AA 6262 T6/T9: Premium Free-Machining Aluminum Alloy

AA 6262 is a free-machining alloy that offers users outstanding mechanical strength and good resistance to corrosion. Aluminum AA 6262 is heat treatable and due to the addition of bismuth is easily machinable. Anodizing raises the levels of corrosion resistance and with high-speed tooling you can achieve a smooth finish. Welding of Aluminum AA 6262 is achieved through gas, arc, and resistance methods. The most common tempers of AA 6262 are T6 and T9.

Properties

General

Property	Value	Comment
Density	2.7 g/cm³	Typical for Wrought 6000 Series Aluminium

Mechanical

Property	Value	Condition	Related Standards	Comment
Elastic modulus	70.0 GPa			Typical for Wrought 6000 Series Aluminium
Plane-Strain Fracture Toughnes	22.0 - 35.0 MPa·√m			Typical for Wrought 6000 Series Aluminium
Poisson's ratio	0.33 [-]			Typical for Wrought 6000 Series Aluminium
Shear modulus	26.0 - 26.5 GPa			Typical for Wrought 6000 Series Aluminium
Tensile strength	290.0 MPa	T62	AA Standards, ASTM B210, ASTM B483

Thermal

Property	Value	Comment
Coefficient of thermal expansion	1.6e-05 - 2.4e-05 1/K	Typical for Wrought 6000 Series Aluminium
Melting point	555.0 - 655.0 °C	Typical for Wrought 6000 Series Aluminium
Specific heat capacity	887.0 - 963.0 J/(kg·K)	Typical for Wrought 6000 Series Aluminium
Thermal conductivity	170.0 - 220.0 W/(m·K)	Typical for Wrought 6000 Series Aluminium

Electrical

Property	Value	Comment
Electrical conductivity	21000000.0 - 34000000.0 S/m	Typical for Wrought 6000 Series Aluminium
Electrical resistivity	2.9e-08 - 5e-08 Ω·m	Typical for Wrought 6000 Series Aluminium

Chemical properties

Property	Value	Condition	Related Standards
Bismuth	0.4 - 0.7 %	T62	AA Standards, ASTM B210, ASTM B483
Chromium	0.04 - 0.14 %	T62	AA Standards, ASTM B210, ASTM B483
Copper	0.15 - 0.4 %	T62	AA Standards, ASTM B210, ASTM B483
Iron	0.70 %	T62	AA Standards, ASTM B210, ASTM B483
Lead	0.4 - 0.7 %	T62	AA Standards, ASTM B210, ASTM B483
Magnesium	0.8 - 1.2 %	T62	AA Standards, ASTM B210, ASTM B483
Manganese	0.15 %	T62	AA Standards, ASTM B210, ASTM B483
Silicon	0.4 - 0.8 %	T62	AA Standards, ASTM B210, ASTM B483
Titanium	0.15 %	T62	AA Standards, ASTM B210, ASTM B483
Zinc	0.25 %	T62	AA Standards, ASTM B210, ASTM B483

Technological properties

Property
Brazing	general: Lötbar mit speziellen Techniken oder bei bestimmten Anwendungen
Corrosion properties	Stress corrosion cracking: no damage during operation and laboratory tests, general: good, without protection in industrial or seawater atmosphere
General machinability	General: good to acceptable (T6, T651, T6510, T6511, T9)
Workability	general (condition): poor(T6, T651, T6510, T6511), not suitable (T9)

AA 6262 T6 – Premium Heat‑Treatable, Bismuth‑Enhanced Aluminum Alloy AA 6262 T651: High‑Strength, Easy‑Machining Aluminum Alloy

Metal