What Is an Aluminum Plate?
An aluminum plate is a flat, rolled product with a thickness typically above 6 mm (0.25 inches), used in a wide range of structural, aerospace, transportation, and industrial applications. Known for its lightweight, corrosion resistance, high strength, and excellent machinability, aluminum plate is one of the most versatile and in-demand non-ferrous materials in modern industry.
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Common Aluminum Plate Grades
| Grade | Characteristics | Typical Applications |
|---|---|---|
| 1050 / 1060 | Commercially pure, high conductivity | Electrical, chemical equipment |
| 3003 | Moderate strength, excellent corrosion resistance | Roofing, decorative, cookware |
| 5052 | High fatigue strength, excellent weldability | Marine, transportation, tanks |
| 5083 | Exceptional corrosion resistance in saltwater | Marine, cryogenic tanks |
| 6061 | High strength, excellent machinability | Aerospace, automotive, structural |
| 7075 | Ultra-high strength, limited weldability | Aerospace, tooling, high-stress components |
Common Tempers (Heat Treatment)
| Temper | Meaning | Characteristics |
|---|---|---|
| O | Annealed | Soft, ductile, formable |
| H32 / H34 | Strain-hardened | Increased strength through cold working |
| T6 | Solution heat-treated & artificially aged | High strength, excellent machinability |
| T651 | Stress-relieved after T6 | Reduced residual stress for machining |
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Product Packaging
Adopting a professional industrial packaging solution that is moisture-proof and scratch resistant, each batch of steel is tied and fixed with customized wooden frames/steel strips, combined with anti rust coatings and cushioning pads to ensure zero damage during transportation. Clear product model, batch number, and storage identification on the outer packaging, supporting customized enterprise logos and information labels. Environmentally friendly and recyclable packaging materials practice green concepts, reducing transportation and disassembly costs.
Dimensions & Tolerances
✅ Thickness Range
6 mm – 300 mm (0.25 in – 12 in)
✅ Width Range
1000 mm – 2500 mm (39.37 in – 98.42 in)
✅ Length
2000 mm – 6000 mm standard (custom available)
✅ Tolerance (As per ASTM B209)
| Thickness | Tolerance |
|---|---|
| < 12.5 mm | ±0.25 mm |
| 12.5–25 mm | ±0.40 mm |
| 25–50 mm | ±0.60 mm |
| > 50 mm | ±0.80 mm |
Surface Finishes
| Finish | Description |
|---|---|
| Mill Finish | Raw finish from the rolling mill |
| Brushed Finish | Decorative surface with linear texture |
| Anodized | Electrochemical process to improve corrosion resistance |
| Polished | Reflective, mirror-like surface |
| Coated | Powder-coated or painted for protection and color |
Manufacturing Process
1. Casting
Molten aluminum is cast into large rectangular slabs called ingots.
2. Preheating
Ingots are heated to improve workability before rolling.
3. Hot Rolling
Involves rolling the preheated ingot through heavy rollers to reach the desired thickness.
4. Cold Rolling (optional)
Further reduces thickness and improves surface finish and mechanical properties.
5. Heat Treatment
Applies solution treatment and aging (e.g., T6 or T651) for enhanced strength.
6. Finishing & Cutting
Final trimming, cutting to length, and optional surface treatments.
Comparison: Aluminum Plate vs. Aluminum Sheet
| Property | Aluminum Plate | Aluminum Sheet |
|---|---|---|
| Thickness | > 6 mm | < 6 mm |
| Applications | Structural, heavy-duty | Lightweight, formable |
| Strength | Higher | Lower |
| Common Grades | 6061, 5083, 7075 | 3003, 5052 |
| Weight | Heavier | Lighter |
| Cost | Higher | Lower |
Applications of Aluminum Plate
Construction & Architecture
Curtain walls
Roofing sheets
Panels and facades
Decorative cladding
Transportation & Automotive
Chassis and truck bodies
Railway components
Trailer flooring
Fuel tanks
Quality Assurance & Certifications
We offer aluminum plates that comply with:
ASTM B209 / B928
EN 485 / EN 573 / EN 1386
JIS H4000
ISO 9001, SGS, TUV, BV certified manufacturing
MTC (Mill Test Certificate) with each batch
Technical Specification Table
| Item | Specification |
|---|---|
| Product Name | Aluminum Plate |
| Available Grades | 1050, 1060, 3003, 5052, 5083, 6061, 7075 |
| Thickness Range | 6 mm – 300 mm |
| Width Range | 1000 mm – 2500 mm |
| Length Range | 2000 mm – 6000 mm (customizable) |
| Standard | ASTM B209, EN485, JIS H4000 |
| Temper | O, H32, H34, T6, T651 |
| Surface Finish | Mill, Anodized, Brushed, Polished |
| MOQ | 1 Ton |
| Delivery Time | 7–25 Days (based on quantity) |
| Packaging | Standard export packaging |
| Certification | ISO, SGS, TUV, MTC provided |
Frequently Asked Questions (FAQs)
Q1: What’s the difference between aluminum plate and sheet?
The main difference is thickness: aluminum plate is thicker than 6 mm, used for heavy-duty applications, while aluminum sheet is thinner and more formable.
Q2: Can aluminum plate be welded?
Yes. Most aluminum alloys like 5052 and 6061 have excellent weldability. Proper filler metals and techniques are required for optimal results.
Q3: Is aluminum plate corrosion-resistant?
Yes. Especially marine-grade alloys like 5052 and 5083 offer outstanding resistance to saltwater and chemical environments.
Q4: How is aluminum plate priced?
Price is typically based on:
Alloy and temper
Thickness and size
Current LME aluminum prices
Quantity and surface treatment
Q5: Do you offer custom-cut sizes?
Absolutely. We offer cut-to-size aluminum plates as per client drawings or requirements with tight tolerances.
Why Global Clients Choose Us?
Henan Gengfei Industrial Co., Ltd. is China’s leading supplier of steel and other metal products. Our company is dedicated to providing its customers with the quick quotes, superior quality products, competitive prices and fastest possible deliveries.
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Looking for a reliable supplier of aluminum bars in various shapes and alloys? Contact us for technical consultation, pricing, and delivery options. We provide OEM, bulk orders, and international shipping.
