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Chinese Standard 3A21 Aluminum Alloy Plate with High Corrosion Resistance Superior Formability and Lightweight for Engineering
Brand Name:
Factory Direct Supply
Model Number:
3A21
Place of Origin:
Other
Certification:
ISO 9001
Minimum Order Quantity:
1
Price:
negotiable
Supply Ability:
Adequate production
Product Details
| Product Name: | 3A21 Aluminum Alloy Plate | Standard: | ASTM |
|---|---|---|---|
| Color: | Customized Color | Shape: | Square |
| Sample: | Avaiable | Material: | Aluminum Alloy |
| Head Code: | Square | Advantage: | High Corrosion Resistance |
Product Description
Chinese Standard 3000 Series 3A21 Aluminum Alloy Plate For Engineering And Manufacturing
Chinese Standard 3000 Series 3A21 aluminum alloy plate (also known as LF21) is a high-performance Al-Mn based anti-rust aluminum compliant with GB/T 3190-2020 standards, equivalent to international grade 3003. As the most widely used anti-rust aluminum in the 3xxx series, it features a balanced combination of excellent corrosion resistance, superior formability, reliable weldability and moderate strength, making it a preferred material for engineering and manufacturing projects with strict requirements for lightweight and durability.
| Product Name | 3A21 Aluminum Alloy Plate | Keyword | Aluminum Sheet 2.0mm Thick |
|---|---|---|---|
| Technique | Cold Rolled | Certification | ISO 9001 |
| Standard | ASTM | Grade | 3000 Series |
| Type | Plate | Application | Decoration, Automotive Field, Marine industry |
| Delivery Time | 8 ~ 14 days | Material | 3A21 |
| Size | Customized | Customized support | OEM, ODM |
| Model Number | 3A21 | Shape | Square |
| Place of Origin | Other | Advantage | High Corrosion Resistance |
| Material Status | Large stock or fast new production | Package | Standard Package |
| Processing Service | Bending, Decoiling, Welding, Punching, Cutting | Payment | T/T 30% Deposit + 70% Advance |
Key Features & Advantages
- Excellent Corrosion Resistance: The dense oxide film naturally formed on the surface provides strong resistance to atmospheric, freshwater, seawater, organic acids and neutral salt solutions, ideal for humid and corrosive working environments.
- Superior Processing Performance:
- Formability: High plasticity in O-state (annealed), suitable for deep drawing, bending and stamping to create complex-shaped components.
- Weldability: Excellent compatibility with argon arc welding and resistance welding, ensuring firm and reliable welded joints.
- Lightweight: Density of 2.7g/cm³, approximately 1/3 of steel, effectively reducing structural weight and transportation costs.
- Moderate & Reliable Mechanical Properties:
- Tensile Strength: 120-160 MPa
- Yield Strength: ≥85 MPa
- Elongation: ≥20% (O-state)
- Cost-Effective & Eco-Friendly: Lower cost than heat-treatable aluminum alloys; 100% recyclable, aligning with green manufacturing and low-carbon development trends.
Common Grades & States
- O (Annealed): Softest state, optimal ductility for complex forming.
- H14/H24 (Half-Hard): Balanced strength and ductility for general structural use.
- H18/H28 (Full-Hard): Highest strength for load-bearing components.
- H112: Suitable for hot-formed parts.
Wide Applications in Engineering & Manufacturing
- Transportation: Automotive fuel tanks, oil pipelines, ship storage tanks, deck components.
- Chemical Industry: Storage tanks, reaction vessels, corrosion-resistant pipelines, heat exchangers.
- Construction & Decoration: Corrugated roof panels, anti-rust wall panels, curtain wall components.
- General Manufacturing: Kitchenware, food processing equipment, ventilation ducts, low-load rivets.
- Energy & Electrical: Radiators, transformer casings, battery enclosures.
Specifications & Customization
Available Specifications
- Thickness: 0.1mm - 120mm
- Width: 100mm - 2500mm
- Length: 500mm - 6000mm or customized
- Surface Treatment: Mill finish, polished, brushed, coated
- Custom Service: Tailored sizes, states and surface treatments available
Quality Assurance
Our 3A21 aluminum alloy plates are strictly produced in accordance with Chinese GB standards, with complete quality certificates (ISO, SGS) and full-process quality control to ensure compliance with international standards and customer requirements.
Why Choose Our 3A21 Aluminum Alloy Plates?
- Standard Compliance: 100% meets Chinese GB/T 3190 standards.
- Stable Quality: Precise component control and advanced production technology.
- Versatile Performance: Balanced corrosion resistance, formability and strength.
- Custom Solutions: Professional technical support and tailored services.
- Competitive Price: Factory direct sales with reliable quality assurance.
Ideal for engineering and manufacturing projects requiring lightweight, corrosion-resistant and cost-effective aluminum materials!
Product Highlights
3A21 aluminum alloy plate offers excellent corrosion resistance, superior formability, and reliable weldability. ASTM standard with ISO 9001 certification. Custom sizes and OEM/ODM support available for engineering applications.
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