Description
3003 Aluminum Sheet Manufacturer & Supplier
Hongyuan Aluminum is a China-based aluminum manufacturer supplying 3003 aluminum sheets for industrial fabrication, construction, insulation cladding, chemical equipment and general manufacturing applications.
3003 aluminum is a non-heat-treatable aluminum-manganese alloy belonging to the 3xxx series. It contains approximately 1.0–1.5% manganese and offers higher strength than commercially pure aluminum grades such as 1100 while maintaining good formability and corrosion resistance.
3003 aluminum sheet is widely selected for applications requiring a practical combination of strength, workability, durability and corrosion resistance.
We support customized dimensions, tempers and processing requirements for international B2B customers.
3003 Aluminum Sheet Specifications
| Item | Specification |
|---|---|
| Product | 3003 Aluminum Sheet |
| Alloy | 3003 / AA3003 |
| Alloy Series | 3xxx Series – Aluminum-Manganese |
| Temper | O, H12, H14, H16, H18, H24 |
| Thickness | Customized according to requirements |
| Width | Customized according to requirements |
| Length | Customized according to requirements |
| Surface | Mill Finish |
| Processing | Cutting, bending, stamping and forming |
| Standard | ASTM B209/B209M, EN 485, EN 573 (as applicable) |
| Packaging | Protective paper or film, wooden pallets or cases |
| Material Certificate | According to agreed order requirements |

Exact dimensions, tolerances, tempers, applicable standards and minimum order quantities are subject to production confirmation.
3003 Aluminum Sheet Standards
3003 aluminum sheets can be supplied according to applicable material standards and agreed customer specifications.
Commonly referenced standards include:
- ASTM B209/B209M: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate.
- EN 485, EN 573: Europe standard series covering general industrial wrought aluminum and aluminum-alloy plates, sheets and strips.
For reference, see the official ASTM B209/B209M standard.
The applicable standard and edition should be confirmed before production. Chemical composition, dimensional tolerances, mechanical properties and inspection requirements must follow the agreed specifications.
Material test certificates and inspection documents can be arranged according to agreed order requirements.
3003 Aluminum Chemical Composition
Typical chemical composition limits of AA3003 aluminum, expressed as weight percentage:
| Element | Content (%) |
|---|---|
| Aluminum (Al) | Remainder |
| Manganese (Mn) | 1.00–1.50 |
| Copper (Cu) | 0.05–0.20 |
| Silicon (Si) | ≤0.60 |
| Iron (Fe) | ≤0.70 |
| Zinc (Zn) | ≤0.10 |
| Other Elements – Each | ≤0.05 |
| Other Elements – Total | ≤0.15 |
Chemical composition requirements should be checked against the applicable material standard and purchase specifications.
Key Features of 3003 Aluminum Sheet
1. Good Corrosion Resistance
3003 aluminum offers good resistance to corrosion in many atmospheric and industrial environments, making it suitable for general outdoor and industrial applications.
2. Higher Strength Than Pure Aluminum
The addition of manganese increases strength compared with commercially pure aluminum grades such as 1100.
3003 provides a useful balance between strength and formability for general fabrication.
3. Excellent Formability
3003 aluminum sheets can be bent, stamped, rolled and formed into different shapes, particularly when supplied in suitable softer tempers.
4. Good Weldability
3003 aluminum offers good weldability using appropriate welding methods and procedures, making it useful for fabricated components.
5. Non-Heat-Treatable Alloy
3003 aluminum is strengthened primarily through cold working rather than precipitation heat treatment.
3003 Aluminum Sheet Applications
3003 aluminum sheets are commonly used in:
- Sheet metal fabrication and stamped components
- Building cladding and roofing components
- Industrial insulation jacketing
- HVAC ductwork and equipment housings
- Chemical processing equipment
- Storage tanks and fabricated containers
- Decorative and architectural panels
- General industrial forming and fabrication

