NHÔM Thông số kỹ thuật A6061 - Series 6xxx

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SPECIFICATIONS

Commercial

6061

 EN /ASTM

6061/AA6061

Aluminium alloy 6061 is a medium to high strength heat-treatable alloy with a strength higher than 6005A. It has very good corrosion resistance and very good weldability although reduced strength in the weld zone. It has medium fatigue strength. It has good cold formability in the temper T4, but limited formability in T6 temper. Not suitable for very complex cross sections.

Applications

Alloy 6061 is typically used for heavy duty structures in:

~ Rail coaches

~ Truck frames

~ Ship building

~ Bridges and Military bridges

~ Aerospace applications including helicopter rotor skins

~ Tube

~ Pylons and Towers

~ Transport

~ Boilermaking

~ Motorboats

~ Rivets

CHEMICAL COMPOSITION

BS EN 573-3:2009       

Alloy 6061

   

Element

% Present

Magnesium (Mg)      

0.80 - 1.20 

Silicon (Si)

0.40 - 0.80

Iron (Fe)

0.0 - 0.70

Copper (Cu)

0.15 - 0.40

Chromium (Cr)

0.04 - 0.35

Zinc (Zn)

0.0 - 0.25

 Titanium (Ti)

0.0 - 0.15

 Manganese (Mn)

0.0 - 0.15

Others (Total)

0.0 - 0.15

Other (Each)

0.0 - 0.05

Aluminium (Al)

Balance

 

 

 

TEMPER TYPES

The most common temper for 6061 aluminium is:

  • T6 - Solution heat treated and artificially age

 

SUPPLIED FORMS

Alloy 6061 is typically supplied as

  • Extrusions

 

GENERIC PHYSICAL PROPERTIES

Property

Value

 Density    

2.70 g/cm³

Melting Point

650 °C

Thermal Expansion

23.4 x10-6 /K

Modulus of Elasticity

70 GPa

 Thermal Conductivity

166 W/m.K

Electrical Resistivity

0.040 x10-6 Ω .m

 

MECHANICAL PROPERTIES

BS EN 755-2:2008

 

Extrusions

 

Up to 200mm Dia. & A/F, 5mm WT for Tube and Prof

   

Property

 Value

 Proof Stress

240 Min MPa

Tensile Strength 

260 Min MPa

Hardness Brinell

95 HB

 

WELDABILITY

Weldability – Gas: Good 

Weldability – Arc: Very Good

Brazability: Good

Solderability: Good