Looking for reliable 3004 aluminum circle plates for your next project? You are in the right place. Our 3004 aluminum circle plates offer excellent formability, corrosion resistance, and moderate strength. They serve a wide range of industries including cookware, lighting, signage, and pressure vessels.
In this guide, we cover everything about the 3004 aluminum plate, including composition, features, applications, specifications, pricing, and why you should choose us as your trusted manufacturer.
What Are 3004 Aluminum Circle Plates?
3004 aluminum circle plates are round discs cut from 3004 aluminum sheet. The 3004 alloy belongs to the 3000 series (Al-Mn alloy family). Manganese is the primary alloying element. This gives the material higher strength than 1000 and some other 3000 series alloys, while maintaining good workability.
Manufacturers produce aluminum circle plates through hot rolling, cold rolling, and precision circle-cutting processes. The result is a flat, smooth, burr-free disc ready for deep drawing, spinning, stamping, or other forming operations.
Common related products include 3003 aluminum plate, 3005 aluminum plate, and 3004 aluminum coil. However, 3004 stands out because it offers a better balance of strength, formability, and corrosion resistance compared to 3003, making it ideal for applications that demand a bit more performance.
3004 Aluminum Composition
Understanding the 3004 aluminum composition helps you determine if this alloy suits your application. Below is the standard chemical composition of 3004 aluminum alloy per ASTM B209 / EN 573:
| Element | Content (%) |
|---|---|
| Aluminum (Al) | Balance (remainder) |
| Manganese (Mn) | 1.0 – 1.5 |
| Magnesium (Mg) | 0.8 – 1.3 |
| Iron (Fe) | ≤ 0.7 |
| Silicon (Si) | ≤ 0.30 |
| Copper (Cu) | ≤ 0.25 |
| Zinc (Zn) | ≤ 0.25 |
| Titanium (Ti) | ≤ 0.10 |
| Others (each) | ≤ 0.05 |
| Others (total) | ≤ 0.15 |
Key Points About 3004 Aluminum Composition
- Manganese (1.0–1.5%) increases strength and improves resistance to corrosion.
- Magnesium (0.8–1.3%) further boosts strength and enhances formability during deep drawing.
- The combined Mn + Mg content makes 3004 about 20% stronger than 3003 aluminum.
- Low copper content ensures good corrosion resistance in various environments.
- The composition makes 3004 aluminum non-heat-treatable. You achieve desired mechanical properties through cold working (strain hardening).
This balanced 3004 aluminum composition makes the alloy an excellent choice for forming-intensive applications where moderate strength and high corrosion resistance are essential.
3004 Aluminum Circle Plates Specifications
We supply 3004 aluminum circle plates in a wide range of sizes, thicknesses, and tempers to meet diverse customer requirements.
| Parameter | Details |
|---|---|
| Alloy | 3004 |
| Temper | O, H12, H14, H16, H18, H22, H24, H26, H32, H34 |
| Thickness | 0.3 mm – 10.0 mm |
| Diameter | 50 mm – 1200 mm (custom sizes available) |
| Surface | Mill finish, bright finish, brushed, anodized, coated |
| Standards | ASTM B209, EN 573, GB/T 3880 |
| Tolerance | Thickness ±0.02 mm, Diameter ±0.5 mm |
| Packaging | Wooden pallet, wooden case, or as customer request |
Mechanical Properties of 3004 Aluminum Sheet
| Temper | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) |
|---|---|---|---|
| O | 170 – 215 | ≥ 65 | ≥ 18 |
| H14 | 215 – 260 | ≥ 175 | ≥ 5 |
| H24 | 215 – 260 | ≥ 170 | ≥ 6 |
| H32 | 215 – 260 | ≥ 170 | ≥ 6 |
| H34 | 240 – 285 | ≥ 200 | ≥ 5 |
The O temper (fully annealed) offers the best formability. H14 and H24 tempers provide a good combination of strength and moderate formability. For deep drawing of aluminum circle plates, the O or H12 temper is usually the preferred choice.
