ALUMINIUM ALLOY

Aluminium Alloy 6061

Aluminium Alloy 6061 is listed in the ALUMINIUM ALLOY material family. The reference data below should be checked against the governing product specification, product form and delivery condition before selection or certification.

Alloy 6061
MATERIAL INTRODUCTION

Aluminium Alloy 6061

The reference chemistry table for Aluminium Alloy 6061 lists Aluminium (Al): Remainder; Magnesium (Mg): 0.8 – 1.2%; Silicon (Si): 0.4 – 0.8%; Copper (Cu): 0.15 – 0.40%. Confirm exact limits and analysis tolerances against the governing standard and product form.

The mechanical-property table for Aluminium Alloy 6061 lists Tensile Strength: 125 – 310 MPa; Yield Strength: 55 – 276 MPa; Elongation: 8 – 25 %; Hardness: Approx. 30 – 95 HB. These are reference entries; supplied condition, dimensions, test method and governing specification control the requirements, and the figures are not design allowables.

Werkstoff / EN cross-reference for Aluminium Alloy 6061: 3.3211. This comparison does not guarantee interchangeability; confirm chemistry, product form and condition against the governing specification.

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TECHNICAL INFORMATION

Material Identification

Standard identification and material designation information for Aluminium Alloy 6061.

Material Aluminium Alloy 6061
UNS Number A96061
Werkstoff Number 3.3211
Material Type Heat-Treatable Al-Mg-Si Alloy
MATERIAL PROPERTIES

Chemical Composition

The reference chemistry table lists Aluminium (Al): Remainder; Magnesium (Mg): 0.8 – 1.2%; Silicon (Si): 0.4 – 0.8%; Copper (Cu): 0.15 – 0.40%. Confirm the governing standard, product analysis tolerances and product form before ordering.

Element Symbol Composition
Aluminium Al Remainder
Magnesium Mg 0.8 – 1.2%
Silicon Si 0.4 – 0.8%
Copper Cu 0.15 – 0.40%
Iron Fe 0.7% Max
Chromium Cr 0.04 – 0.35%
Manganese Mn 0.15% Max
Zinc Zn 0.25% Max
Other Elements — Limited according to applicable specification
PERFORMANCE DATA

Mechanical Properties

The table reports Tensile Strength: 125 – 310 MPa; Yield Strength: 55 – 276 MPa; Elongation: 8 – 25 %; Hardness: Approx. 30 – 95 HB as reference data for Aluminium Alloy 6061. Actual requirements depend on condition, dimensions, test method and specification; these values are not design allowables.

Property Value Unit
Tensile Strength 125 – 310 MPa
Yield Strength 55 – 276 MPa
Elongation 8 – 25 %
Hardness Approx. 30 – 95 HB
MATERIAL DATA

Physical Properties

Density Approx. 2.70 g/cm³
Elastic Modulus Approx. 69 GPa
Thermal Conductivity Approx. 167 W/m·K
Specific Heat Approx. 896 J/kg·K
Melting Range Approx. 582 – 652°C
WHY SELECT THIS MATERIAL

Material Characteristics

Aluminium Alloy 6061 is a versatile heat-treatable aluminium-magnesium-silicon alloy combining good strength, corrosion resistance, machinability and weldability.

01

Balanced Strength

Provides a useful combination of strength and low density.

02

Good Corrosion Resistance

Offers good general corrosion resistance for many engineering environments.

03

Good Weldability

Widely used for welded and fabricated assemblies.

04

Machinability

Machines well in common tempers and product forms.

Aluminium Alloy 6061 Bolting Products

INDUSTRIAL USE

Typical Applications

Aluminium Alloy 6061 is selected for applications that match its specific strength, corrosion, forming, machining and service characteristics.

01

Structural Frames

Used for frames, supports and general structures.

02

Automotive & Transport

Applied to chassis, brackets and transport components.

03

Marine Equipment

Used for many marine and outdoor fabricated parts.

04

Machined Components

Suitable for precision parts where moderate-to-high strength is required.

ENGINEERING GUIDE

Engineering Considerations

Temper Selection

T4, T6 and other tempers have substantially different mechanical properties.

Welded Strength

Design around weld zones should account for heat-affected-zone softening.

Surface Finish

Anodizing and other finishes can be considered where surface durability is required.

COMMON QUESTIONS

Frequently Asked Questions

What is the Werkstoff number for Aluminium Alloy 6061?

The commonly listed Werkstoff / EN cross-reference for Aluminium Alloy 6061 is 3.3211. Treat this as a grade comparison, not a guarantee of interchangeability. Verify chemistry, product form, condition and governing specification against the supplier certificate before substitution.

Is Aluminium Alloy 6061 heat treatable?

Yes. 6061 is a precipitation-hardening aluminium alloy.

Is Aluminium Alloy 6061 corrosion resistant?

Yes. It offers good general corrosion resistance.

Where is Aluminium Alloy 6061 used?

Typical uses include structural frames, transport components, marine equipment and machined parts.

ENGINEERING SUPPORT

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