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Location: HOME > PRODUCTS > Aluminum / Aluminum Alloy > Aluminum/Aluminum Alloy Coil > 3003/3004 Aluminum Coil

3003/3004 Aluminum Coil

3003 and 3004 aluminum coils belong to the 3000-series aluminum-manganese alloy family. These alloys cannot be strengthened by heat treatment; manganese serves as the primary alloying element, providing a balance of strength, ductility, and corrosion resistance. Known as "rust-proof aluminum," they offer higher strength than 1050/1060 alloys and exhibit excellent deep-drawing properties. They are widely used as export materials for applications such as packaging, tank manufacturing, construction, and heat exchangers.

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3003 and 3004 are Al-Mn anti-rust aluminum alloys, non-heat-treatable. Manganese is the main alloying element. 3003 contains minor copper without magnesium. 3004 adds 0.8~1.3% Mg on basis of 3004 to gain higher strength. Impurities like Si, Fe, Zn, Ti are limited. Mn improves strength and corrosion resistance; Mg further strengthens matrix, ideal for deep drawing and pressure-bearing parts.

Product Name：	Aluminum Coil
Diameter：	20–2600 mm; Standard (in stock): 1000 mm, 1219 mm, 1500 mm
Thickness：	0.2mm – 8.0mm (Common thin plates: 1.5 /2.0 /2.5 /3.0 /4.0 /5.0mm)
Coil inner diameter:	Φ508mm / Φ610mm
Standard：	ASTM, AISI,EN,DIN,BS,JIS,GOST,GB,etc
Main Material：	1000 series, 2000 series, 3000 series, 5000 series, 6000 series, 7000 series, 8000 series
Surface：	mill finish, flat, smooth, stucco emboss(orange peel), corrugation
Processing Method：	Bending, Welding, Decoiling, Cutting, Punching.
Special Specifications：	Available according to customer’s requirements and quantity.
Packaging：	Standard seaworthy packaging or as customers’ requirements.
Delivery Time：	Within 10-20 working days after receipt the deposit payment.
Usage：	Construction filed, Ships building industry, Decoration,Industry,
Usage：	Manufacture,Machinery and hardware fields, etc

Chemical composition (% )

Alloy	Al	Si≤	Fe≤	Cu≤	Mn	Mg	Zn≤	Ti≤	Other impurities ≤
3003	Margin	0.6	0.7	0.05~0.20	1.00~1.50	≤0.10	0.1	0.05	0.05
3004	Margin	0.3	0.7	≤0.25	1.00~1.50	0.80~1.30	0.25	0.05	0.05

3003 VS 3004

Brand Name	Introduction	Core Features
3003	Al-Mn rust-resistant aluminum alloys contain Mn as the primary alloying element, along with a small amount of Cu. Compared to 1xxx-series pure aluminum, these alloys offer higher strength, excellent plasticity, superior corrosion resistance, good weldability, and excellent deep-draw formability.	A general-purpose, cost-effective, rust-resistant aluminum alloy; used for heat exchangers, air ducts, fuel tanks, and as a base material for bottle caps.
3004	By adding Mg to the 3003 alloy composition, the resulting material achieves even greater strength than 3003, while maintaining excellent formability and corrosion resistance, as well as enhanced dent resistance.	The preferred choice for beverage can bodies; also suitable for stamping thick-gauge material, pressure-resistant casings, and roofing panels.

Applicable Export Standards

- GB/T 3190, GB/T 3880.1–3

- ASTM B209 (Aluminum Coils / Aluminum Sheets)

- EN 573-3, EN 485

- JIS H4000

- Certificate: EN 10204 3.1 MTC

Substrates for Coil Coating (Pre-painted Aluminum Coils)

Key requirements for substrates: uniform surface, resistance to cracking during bending, and excellent coating adhesion. 1xxx and 3xxx series alloys are preferred.

1. 1050 (EN AW-1050A): A pure aluminum substrate with good ductility; used for decorative and thermal insulation applications; cost-effective.

2. 1060: Pure aluminum; also suitable as a substrate for coil coating, though less common in the market than 1050.

3. 3003 (EN AW-3003): The most widely used substrate globally for pre-painted aluminum coils; offers good rust resistance and is the standard choice for roofing and curtain walls.

4. 3004: Offers higher strength than 3003; used as a substrate for pre-painted architectural roofing and tank applications.

