AlCu4MgSi
(AU4G)
No food using.
Grade of the family "Hard" alloys.
Good mechanical characteristics. The most used in mechanics industry. Difficult weldability and anodizing.
Fields of using: mechanical engineering, specific machines.
Trade in a lot of shapes: sheet, plate, round, flat, squared bar, mechanical tube.
Produced by rolling, drawing or extrusion for the bars.
International correspondences |
Mechanical characteristics:
Properties:
|
Nominal chemical compound % (according to the standard EN 573-1): |
|
Si
|
Fe
|
Cu
|
Mn
|
Mg
|
Cr
|
Zn
|
Remarks
|
Others
|
Al
|
| Each
|
Total
|
|
0,2-0,8
|
0,7
|
3,5-4,5
|
0,4-1,0
|
0,4-1,0
|
0,1
|
0,25
|
0,25
Zr+Ti
|
0,05
|
0,15
|
Reste
|
|
Specific mechanical characteristics: |
| |
| Sheets
(according to the standard EN 485-2): |
| State |
Specified thickness (mm) |
Rm
(MPa) |
Rp0,2
(MPa) |
A
% mini |
Bending radius |
Hardness HBS |
| More than |
until |
mini |
maxi |
mini |
maxi |
A
50 |
A |
180° |
90° |
| O |
>0,4
1,5
3,0
6,0
9,0
12,5 |
1,5
3,0
6,0
9,0
12,5
25,0 |
- |
225
225
225
225
225
225 |
- |
145
145
145
145
145
145 |
12
14
13
13
13
|
12 |
0,5
e
1,0
e
|
0
e
1,0
e
1,5
e
2,5
e
4,0
e
|
55
55
55
55
55
55 |
| T4
T
451 |
>
0,4
1,5
6,0 |
1,5
6,0
12,5 |
390
390
390 |
- |
245
245
260 |
- |
- |
14
15
13 |
3,0
e
5,0
e
|
3,0
e
5,0
e
8,0
e |
110
110
111 |
| T451 |
12,5
40,0
100,0
120,0 |
40,0
100,0
120,0
150,0 |
390
385
370
350 |
- |
250
240
240
240 |
- |
- |
12
10
8
4 |
- |
- |
110
108
105
101 |
| T42 |
>0,4
3,0
12,5 |
3,0
12,5
25,0 |
390
390
390 |
- |
235
235
235 |
- |
14
15
|
12 |
- |
- |
109
109
109 |
|
Top of the page
Extruded bars (according to the standard EN 755-2): |
| State |
Sizes
mm |
Rm
(MPa) |
Rp0,2
(MPa) |
A
% mini |
A50
% mini |
| Diam
(D) |
size on flat or thickness (S) |
mini |
max |
mini |
max |
| O/H111 |
<
200 |
<200 |
- |
250 |
- |
135 |
12 |
10 |
| T4 |
<25 |
<25 |
380 |
- |
260 |
- |
12 |
10 |
| T4510 |
25
to 75 |
25
to 75 |
400 |
- |
270 |
- |
10 |
- |
| T4511 |
75
to 50
150
to 200
200
to 250 |
75
to 150
150
to 200
200
to 250 |
390
370
360 |
- |
260
240
220 |
- |
9
8
7 |
- |
|
Top of the
page
Extruded tubes (according the standard EN-755-2): |
| State |
Sizes
mm
Thickness of wall
|
Rm
(MPa) |
Rp0,2
(MPa) |
A
% mini |
A50
% mini |
| mini |
max |
mini |
max |
| O/H111 |
£
20
|
-
|
250
|
-
|
135
|
12
|
10
|
|
T4/T4510/T4511
|
£
10
10<e£75
|
380
400
|
-
-
|
260
270
|
-
-
|
12
10
|
10
8
|
|
Top of the page
Extruded sections (according to the standard EN-755-2): |
| State |
Sizes
mm
Thickness of wall
|
Rm
(MPa) |
Rp0,2
(MPa) |
A
% mini |
A50
% mini |
| mini |
max |
mini |
max |
| T4/T4510/T4511
|
£
30
|
380
|
-
|
260
|
-
|
10
|
8
|
|
Top of the
page
Drawn bars
(according to the standard EN-754-2): |
| State |
Sizes
mm |
Rm
(MPa) |
Rp0,2
(MPa) |
A
% mini |
A50
% mini |
| Diam |
Flat |
mini |
max |
mini |
max |
| O/H111 |
<
80 |
<80 |
-
|
240 |
-
|
125 |
12 |
10 |
| T3 |
<80 |
<80 |
400 |
- |
250 |
- |
10 |
8 |
| T351 |