Features and Advantages of 3004 Aluminum Circle Plates
Why do so many manufacturers and engineers choose 3004 aluminum circle plates? Here are the key features and advantages:
1. Excellent Formability
The 3004 alloy in O temper offers outstanding deep drawing and spinning performance. You can form complex shapes without cracking. This makes 3004 aluminum circle plates ideal for cookware pots, pans, and pressure vessel heads.
2. Higher Strength Than 3003
Compared to 3003 aluminum plate, 3004 provides approximately 20% higher tensile and yield strength. This means you can use thinner gauge material for the same structural performance, reducing weight and cost.
3. Superior Corrosion Resistance
The manganese and magnesium content gives 3004 aluminum excellent resistance to atmospheric corrosion, saltwater, and many chemical environments. Products made from 3004 aluminum circle plates last longer with minimal maintenance.
4. Good Weldability
You can weld 3004 aluminum sheet using standard methods including TIG, MIG, and resistance welding. The alloy responds well to all common aluminum welding techniques.
5. Excellent Surface Quality
Our 3004 aluminum circle plates feature a smooth, clean surface free from oil stains, scratches, and edge burrs. The high surface quality reduces post-processing costs and ensures a premium finished product.
6. Lightweight
Aluminum weighs only one-third of steel. Using 3004 aluminum plate reduces the overall weight of your product, which is critical in transportation, automotive, and consumer goods applications.
7. Recyclable and Eco-Friendly
Aluminum is 100% recyclable. Choosing 3004 aluminum circle plates supports sustainability goals. Recycling aluminum uses only 5% of the energy required to produce primary aluminum.
Applications of 3004 Aluminum Circle Plates
The versatile properties of 3004 aluminum circle plates make them suitable for many industries and products:
Cookware and Kitchen Utensils
This is one of the most popular applications. Manufacturers use aluminum circle plates to produce:
- Non-stick pans and frying pans
- Pressure cooker bodies and lids
- Stock pots and sauce pans
- Rice cooker inner pots
- Pizza pans and baking trays
The excellent deep drawing performance and thermal conductivity of 3004 aluminum make it a top choice for cookware production worldwide.
Lighting Industry
3004 aluminum circle plates serve as reflectors and lampshade bases. The bright surface finish and easy anodizing characteristics make the alloy popular for LED light housings and decorative lighting fixtures.
Signage and Traffic Signs
Road signs, traffic signs, and nameplate manufacturers use 3004 aluminum sheet circle blanks. The material offers excellent weather resistance and accepts printing, painting, and reflective film application.
Pressure Vessels and Tank Heads
The moderate strength and good formability of 3004 aluminum allow fabricators to produce tank ends, vessel heads, and caps through spinning or pressing operations.
Electronics and Electrical Covers
Manufacturers use thin-gauge 3004 aluminum circle plates for electronic device casings, battery caps, and electrical enclosure covers.
Automotive Parts
Fuel tank caps, hub covers, and decorative trim pieces use 3004 aluminum circles. The alloy meets the lightweight and corrosion resistance demands of the automotive industry.
Cosmetic and Pharmaceutical Packaging
Bottle caps, jar lids, and canister covers made from aluminum circle plates protect product integrity while providing an attractive appearance.
3004 Aluminum Circle Plates vs. Other Alloys
Customers often ask how 3004 aluminum plate compares to similar alloys. Here is a quick comparison:
3004 vs. 3003 Aluminum Plate
| Feature | 3004 | 3003 |
|---|---|---|
| Strength | Higher (~20% more) | Lower |
| Formability | Excellent | Excellent |
| Corrosion Resistance | Excellent | Excellent |
| Magnesium Content | 0.8–1.3% | None (or trace) |
| Typical Use | Cookware, cans, tank heads | General forming, heat exchangers |
3003 aluminum plate is softer and slightly easier to form. But when your project demands more strength without sacrificing formability, 3004 aluminum plate is the better option.
3004 vs. 3005 Aluminum Plate
3005 aluminum plate has similar strength to 3004 but slightly less magnesium. 3004 offers better deep drawing performance. For aluminum circle plates used in cookware and pressure forming, 3004 is usually preferred.
