchanger, standard heat exchange plate |
| 4047 | Low melting point, excellent fluidity, good thermal crack resistance | Power battery liquid cooling plate, high airtight brazing structure |
| 4343 | Slightly higher melting point, good fluidity, excellent joint toughness | Industrial heat exchanger, special atmosphere brazing |
| 7072 | Very high corrosion resistance, used as a protective layer rather than brazing main material | Used as corrosion-resistant surface layer of composite materials |
4047 aluminum
High-silicon brazing alloy with superior flow, sealing, and corrosion resistance for demanding thermal applications.
4043 aluminum
Common cladding alloy in brazed aluminum heat exchangers; offers stable flow and strong bonding performance.
High-strength core alloy designed for vacuum brazed automotive and electronic heat exchangers.
Chalco Aluminum could produce 2024 T351 T851 aircraft aluminum sheet……
A general guide to aluminum filler rods and their applications.
A high-performance welding wire with superior corrosion resistance and brazing flow.
Offers greater strength than 4043 while maintaining excellent weldability.
Enhanced crack resistance and weld integrity, suitable for structural applications.
Knowledge center and FAQs for purchasing 4047 aluminum
Comparison of 4047 and other common brazing materials
4047 vs 4043: 4047 has higher silicon content, offering lower melting point, better flow, and improved gas-tightness—ideal for high-strength, sealed joints. 4043 is more general-purpose with balanced weldability.
4047 vs 4045: 4047 delivers superior brazing fluidity and fill, better for demanding applications. 4045 is suitable for standard use but slightly lower in performance.
4047 vs Copper-based filler metals: Copper fillers resist high temperatures but are more corrosive and costly. 4047 offers better corrosion resistance and economy, ideal for lightweight, efficient brazing.
Common 4047 composite structures and application mapping
| Composite Type | Main Application Fields | Typical Customer Requirements |
| 4047/3003/4047 (three-layer) | Automotive radiators, household air conditioners, electronics cooling modules | High brazing fillability, good corrosion resistance, excellent sealing |
| 4047/6063 | Battery cooling plates, heat pump systems | Lightweight design, balance of strength and brazability |
| 4047/6951 | Aerospace liquid cooling radiators, new energy equipment | High strength, corrosion resistance, suitable for harsh conditions |
| 4047 aluminum strip | Industrial heat exchangers, precision welding for small parts | Excellent welding fluidity, ideal for complex structure filling |
What thickness of 4047 aluminum coil and strip can Chalco provide?
The thickness range we can provide covers 0.08 mm – 3.0 mm. We support coil and strip supply and can also perform slitting, cut-to-length or lamination according to customer needs.
What surface treatments does 4047 aluminum coil support?
The standard supply is cold-rolled smooth surface, with optional descaling, protective film protection, and surface finishing treatment.
If you need special coatings (such as brazing flux pre-coating), please communicate with our technical team for a customized solution.
When purchasing 4047 aluminum coil, can you provide material certificate and test report?
Yes. All factory products can provide chemical composition analysis reports and mechanical properties test reports. If there are special requirements for the project (such as ultrasonic flaw detection reports, peel strength tests, etc.), they can also be issued on demand.
Does Chalco support small batch purchases or sampling?
Yes. We can provide small batch samples according to project requirements and support fast delivery to help customers shorten the R&D and verification cycle.
Which brazing processes are suitable for 4047 aluminum coil?
4047 aluminum coil is suitable for a variety of brazing processes, including vacuum brazing, molten salt brazing, and inert gas shielded brazing (such as argon protection). It is particularly suitable for the manufacture of heat exchangers and liquid cooling plates that have high requirements for air tightness and corrosion resistance.
In addition to products, what other support can Chalco provide?
- Material selection recommendations (based on brazing temperature, fluidity, corrosion resistance, and strength requirements);
- Optimization of brazing process parameters (heating temperature range, protective atmosphere recommendation);
- Product customization and development (different coating structures, tape supply in different states);
- Provide overall solutions for specific application scenarios (such as power batteries and electronic cooling modules).
Chalco can provide you the most comprehensive inventory of aluminum products and can also supply you customized products. Precise quotation will be provided within 24 hours.
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