<80 |
<80 |
400 |
- |
250 |
- |
8 |
6 |
|
Top of the
page
Drawn tubes
(according to the standard EN-754-2): |
| State |
Sizes
mm
Thickness of wall
|
Rm
(MPa) |
Rp0,2
(MPa) |
A
% mini |
A50
% mini |
| mini |
max |
mini |
max |
| O/H111 |
£
20
|
-
|
240
|
-
|
125
|
12
|
10
|
|
T3
|
£
20
|
400
|
-
|
250
|
-
|
10
|
8
|
|
T3510/T3511
|
£
20
|
400
|
-
|
250
|
-
|
8
|
6
|
|
Top of the page
Wires according to the standard
EN 1301-2: |
| State |
Diameter
until and included |
Rm
(MPa) |
|
A100
m
% specific |
| mini |
max |
| H13 |
18 |
210 |
300 |
190 |
5 |
|
T4
|
18
|
380
|
-
|
255
|
18
|
|
Top of the
page
Properties
(for information only): |
Corrosion: |
| General corrosion index |
Not recommended |
| Corrosion in industrial atmosphere |
Satisfactory |
| Corrosion in sea atmosphere |
Not recommended |
| Corrosion in country atmosphere |
Satisfactory |
| Corrosion under stress |
Satisfactory |
| Exfoliation index |
Satisfactory |
| Intercrystalline corrosion |
Satisfactory |
| Tapping index |
Satisfactory |
|
Top of the
page
Anodizing: |
| Bright anodizing |
Not recommended |
| Coloured anodizing |
Not recommended |
| Hard anodizing |
Good |
| Protecting anodizing |
Satisfactory |
|
Top of the page
Strain,
workability: |
State |
O |
T4 |
| Cold working |
Good |
Satisfactory |
| Deep stamping |
Good |
Satisfactory |
| Strain by tension |
- |
Not recommended |
| Embossing ability |
Good |
Not recommended |
| Extrusion ability |
Good |
Good |
| Workability |
Not recommended |
Good |
|
Top of the
page
Welding: |
| Welding by electron beam |
Good |
| Gas welding |
Strongly inadvisable |
| Arc welding |
Not recommended |
| Spot welding |
Good |
| Brazing |
Satisfactory |
| Soft brazing |
Satisfactory |
|
Top of the
page
Elastic and physical properties: |
| Elastic |
Physical |
| E |
G |
n |
Tsol |
Tliq |
Cp |
a |
r |
rel |
l |
EC |
| MPa |
MPa |
- |
°C |
°C |
J kg-1 K-1 |
µm m-1 K-1 |
kg m-3 |
nW
m |
W m-1 K-1 |
%IACS |
| 72500 |
27200 |
0.33 |
510 |
645 |
873 |
22.9 |
2790 |
51 |
134 |
34 |
|
| Légend: |
E |
Elastic modulus |
MPa |
G |
Rigidity modulus |
MPa |
n |
Poisson's ratio |
|
Tsol |
Solidification temperature |
°C |
Tliq |
Melting temperature |
°C |
| Cp |
Specific heating |
J kg-1 K-1 |
a |
Ratio of temperature expansion |
µm m-1 K-1 |
r |
Density |
kg m-3 |
| rel |
Resistivity |
nW m |
l |
Heat conductivity |
W m-1 K-1 |
| EC |
Electrical conductivity |
%IACS |
Top of the page
|
| International correspondences: |
International
|
France
|
Germany
|
Great Britain
|
Italy
|
Switzerland
|
Spain
|
AA
|
NFA
|
Old
|
DIN
|
WNR
|
BS
|
Old
|
UNI
|
Old
|
SNCH
|
UNE
|
2017A
|
2017A
|
AU4G
|
AlCuMg1
|
3.1325
|
2017
|
H14
|
9002/2
|
3579
|
-
|
L 3120
|
Sweden
|
Russia
|
USA
|
Japan
|
Canada
|
Australie
|
Czechoslovakia
|
Finland
|
Norway
|
Holland
|
SS
|
GOST
|
ASTM
|
JIS
|
Old
|
CSA
|
|
CSN
|
SFS
|
NS
|
|
GA631
|
D1
|
2017A
|
A2017
|
A3x2
|
CM41/
17S
|
-
|
42
4201
|
-
|
-
|
17/69
|
|