3004 vs. 1060/1100 Aluminum
1000 series alloys (like 1060 and 1100) offer higher purity and better electrical conductivity, but much lower strength. If you need circles for structural or semi-structural applications, 3004 aluminum circle plates are a much stronger choice.
3004 Aluminum Price – What Affects the Cost?
The 3004 aluminum price depends on several factors. Understanding these helps you get the best value:
1. LME (London Metal Exchange) Aluminum Price
The base aluminum price fluctuates daily on the LME. This is the foundation of all aluminum product pricing. The 3004 aluminum price moves up or down with LME trends.
2. Fabrication Cost
Converting raw aluminum ingots into 3004 aluminum sheet and then cutting into circle plates involves rolling, annealing, circle blanking, and quality inspection. Each step adds cost. Thinner gauges and tighter tolerances increase fabrication costs.
3. Alloy Premium
3004 alloy contains more alloying elements (Mn + Mg) than simpler alloys like 1050 or 1100. This results in a slightly higher alloy surcharge compared to pure aluminum grades.
4. Order Quantity
Larger orders typically enjoy lower unit prices. We offer competitive pricing tiers for bulk purchases of 3004 aluminum circle plates. Please contact us for a detailed quotation based on your specific volume.
5. Specifications and Customization
Custom diameters, non-standard thicknesses, special tempers, or surface treatments (anodizing, coating) may affect the 3004 aluminum price. Standard sizes and tempers offer the most economical pricing.
6. Shipping and Logistics
Destination, shipping method (sea freight, air freight, land transport), and packaging requirements also factor into the delivered price of aluminum circle plates.
How to Get the Best 3004 Aluminum Price?
- Request a quote with clear specifications (alloy, temper, thickness, diameter, quantity).
- Consider combining orders to reach volume discount thresholds.
- Plan ahead to allow sea freight shipping, which is more economical than air freight.
- Work directly with a manufacturer (like us) rather than a middleman to eliminate markup.
Our Manufacturing Process for 3004 Aluminum Circle Plates
We control every step to ensure top-quality 3004 aluminum circle plates:
Step 1: Raw Material Selection
We source high-purity aluminum ingots from certified smelters. Each batch comes with a mill test certificate (MTC) to verify the 3004 aluminum composition.
Step 2: Hot Rolling
We heat the aluminum slab and roll it through multiple passes to reduce thickness. Hot rolling breaks down the cast structure and improves material uniformity.
Step 3: Cold Rolling
We further reduce the 3004 aluminum sheet to the target thickness through cold rolling. This process improves surface finish and tightens thickness tolerance.
Step 4: Annealing (If Required)
For O temper circles, we perform full annealing in a controlled atmosphere furnace. This restores ductility and ensures excellent deep drawing performance.
Step 5: Circle Blanking
Our automated circle blanking lines cut precise aluminum circle plates from the sheet. We use advanced CNC punching and laser cutting machines to achieve tight diameter tolerances and clean edges.
Step 6: Surface Treatment (Optional)
Based on customer requirements, we apply surface treatments such as:
- Polishing (mirror finish)
- Brushing (hairline finish)
- Anodizing (for enhanced corrosion resistance and appearance)
- Coating (PVDF, PE, or other coatings)
Step 7: Quality Inspection
Every batch of 3004 aluminum circle plates undergoes rigorous quality checks:
- Chemical composition analysis (spectrometer)
- Mechanical property testing (tensile, hardness)
- Dimensional measurement (thickness, diameter, flatness)
- Surface quality visual inspection
- Deep drawing trial (for cookware-grade circles)
Step 8: Packaging and Shipping
We pack aluminum circle plates with interleaving paper between each disc to prevent scratching. Wooden pallets or wooden cases protect the product during transit. We ship to customers worldwide.
Quality Standards and Certifications
Our 3004 aluminum circle plates meet or exceed the following international standards:
- ASTM B209 – Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate
- EN 573-3 – Chemical Composition of Wrought Aluminum Alloys
- EN 485-2 – Mechanical Properties of Aluminum Sheet, Strip, and Plate
- GB/T 3880 – Chinese National Standard for Aluminum Sheet and Plate
- ISO 9001:2015 – Quality Management System Certification
- SGS / BV Third-Party Inspection available upon request
Each shipment includes:
- Mill Test Certificate (MTC)
- Material Safety Data Sheet (MSDS)
- Packing list and commercial invoice
- Certificate of Origin (if required)
Why Choose Us as Your 3004 Aluminum Circle Plates Supplier?
