|
DESIGNATION SYSTEMS
ALLOY
This system is a four-digit numerical system in which the
first digit indicates the alloy group as follows:
|
Aluminium
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99,00 percent minimum and
greater
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1XXX
|
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Aluminium
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grouped by major alloying
elements
|
|
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Copper
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2XXX
|
|
Manganese
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3XXX
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Silicon
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4XXX
|
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Magnesium
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5XXX
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Magnesium &
Silicon
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6XXX
|
|
Zinc
|
7XXX
|
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Other
elements
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8XXX
|
|
Unused
|
9XXX
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ALUMINIUM ALLOYS
Non-heat-treatable alloys
The non-heat-treatable alloys are those in which the
mechanical properties are determined by the amount of cold work introduced (e.g. by
rolling, drawing, etc) after the last annealing operation. Usually the 1000, 3000,
4000 and 5000 alloys are non-heat-treatable.
The properties obtained by cold work are destroyed by
subsequent heating and cannot be restored except by additional cold work.
Heat-treatable alloys
The heat-treatable alloys are those in which the
mechanical properties may be improved by heat-treatment. In contrast to the
non-heat-treatable alloys the increased strength is obtained with little sacrifice of
ductility. Heat-treatable alloys have the further advantage that they can be
re-heat-treated after annealing to restore their original properties.
TEMPER DESIGNATIONS
|
CONDITION
|
DESCRIPTION
|
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M
|
As manufactured. Material which acquires
some temper from shaping processes in which there is no special control over thermal
treatment or amount of work/strain hardening.
|
|
O
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Annealed, soft. Material which is fully
annealed to obtain the lowest-strength condition and highest ductility condition.
|
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H2
H4
H6
H8
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Strain hardened. Material subjected to
the application of cold work after annealing (or hot forming), or to a combination of cold
work and partial annealing/stabilising in order to secure the specified mechanical
properties. Designations are in ascending order of tensile strength.
Note: Alloy 5251 is only available in H3, H6 and H8 tempers.
|
|
TB
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Solution heat-treated and naturally aged.
Material which receives no cold work after solution heat-treatment except as may be
required to flatten or straighten it. Properties of some alloys in this temper are
unstable.
|
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TD
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Solution heat-treated, cold-worked and
naturally aged.
|
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TE
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Cooled from an elevated temperature shaping
process and then artificially aged (precipitation-treated)
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TF
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Solution heat-treated and then artificially
aged.
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TH
|
Solution heat-treated, cold-worked and then
artificially aged.
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In order to specify a material the temper designation should be shown as a suffix to
the alloy designation e.g. 1200-M, 6063-TF.
CHEMICAL COMPOSITION
|
A.A. ALLOY
DESIGNATION
|
CHEMICAL
COMPOSITION
|
|
Al min.
|
Cu
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Mg
|
Si
|
Fe
|
Mn
|
Zn
|
Ti
|
Cr
|
|
1200
|
99.0
|
0.05
|
-
|
Fe + Si 1.0
|
0.05
|
0.1
|
0.05
|
-
|
|
5083
|
BAL.
|
0.1
|
4.0 - 4.9
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0.4
|
0.4
|
0.4 - 1.0
|
0.25
|
0.15
|
0.05 - 0.25
|
|
5251
|
BAL.
|
0.15
|
1.7 - 2.4
|
0.4
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0.5
|
0.1 - 0.5
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0.15
|
0.15
|
0.15
|
|
5454
|
BAL.
|
0.1
|
2.4 - 3.0
|
0.25
|
0.4
|
0.5 - 1.0
|
0.2
|
0.2
|
0.5 - 0.2
|
|
6063
|
BAL.
|
0.1
|
0.45 - 0.9
|
0.2 - 0.6
|
0.35
|
0.1
|
0.1
|
0.1
|
0.1
|
|
6082
|
BAL.
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0.1
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0.6 - 1.2
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0.7 - 1.3
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0.5
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0.4 - 1.0
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0.2
|
0.2
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0.25
|
|
6261
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BAL.