Final material selection should consider operating conditions, required strength, corrosion exposure and applicable industry standards.
Common Tempers of 3003 Aluminum Sheet
| Temper | Characteristics | Typical Applications |
|---|---|---|
| O | Annealed, soft, excellent formability | Deep drawing and complex forming |
| H12 | Quarter-hard | Light fabrication and bending |
| H14 | Half-hard | General sheet metal fabrication |
| H16 | Three-quarter-hard | Components requiring increased rigidity |
| H18 | Full-hard | Relatively rigid sheet components |
| H24 | Strain-hardened and partially annealed, half-hard | Insulation jacketing and general fabrication |
The appropriate temper depends on thickness, forming requirements and the specified mechanical properties.
3003 Aluminum Sheet vs 1100 Aluminum Sheet
3003 and 1100 aluminum sheets are both non-heat-treatable alloys with good corrosion resistance and formability.
However, 3003 contains manganese and provides higher strength than 1100.
| Property | 3003 Aluminum Sheet | 1100 Aluminum Sheet |
|---|---|---|
| Alloy Series | 3xxx | 1xxx |
| Main Alloying Element | Manganese | Commercially pure aluminum |
| Strength | Higher | Lower |
| Formability | Good to excellent | Excellent |
| Corrosion Resistance | Good | Good |
| Typical Applications | Cladding, insulation, industrial fabrication | Stamping, forming, general fabrication |
3003 is often preferred when additional strength is required while maintaining good formability.
1100 may be preferred when high aluminum purity and maximum formability are more important.
How to Choose the Right 3003 Aluminum Sheet
When requesting a quotation, please provide:
- Alloy and temper
- Thickness, width and length
- Required dimensional tolerances
- Applicable material standard
- Surface finish
- Order quantity
- Final application
- Delivery destination
Our team can review the specifications and provide a quotation based on your requirements.
Custom 3003 Aluminum Sheets
Hongyuan Aluminum supports customized 3003 aluminum sheet requirements for industrial manufacturers, building material processors and distributors.
Available options may include different dimensions, tempers, cutting requirements, surface protection and export packaging arrangements.
All specifications are subject to technical review and production confirmation.
3003 Aluminum Sheet Production & Processing
3003 aluminum sheets are manufactured through rolling and finishing processes to achieve the required thickness, dimensions and surface condition.
Depending on the order requirements, processing may include:
- Rolling and thickness control
- Leveling and flatness adjustment
- Cutting to required dimensions
- Surface inspection
- Dimensional inspection
- Protective packaging

Production routes and processing requirements are confirmed according to customer specifications.
Quality Inspection
Quality inspection of 3003 aluminum sheets may include:
- Chemical composition verification
- Thickness, width and length measurements
- Surface quality inspection
- Flatness and dimensional tolerance checks
- Tensile strength, yield strength and elongation testing
- Packaging and product identification checks

Inspection methods and acceptance criteria are determined according to applicable standards and agreed customer requirements.
Aluminum Sheet Packaging & Shipping
3003 aluminum sheets can be packed using protective paper or film, wooden pallets or cases, and suitable securing materials.
Packaging arrangements are selected according to product dimensions, surface requirements and transportation conditions to help reduce damage during handling and international shipment.

Why Choose Hongyuan Aluminum?
- Manufacturer-based supply: Direct communication on material specifications and production requirements.
- Customized dimensions: Support for different sizes, tempers and processing requirements.
- Quality control: Inspection requirements agreed according to customer specifications.
- Export packaging: Suitable packaging arrangements for international transportation.
- B2B quotation support: Technical and commercial communication for industrial buyers.
Frequently Asked Questions
What is 3003 aluminum sheet?
3003 aluminum sheet is a non-heat-treatable aluminum-manganese alloy offering good corrosion resistance, formability and higher strength than commercially pure aluminum grades such as 1100.
What standards apply to 3003 aluminum sheet?
ASTM B209/B209M and EN 485, EN 573 are commonly referenced standards for aluminum sheet and plate products. The applicable standard and edition depend on the purchase agreement.
What is the difference between 3003 and 1100 aluminum sheet?
3003 contains manganese and offers higher strength than 1100. Both have good corrosion resistance and formability, but 1100 contains a higher percentage of aluminum.
Is 3003 aluminum sheet suitable for bending?
Yes. 3003 aluminum offers good formability, especially in O and suitable H-series tempers. The appropriate temper depends on thickness and bending requirements.
Can 3003 aluminum sheet be welded?
Yes. 3003 aluminum generally offers good weldability when suitable welding methods and procedures are used.
Can you supply customized dimensions?
Yes. Please provide the required thickness, width, length, temper and quantity for production confirmation.
Can you provide material test certificates?
Material certificates can be arranged according to the agreed standard and order requirements.
Request a Quote for 3003 Aluminum Sheet
Looking for a reliable 3003 aluminum sheet manufacturer in China?
Contact Hongyuan Aluminum for customized sizes, technical support and factory-direct quotations.
Why Choose Hongyuan Aluminum?
Hongyuan Aluminum supplies 3003 aluminum sheet for construction, HVAC, manufacturing and industrial applications.
Customized temper, thickness, width, length, surface finish, processing and export packaging are available to meet different project requirements.
Our team can also assist with material selection, production, inspection, packaging and international shipment.
Request a Quote for 3003 Aluminum Sheet ? Contact us now and send us your required temper, thickness, width, length, quantity, application and destination for a customized quotation.











