The added alloy metals improve the mechanical properties compared with the simple brasses or with a similar copper content. The lead improves the workability. Used for the fasteners, the parts of valves, etc.
|
Chemical compound % |
Agent |
Cu |
Al |
Fe |
Mn |
Ni |
Pb |
Si |
Sn |
Zn |
Other |
Mass-volume g/cm3 |
Mini: |
58,0
|
0,3
|
-
|
1,5
|
2,0
|
0,2
|
-
|
- |
Reste |
-
|
8,3 |
Maxi: |
60,0
|
1,3
|
0,5
|
2,5
|
3,0
|
0,8
|
0,1
|
0,5 |
- |
0,3
|
|
Mechanical properties of bars for general usings (EN 12163) : |
State |
Implementation |
Diameter or size/flats mm |
Tensile strength Rm N/mm˛ min. |
Conventional elastic limit at 0,2Rp0,2 N/mm² |
Stretching |
Hardness |
from |
more than |
until |
A100mm
% min. |
A11,3
% min. |
A
% min. |
HB
min. |
HB
max. |
HV
min. |
HV
max. |
M
|
|
3
|
-
|
80
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
R490
|
|
5
|
-
|
40
|
490
|
(300)
|
-
|
15
|
20
|
-
|
-
|
-
|
-
|
H120 |
|
5 |
- |
40 |
- |
- |
- |
- |
- |
120 |
150 |
125 |
155 |
R550 |
|
5 |
- |
14 |
550 |
(400) |
- |
8 |
10 |
- |
- |
- |
- |
H150 |
|
5 |
- |
14 |
- |
- |
- |
- |
- |
150 |
- |
160 |
- |
|
Mechanical properties of bars for die forging (EN 12165) : |
State |
Nominal size of the straight section |
Hardness |
Tensile strength
Rm
N/mm˛
approx. |
Conventional elastic limit at 0,2 %
Rp0,2
N/mm˛
approx. |
Stretching
A%
approx. |
Diameter
mm |
Size on flat mm |
from |
until and included |
from |
until and included |
HB
min. |
HV
min. |
M |
All sizes |
|
|
|
|
|
H100 |
6 |
80 |
6 |
60 |
100 |
105 |
(440) |
(180) |
(10) |
|
Mechanical properties of sections and rectangular bars (EN 12167): |
State |
Sizes |
Tensile strength Rm N/mm˛ min. |
Conventional elastic limit at 0,2Rp0,2 N/mm² |
Stretching
A % |
Hardness |
Section |
Rectangular bars thickness mm |
>
at |
<
or = |
HB
min. |
HV
min |
M
|
All |
All |
|
|
|
|
|
R490
|
-
|
-
|
6
|
490
|
(320)
|
(8)
|
-
|
-
|
H130 |
- |
- |
6 |
- |
- |
- |
130 |
135 |
R440 |
- |
6 |
60 |
440 |
(200) |
(12) |
- |
- |
H110 |
- |
6 |
60 |
- |
- |
- |
110 |
115 |
|