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0.15 - 0.4
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0.7 - 1.0
|
0.4 - 0.7
|
0.4
|
0.2 - 0.35
|
0.2
|
0.1
|
0.1
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MECHANICAL PROPERTIES
|
A.A. ALLOY DESIGNATION
|
TEMPER
|
MECHANICAL PROPERTIES
|
|
0.2% P.S. (MPa)
|
T.S. (MPa)
|
% EL in 50 mm
|
|
1200
|
M
|
50
|
90
|
-
|
|
O
|
35
|
85
|
33
|
|
H4
|
105
|
125
|
8
|
|
5083
|
H2
|
250
|
340
|
15
|
|
5251
|
H3
|
180
|
210
|
10
|
|
H6
|
200
|
240
|
7
|
|
5454
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H2
|
210
|
280
|
16
|
|
H4
|
230
|
300
|
10
|
|
6063
|
TF
|
160
|
185
|
7
|
|
TB
|
70
|
130
|
14
|
|
6082
|
TF
|
270
|
310
|
7
|
|
6261
|
TF
|
240
|
280
|
7
|
TYPICAL APPLICATIONS
|
A.A. ALLOY DESIGNATION
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STOCK RANGE
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TYPICAL ALLOY APPLICATIONS
|
|
1200
|
PLATE
|
HOLLOWARE, FOIL, ARCHITECTURE,
POWER LINES, PANELLING
|
|
COIL / SHEET
|
|
COIL / SHEET PLATE TREADPLATE
|
|
5083
|
PLATE
|
EXTRUSIONS, TRUCK BODIES, RAILWAY WAGONS
|
|
5251
|
PLATE
|
PANELLING AND PRESSINGS,
CONTAINERS, MINE CAGES, MARINE ATMOSPHERES
|
|
SHEET PLATE
|
|
5454
|
TREADPLATE
|
ROAD AND RAIL TRANSPORT, PRESSURE
VESSELS AT ELEVATED TEMPERATURES
|
|
TREADPLATE
|
|
6063
|
SECTIONS TUBE (Square & Round)
|
EXTRUSIONS, WINDOW FRAMES,
IRRIGATION TUBING
|
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SECTIONS
|
|
6082
|
PLATE ROUND BAR
|
BRIDGES, ROOF TRUSSES, BEER BARRELS
|
|
6261
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SECTIONS TUBE (Square & Round)
BAR STOCK
|
EXTRUSIONS, ROAD AND RAIL TRANSPORT
|
1. Single figures indicate max. content
2. Mechanical properties are
typical and should not be used for design purposes
3. The above covers items held in
stock. Other alloys, tempers and product forms available subject to enquiry.
RECOMMENDED FILLER ALLOYS FOR WELDING PARENT METAL
COMBINATIONS
|
Parent Alloy
|
6063
6082
6261
|
5454
|
5251
|
5083
|
3103
|
1050A
1200
|
|
1050A
1200
|
4043
(5356)
|
5356
|
5356
|
5656
|
4043
(5356)
|
4043
(1050A)*
|
|
3103
|
4043
(5356)
|
5356
|
5356
|
5356
|
4043
|
|
|
5083
|
5356
|
5356
|
5356
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5556A
(5183)
|
|
|
|
5251
|
5356
|
5356
|
5356
|
|
|
|
|
5454
|
5356
|
5356
(5554)*
|
|
|
|
|
|
6063
6082
6261
|
4043
(5356)*
|
|
|
|
|
|
Notes:
(1050A)* - For
corrosive conditions
(5554)*
- For Prolonged use at elevated temperatures
(5356)*
- For better colour matching, for anodising
INTERNATIONAL ALLOY DESIGNATIONS AND EQUIVALENTS
|
American Association
(A.A.)
|
Obsolete Systems
|
British Standard
|
Germany
|
France
|
Italy
|
|
1050A* 1080A*
1200 |
1S -
2S |
1B 1A
1C |
A199.5 A199.8
A199.0 |
A5 A8
A4 |
P-AP5
UNI 4507
P-AP8
UNI 4509
P-AP0
UNI 3567
|
|
3103*
4043*
4047*
|
3S
33S
-
|
N3
N21
N2
|
AlMn
AlSi5
AlSi12
|
A-M1
A-S5
A-S12
|
-
-
P-AS12
GCN
UNI 3572
|
|
5056A* 5083
5154A*
|
A56S D54S
54S
|
N6 N8
N5
|
AlMg5 AlMg4,5Mn
AlMg3
|
A-G5MC -
A-G3C
|
P-AG5
UNI 3576 P-AG3,5
UNI 3575 |
|
5183*
5251
5356*
5454
5554*
5556A*
6061
6261
|
-
M57S
-
B53S
C53S
C56S
65S
D65S
|
-
N4 N51
N52
N61
H20
- |
AlMg4,5Mn
AlMg2Mn0,3
AlMg5
AlMg2,7Mn
AlMg3
AlMg5
-
-
|
A-G5MC
A-G2M
A-G5MC
A-G2,5MC
A-G3
A-G5MC
A-GSUC
-
|
-
-
-
-
-
-
P-AG1SC
UNI 6170
|
|
6063 6082
|
50S B51S
|
H9 H30
|
AlMgSi0,5 AlMgSi1
|
A-G0,6 A-SGM0,7
|
P-AGS
UNI 3569
P-AS1G
UNI 3571
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*Welding Filler alloys
|
