6061 Aluminum vs 6063 Aluminum
6061 vs 6063 aluminum sheet is a common topic in the aluminum industry. Both alloys belong to the 6000 series aluminum family. They contain magnesium and silicon. Both offer good corrosion resistance, good machinability, and light weight.
But they are made for different uses.
6061 aluminum sheet is stronger.
6063 aluminum sheet has a smoother surface and better appearance.
Quick Comparison Table
| Item | 6061 Aluminum Sheet | 6063 Aluminum Sheet |
|---|---|---|
| Main Feature | High strength | Smooth finish |
| Surface Quality | Good | Excellent |
| Weldability | Very good | Very good |
| Machining | Excellent | Good |
| Corrosion Resistance | Good | Excellent |
| Common Use | Structural parts | Decorative profiles |
| Density | 2.70 g/cm³ | 2.69 g/cm³ |
| Tensile Strength | Higher | Lower |
| Extrusion Performance | Good | Excellent |
| Formability | Medium | Good |
Chemical Composition Comparison
6061 Aluminum Alloy Composition
| Element | Content (%) |
|---|---|
| Magnesium | 0.8 – 1.2 |
| Silicon | 0.4 – 0.8 |
| Copper | 0.15 – 0.4 |
| Chromium | 0.04 – 0.35 |
| Aluminum | Balance |
6063 Aluminum Alloy Composition
| Element | Content (%) |
|---|---|
| Magnesium | 0.45 – 0.9 |
| Silicon | 0.2 – 0.6 |
| Iron | ≤0.35 |
| Copper | ≤0.1 |
| Aluminum | Balance |
6061 contains more alloying elements. This is why it has higher mechanical strength.
6063 contains lower alloy content. This helps create a smoother and brighter surface.
Mechanical Property Comparison
Strength Difference
| Property | 6061-T6 | 6063-T5 |
| Tensile Strength | 290 MPa | 186 MPa |
| Yield Strength | 240 MPa | 145 MPa |
| Elongation | 8 – 10% | 10 – 12% |
| Hardness | Higher | Lower |
6061 aluminum sheet is better for load-bearing applications.
6063 aluminum sheet is better for appearance and light-duty structures.
Common Tempers of 6061 and 6063 Aluminum Sheet
6061 Temper Types
| Temper | Features |
|---|---|
| 6061-T6 | High strength |
| 6061-T651 | Stress relieved |
| 6061-O | Soft condition |
| 6061-T4 | Natural aging |
6063 Temper Types
| Temper | Features |
|---|---|
| 6063-T5 | Standard extrusion temper |
| 6063-T6 | Higher hardness |
| 6063-O | Soft and bendable |
Standard Thickness Range
6061 Aluminum Sheet Thickness
| Thickness | Common Use |
|---|---|
| 0.5mm – 1mm | Panels |
| 2mm – 3mm | Machine parts |
| 4mm – 6mm | Structural use |
| 8mm – 20mm | Heavy equipment |
6063 Aluminum Sheet Thickness
| Thickness | Common Use |
|---|---|
| 0.5mm – 1.5mm | Decorative panels |
| 2mm – 4mm | Construction |
| 5mm – 10mm | Architectural parts |
Surface Finish Comparison
6061 Aluminum Surface
6061 sheet usually has:
- Mill finish
- Brushed finish
- Anodized surface
- Sandblasted finish
The surface is practical and durable.
6063 Aluminum Surface
6063 sheet is known for a smooth appearance.
Common finishes include:
- Bright anodized finish
- Powder coating
- Polished surface
- Mirror finish
This alloy is often used in decorative aluminum products.
6061 vs 6063 Aluminum Sheet Applications
Applications
6061 sheet is widely used in industrial projects because of its strength.
Industrial Equipment
6061 aluminum sheet is used for:
- CNC machining
- Industrial frames
- Robot structures
- Automation systems
Transportation Industry
Common transportation applications include:
- Truck bodies
- Trailer panels
- Railway parts
- Marine components
Aerospace Parts
Because of its strength-to-weight ratio, 6061 aluminum sheet is used in:
- Aircraft fittings
- Aerospace brackets
- Structural supports
Mold and Tooling
6061 sheet can be machined easily. It is often used for:
- Mold bases
- Precision tools
- Fixture plates
6063 Aluminum Sheet Applications
6063 aluminum sheet is popular in architecture and decoration.
