Alloy 6063

Properties and Specifications

Chemical Composition % (1)
Alloy
Al
Si
Fe
Cu
Mn
Mg
Cr
Zn
Ti

Others
Each Total

6063
Rem
0.20-0.6
0.35
0.10
0.10
0.45-0.9
0.10
0.10
0.10
0.05
0.15

Mechanical Property Compliance
or Rating
(2)
Typical Mechanical Properties, Characteristics and Applications
 
Size or Thickness (3)
Tensile Strength
(MPa)
(5)
Tensile Strength
(MPa)
     
Temper
Over
mm
Up to
mm
UTS
(min)
Yield
(min)
(4)
Elong. %
(min)
UTS
Yield
Elong %
Shear
(MPa)
Hardness
(Hv)
F
 
200
...
...
...
100
...
20
...
45
T1
 
12
115
60
12
125
65
20
...
50
 
12
25
110
55
10
120
60
20
...
50
T4
 
150
130
70
12
140
75
20
...
50
T5
 
12
150
110
8
160
120
12
117
65
 
12
25
145
105
6
155
115
10
117
65
T52   12 150-250 110 8 160 120 12 110 62
T6
 
25
205
170
8
220
185
10
152
75
 
25
150
185
160
10
200
175
12
152
75
T8
All
225
205
8
245
225
10
152
85

Modulus of Elasticity (Gpa): [All Tempers]
Tension
68.3
 
Compression
69.7
 
Resistance to Corrosion:
    General
    Compression
    Shear

(6)

A
A

Can be used in industrial and seacoast atmospheres without protection.
Workability (Cold)
C
Average
Machinability
C
Average
Weldability
    Gas
    Arc
    Resistance, Spot
    and Seam

A
A
A
Generally weldable by all commercial procedures and methods.
Brazeability
A
Generally weldable by all commercial procedures and methods.
Typical Applications   Light structural & architectural extrusions such as glazing bars and window frames, general purpose extrusions. Good surface finish, anodises well.


Notes:(1) Chemical compositions are referenced in AS/NZS 1866. Single figures are maximums.
(2) Mechanical properties and ratings for T1, T4, T5 & T6 tempers are specified in AS/NZS 1866. H81 temper is specified in AS/NZS 1867 as T81 temper. Temper F is included in BS 1474 and is given for information only.
(3) Thickness is defined as the diameter of solid rod or the wall thickness or the equivalent major solid cross section.
(4) Yield is based on 0.2% Proof Stress.
(5) Elongation is based on 50mm test parameter.
(6) Ratings A through E are relative ratings in order of merit for the hardest temper (A = Excellent E = Poor).

Consult McKechnie Aluminium Technical Services Department if further information is required.