Direct Factory Price
We are a manufacturer, not a trading company. You buy 3004 aluminum circle plates directly from our factory. This eliminates middlemen and gives you the most competitive 3004 aluminum price in the market.
Large Production Capacity
Our annual production capacity exceeds 200,000 metric tons of aluminum flat products. We can fulfill both small trial orders and large-volume contracts on time.
Fast Delivery
Standard products ship within 7–15 days. We maintain ready stock of popular sizes and tempers of 3004 aluminum sheet and circles to speed up delivery.
Custom Solutions
We offer custom aluminum circle plates in non-standard sizes, special tempers, and unique surface finishes. Our engineering team works with you to find the best solution for your project.
Global Export Experience
We export 3004 aluminum circle plates to over 60 countries including the United States, Canada, Mexico, Germany, Turkey, South Korea, Japan, Saudi Arabia, Nigeria, Brazil, and Australia. Our experienced export team handles all documentation and logistics.
Dedicated Customer Service
From initial inquiry to after-sales support, our team responds quickly and professionally. We provide technical guidance on alloy selection, temper recommendation, and application optimization.
Export Packaging for Aluminum Circle Plates
Proper packaging protects 3004 aluminum circle plates during ocean freight and land transport. Our standard packaging includes:
- Interleaving paper between each aluminum circle to prevent surface scratches
- Plastic film wrapping for moisture protection
- Wooden pallet or wooden case for structural support
- Steel strapping to secure the package
- Fumigation-treated wood compliant with ISPM 15 for international shipping
- Custom marking with order number, alloy, temper, size, and quantity
We also offer vacuum packaging and containerized shipping solutions for special requirements.
Frequently Asked Questions About 3004 Aluminum Circle Plates
Q1: What is the difference between aluminum circle plates and aluminum discs?
Aluminum circle plates and aluminum discs refer to the same product – round flat pieces cut from aluminum sheet. The terms are used interchangeably in the industry. Some customers also search for “aluminum disc” or “aluminum round plate.”
Q2: What thickness of 3004 aluminum circle plates do you supply?
We supply 3004 aluminum circle plates in thicknesses from 0.3 mm to 10.0 mm. The most popular thicknesses for cookware applications are 0.5 mm to 3.0 mm.
Q3: Can you supply 3004 aluminum circle plates for non-stick cookware?
Yes. We supply circles suitable for non-stick cookware production. Our aluminum circle plates have the surface quality and mechanical properties required for coating adhesion and deep drawing.
Q4: What is your minimum order quantity (MOQ)?
Our MOQ is typically 1 metric ton for standard sizes. For custom specifications, the MOQ may vary. Please contact us for details.
Q5: Do you provide samples?
Yes. We provide free samples of 3004 aluminum circle plates for quality evaluation. You only need to cover the shipping cost.
Q6: How does 3004 aluminum plate perform in deep drawing?
3004 aluminum plate in O temper performs excellently in deep drawing. The high elongation (≥18%) and balanced composition allow deep, complex shapes without cracking. Many cookware manufacturers prefer 3004 over 3003 for its combination of strength and formability.
Q7: Can 3004 aluminum circle plates be anodized?
Yes. 3004 aluminum accepts anodizing well. Anodized 3004 aluminum circle plates gain enhanced surface hardness, corrosion resistance, and an attractive appearance.
Contact Us for 3004 Aluminum Circle Plates
Ready to order 3004 aluminum circle plates or need a custom quote? Contact our sales team today. Provide us with the following information for a fast, accurate quotation:
- Alloy: 3004
- Temper (e.g., O, H14, H24)
- Thickness (mm)
- Diameter (mm)
- Quantity (metric tons or pieces)
- Surface finish requirement
- Destination port or city
We respond to all inquiries within 24 hours. Let us be your trusted supplier of 3004 aluminum circle plates and other aluminum flat products.