Building Decoration
6063 sheet is used for:
- Curtain wall panels
- Interior decoration
- Ceiling systems
- Aluminum partitions
Window and Door Systems
6063 alloy is ideal for:
- Aluminum window frames
- Sliding doors
- Architectural profiles
Furniture Industry
Applications include:
- Cabinet frames
- Decorative furniture
- Shelving systems
Solar and LED Industry
6063 aluminum is used for:
- Solar panel frames
- LED heat sinks
- Electronic housings
6061 vs 6063 Aluminum Sheet for Anodizing
| Item | 6061 | 6063 |
|---|---|---|
| Anodizing Effect | Good | Excellent |
| Color Uniformity | Medium | High |
| Decorative Appearance | Medium | Excellent |
| Surface Smoothness | Good | Better |
6063 aluminum sheet is usually preferred for anodized decorative products.
6061 aluminum sheet is preferred when strength matters more than appearance.
Weldability and Machining Comparison
6061 Aluminum Machining
6061 sheet offers:
- Easy drilling
- Good CNC performance
- Strong threads
- Stable machining
It is commonly used in mechanical processing.
6063 Aluminum Machining
6063 sheet provides:
- Smooth cutting
- Good bending
- Easy shaping
It is suitable for lightweight fabricated products.
Corrosion Resistance Comparison
Both alloys resist corrosion well.
However, 6063 aluminum sheet performs slightly better in outdoor decoration because of its smoother surface and anodizing quality.
| Environment | Better Choice |
|---|---|
| Marine use | 6061 |
| Outdoor decoration | 6063 |
| Humid conditions | Both |
| Industrial environment | 6061 |
Popular Product Types
6061 Aluminum Product Types
6061 Aluminum Plate
Used in heavy-duty structures and tooling.
6061 Aluminum Coil
Suitable for industrial fabrication.
6061 T6 Sheet
One of the most popular high-strength aluminum sheets.
6061 Anodized Sheet
Used in machinery and industrial decoration.
6063 Aluminum Product Types
6063 Decorative Sheet
Used for interior and exterior decoration.
6063 Anodized Aluminum
Common in architectural projects.
6063 Polished Sheet
Used in furniture and display systems.
6063 Extruded Panels
Suitable for lightweight structures.
Weight Comparison
| Alloy | Weight |
|---|---|
| 6061 | 2.70 g/cm³ |
| 6063 | 2.69 g/cm³ |
The weight difference is very small.
Both alloys are lightweight materials.
Price Difference
| Alloy | Market Position |
|---|---|
| 6061 | Higher price |
| 6063 | Lower price |
6061 usually costs more because of its higher strength and alloy content.
Which Aluminum Alloy Is Better?
Choose 6061 Aluminum Sheet If You Need:
- High strength
- Structural support
- Machining performance
- Heavy-duty applications
- Industrial use
Choose 6063 Aluminum Sheet If You Need:
- Better appearance
- Smooth anodizing
- Decorative projects
- Lightweight structures
- Architectural systems
6061 vs 6063 Aluminum Sheet for Different Industries
| Industry | Recommended Alloy |
|---|---|
| Aerospace | 6061 |
| Automotive | 6061 |
| Marine | 6061 |
| Building decoration | 6063 |
| Furniture | 6063 |
| Solar frame | 6063 |
| CNC machining | 6061 |
| Architectural profile | 6063 |
Available Sizes
Standard Sheet Sizes
| Width | Length |
|---|---|
| 1000mm | 2000mm |
| 1220mm | 2440mm |
| 1500mm | 3000mm |
| 2000mm | 6000mm |
Custom sizes are also available for industrial projects.
Surface Treatment Options
Common Surface Treatments
| Surface Type | 6061 | 6063 |
|---|---|---|
| Mill Finish | Yes | Yes |
| Anodized | Yes | Excellent |
| Powder Coated | Yes | Yes |
| Brushed | Yes | Yes |
| Mirror Finish | Limited | Better |
| PVDF Coating | Yes | Yes |
Packaging and Supply
Aluminum sheets are usually packed with:
- Waterproof paper
- Wooden pallets
- Plastic film
- Export standard packaging
Common supply forms include:
- Aluminum sheet
- Aluminum plate
- Aluminum coil
- Cut-to-size panels
Product Types and Specicfications
We don’t just provide one type of sheet. We offer a full range of products to fit your machines and designs.