5. 3105: A cost-effective substrate for architectural coil coating; used for roofing and suspended ceilings; frequently utilized in infrastructure projects across Africa and the Americas.

Application Scenarios

3003 Aluminum Coil

1. HVAC: Heat exchanger fins, air conditioning ducts, heat exchange plates

2. Pressure Vessels: Aluminum fuel tanks, storage tank linings, oil pipes

3. Construction: Roofing, wall cladding, downspouts, thermal insulation jacketing (anti-corrosive)

4. General Stamping: Bottle caps, signage, toolboxes, sheet metal enclosures

3004 Aluminum Coil

1. Packaging Industry: Beverage can bodies (the most classic application)

2. Construction: Aluminum-magnesium-manganese roofing panels, high-strength exterior wall panels

3. Pressure-bearing vessels, deep-drawn thick-plate components, and applications requiring dent resistance and higher strength

Payment Methods

Flexible payment terms available: T/T and L/C. For new clients, 30% advance payment for production, balance against copy of B/L. L/C is acceptable for large & regular orders to secure both parties.

Previous:5052 Work-Hardened Corrosion-Resistant Alloy

Next:3105 Al-Mn-Mg anti-rust aluminum alloy sheet

Warehousing Management

Before each batch of steel leaves the factory, a complete process inspection is strictly carried out. From chemical composition, mechanical properties to dimensional tolerance and surface quality, each item is carefully checked to ensure compliance with national standards and export regulations. At the same time, the quantity, packaging and rust prevention treatment are also verified. An original factory warranty certificate is attached, guaranteeing the quality. Before shipment, inspection photos are provided. Any non-compliant items will not be released, and the quality is fully controllable throughout the process. This ensures your overseas purchasing is safe and worry-free.

All items are visually inspected before delivery. No cracks, deformation, rust, scratches or cutting marks are allowed; edges must be smooth. Only visually sound products will be shipped.

Thickness, width, length, wall thickness, outer diameter have been measured. Straightness, curvature, torsion, diagonal tolerance all meet the corresponding tolerance requirements.

Quality inspection includes: mechanical property tests (yield strength, tensile strength), elongation rate, impact energy, hardness testing, chemical composition testing, process performance testing, etc.

Inspection according to packaging requirements: secure binding, moisture-proof film, rust-proof paper, export fumigation/fumigation-free wooden crates, shipping marks, gross weight, net weight, etc.

We will provide full reception services to support the customers' on-site inspection of the goods.

Hot Rolling Production Line

Cold rolling precision processing

Cold drawing/cold rolling line

Hot Rolling Production Line

Hot rolling production line (producing hot-rolled coils/medium-thick plates, thickness 2–60mm)

Cold rolling precision processing

(Producing ultra-thin / high-precision / shiny panels, with thickness ranging from 0.1 to 3mm, for high-end products)
Cold drawing/cold rolling line

(High-precision cold-drawn round steel, square steel, hexagonal steel, and special-shaped bars)

Cold drawing/cold rolling line

(High-precision cold-drawn round steel, square steel, hexagonal steel, and special-shaped bars)

Warehousing Management

A ten-thousand-ton standardized warehouse with grid-based zoning and system positioning enables rapid material retrieval and reduces the time spent searching for materials.

Inbound inspection: Verify the physical items against the inbound form, inspect the appearance, dimensions, and labels. Once confirmed to be correct, the materials are entered into the ERP system and processed for storage.

Logistics and Global Delivery: Self-operated fleet + contracted logistics partners; expedited service available for urgent orders.

International Shipping: Supports FOB, CIF, DDP, and other trade terms, covering 100+ countries and regions.

Process: Booking → Trucking → Customs Declaration → Loading onto Ship/Aircraft → Bill of Lading Issuance → Document Delivery → Destination Port Customs Clearance (Optional) → Last-Mile Delivery.

Provides door-to-door one-stop logistics with full tracking to ensure safe and timely arrival of goods.

After-Sales Service and Traceability: Delivery receipts, logistics information, and quality inspection documents are sent to customers within 24 hours of shipment.

Established a full product lifecycle traceability system, allowing tracking of production, quality inspection, warehousing, and transportation records.

Follow-up inspection within 72 hours of arrival; rapid response and handling of quality issues; assistance in resolving customs clearance issues for foreign trade orders.

Packaging Method