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6063-T6 vs 6061-T6 Aluminum Plate: Properties, Differences & Applications

Jan 22, 2026

6082-T6 vs 6063-T6 vs 6061-T6 Aluminum Plate: Properties, Differences & Applications

About GNEE Aluminum

GNEE is a professional Chinese supplier specializing in high-quality aluminum plates and extruded aluminum products for structural, engineering, and industrial applications worldwide. With stable supply, strict quality control, and international certifications, GNEE provides reliable aluminum solutions tailored to your project needs.

 

Introduction to 6000 Series Aluminum Plates

Among the 6000 series alloys, 6082-T6, 6063-T6, and 6061-T6 aluminum plates are three of the most widely used grades. They share similar alloying elements-mainly magnesium and silicon-but differ in strength, machinability, formability, and typical applications. Understanding these differences helps engineers and buyers select the right aluminum plate for performance, cost, and fabrication requirements.

 

6082-T6 Aluminum Plate Overview

 

What Is 6082-T6 Aluminum Plate?

6082-T6 aluminum plate is the most common commercial structural aluminum grade in Europe and many global markets. The T6 temper indicates solution heat treatment followed by artificial aging, resulting in the highest strength among 6000 series aluminum plates.

 

6082-T6 aluminum plate is also known as:

EN AW-6082

DIN 3.2315

A96082

HE30 / H30 / H30TF

 

Applications of 6082-T6 Aluminum Plate

Due to its high strength and excellent machinability, 6082-T6 aluminum plate is widely used for:

  • Structural components
  • Load-bearing frames
  • Bridges and platforms
  • Heavy machinery parts
  • Welded aluminum structures

 

Corrosion Resistance of 6082-T6 Aluminum Plate

6082-T6 aluminum plate offers good corrosion resistance for outdoor environments. However, for marine or saltwater exposure, 5xxx series aluminum plates (5083, 5754, 5251) are more suitable.

 

Welding & Machining of 6082-T6 Aluminum Plate

Weldability: Good for welding, brazing, and soldering

Machinability: Excellent; clean chip formation makes it a preferred aluminum plate in machine shops

 

Forming Characteristics of 6082-T6 Aluminum Plate

Although sometimes described as "good for forming," 6082-T6 aluminum plate is not designed for bending. Cracking may occur, especially at sharp 90° bends. Risks can be reduced by:

  • Applying localized heat
  • Using larger bend radii
  • Avoiding severe angles
  • Bending across the grain

 

Surface Treatment of 6082-T6 Aluminum Plate

Suitable for anodizing (except clear anodizing)

Suitable for polishing

Suitable for powder coating

 

6063-T6 Aluminum Plate Comparison

Characteristics of 6063-T6 Aluminum

6063-T6 aluminum is primarily an extrusion alloy rather than a rolled aluminum plate grade. It is known for excellent surface finish and moderate strength, making it ideal for architectural applications.

 

Common designations include:
AA6063, UNS A96063, ASTM B221, ASTM B241, EN standards, and MIL specifications.

 

Typical Uses Related to Aluminum Plate Applications

While true 6063 aluminum plates are rarely produced, extruded forms are commonly used for:

  • Architectural profiles
  • Decorative structures
  • Window and door frames
  • Lightweight structural elements

 

Performance Characteristics

Corrosion resistance: Good for outdoor use

Weldability: Excellent

Machinability: Average

Formability: Better than 6082-T6 and 6061-T6, especially in T4 temper

 

Surface Finish Advantages

6063-T6 aluminum offers superior anodizing results, including:

Bright anodizing

Decorative color anodizing

Hard anodizing

6061-T6 Aluminum Plate Production Line
6061-T6 Aluminum Plate Production Line

6061-T6 Aluminum Plate Overview

What Is 6061-T6 Aluminum Plate?

6061-T6 aluminum plate is the most widely used aluminum alloy in the North American market. It is extremely similar to 6082-T6, sharing over 99% compositional similarity, and in most cases the two aluminum plates are interchangeable.

 

Equivalent standards include:
EN AW-6061, A96061, H20, 3.3214

 

Key Properties of 6061-T6 Aluminum Plate

  • Medium-high strength
  • Excellent machinability
  • Good corrosion resistance
  • Reliable weldability

Compared with 6082-T6 aluminum plate, 6061-T6 is slightly softer and less brittle, making it marginally more forgiving in fabrication.

 

Forming & Bending of 6061-T6 Aluminum Plate

Similar to 6082-T6, 6061-T6 aluminum plate is not intended for cold forming. Cracking may occur during sharp bends. Best practices include:

Applying heat before bending

Using large bend radii

Avoiding bends over 90°

Bending across grain direction

 

Surface Treatment

Suitable for anodizing (except clear anodizing)

Suitable for polishing

Suitable for powder coating

 

Chemical Composition Comparison (Aluminum Plate)

Chemical Composition of 6082 Aluminum Plate

Element Content (%)
Magnesium (Mg) 0.60 – 1.20
Silicon (Si) 0.70 – 1.30
Manganese (Mn) 0.40 – 1.00
Iron (Fe) ≤ 0.50
Copper (Cu) ≤ 0.10
Chromium (Cr) ≤ 0.25
Zinc (Zn) ≤ 0.20
Aluminum Balance

 

Chemical Composition of 6063 Aluminum

Element Content (%)
Magnesium (Mg) 0.45 – 0.90
Silicon (Si) 0.20 – 0.60
Iron (Fe) ≤ 0.35
Aluminum Balance

 

Chemical Composition of 6061 Aluminum Plate

Element Content (%)
Magnesium (Mg) 0.80 – 1.20
Silicon (Si) 0.40 – 0.80
Copper (Cu) 0.15 – 0.40
Chromium (Cr) 0.04 – 0.35
Aluminum Balance

 

Mechanical Properties of T6 Aluminum Plate

Alloy Tensile Strength (MPa) Yield Strength (MPa) Elongation (%)
6082-T6 ≥ 310 ≥ 260 ~10
6061-T6 ≥ 290 ≥ 240 ~12
6063-T6 ≥ 245 ≥ 215 ~10

 

Aluminum Plate Size Range (GNEE Supply)

Thickness (mm) Width (mm) Length (mm)
3 – 150 ≤ 2600 ≤ 12000
Custom sizes Available Available

 

How to Choose the Right Aluminum Plate

Choose 6082-T6 aluminum plate for maximum strength and structural performance

Choose 6061-T6 aluminum plate for versatility and global interchangeability

Choose 6063 aluminum when surface finish and extrusion quality are critical

 

GNEE Aluminum Plate Solutions & CTA

GNEE supplies 6082-T6, 6061-T6 aluminum plates in standard and customized sizes, with full material certification and stable lead times. Our aluminum plates are widely used in engineering, construction, transportation, and industrial manufacturing.

Contact GNEE today to get a fast quote, technical support, and customized aluminum plate solutions for your project.

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6061-T6 Aluminum Plate
6061-T6 Aluminum Plate