Digital Specs for Thickness and Size
| Product Type | Thickness Range (mm) | Standard Width (mm) | Standard Length (mm) |
|---|---|---|---|
| Thin Sheet | 0.5 mm – 3.0 mm | 1000 / 1219 | 2000 / 2438 |
| Medium Plate | 3.1 mm – 10.0 mm | 1250 / 1500 | 2500 / 3000 |
| Heavy Plate | 10.1 mm – 200 mm | Up to 2500 | Up to 6000 |
Available Surface Finishes
- Mill Finish: The standard surface directly from the rolling mill.
- Anodized: A hard, protective layer that can be colored (best for 6063).
- Brushed: A textured finish for a high-end “metal” look.
- PVC Protected: A plastic film to prevent scratches during your manufacturing process.
Why Choose Our Factory? Trust, Speed, and Accuracy
In a competitive market, you need a supplier that acts as a partner. Here is why we have been a trusted leader for years.
Accurate Production
We use digital rolling mills. This means the thickness of your 6061 vs 6063 aluminum sheet is always consistent. We keep tolerances within ±0.02 mm. You will not get “thin” sheets that fail under pressure.
Rapid Delivery Cycles
We understand that your project cannot wait.
- In-Stock Sizes: We can ship within 3−5 days.
- Custom Cutting: Our high-speed laser and saw machines can process your specific sizes in 7−10 days.
Long-term Experience and Trust
We have worked with customers in over 40 countries for more than 15 years. We know the international standards for ASTM, EN, and JIS. When you buy from us, you get a certificate of quality for every batch.
5.4 Reasonable and Fair Pricing
We use a transparent pricing model. We follow the LME (London Metal Exchange) prices and add a fair manufacturing fee.
Why Many Buyers Compare 6061 and 6063 Aluminum Sheet
Many customers compare these alloys because they are both versatile materials.
6061 is more suitable for engineering.
6063 is more suitable for decoration.
The right choice depends on:
- Project budget
- Strength requirement
- Surface appearance
- Processing method
- Outdoor or indoor use
FAQ
Is 6061 stronger than 6063 aluminum?
Yes. 6061 aluminum sheet has much higher strength than 6063.
Is 6063 better for anodizing?
Yes. 6063 offers a smoother anodized surface.
Which alloy is easier to machine?
6061 aluminum sheet is easier for CNC machining.
Which alloy is better for architecture?
6063 aluminum sheet is widely used in architectural systems.
Can both alloys be welded?
Yes. Both 6061 and 6063 have good weldability.
How to Choose: 6061 vs 6063?
Still not sure? Ask yourself these three questions:
1. Does it need to hold a lot of weight?
If yes, choose 6061. It has almost double the yield strength of 6063.
2. Does it need to look perfect?
If you are making a product that people will touch or look at closely (like a window frame or a phone case), choose 6063. It takes paint and anodizing much better.
3. Will you be welding it?
Both are great for welding. However, 6061 is more common for structural welds, while 6063 is used for smaller, decorative welds.
6061 vs 6063 Aluminum Sheet: What Is the Difference?
6061 vs 6063 aluminum sheet is mainly a comparison between strength and appearance.
The 6061 aluminum sheet is stronger and better for industrial structures.
6063 aluminum sheet has a smoother finish and is better for decorative applications.
Both alloys are widely used in modern manufacturing, construction, transportation, and architectural projects.
Choosing the correct aluminum alloy helps improve product quality, reduce cost, and increase performance.
AQ: Common Questions about 6061 vs 6063
Q1: Is 6061 more expensive than 6063?
Usually, the price is very similar. 6061 might be slightly higher because of the extra alloying elements like copper and chromium.
Q2: Can I use 6061 for anodizing?
Yes, you can. However, the color might not be as vibrant or uniform as it would be on 6063.
Q3: Which temper should I choose?
For most industrial uses, T6 is the standard. If you need to do extreme bending, you might want to look at O (annealed) or T4 tempers.
Q4: What is the maximum thickness you can provide?
We can provide plates up to 300 mm thick in 6061, though most customers use sheets between 1.0 mm and 10 mm.