The addition of tin improves the corrosion resistance, especially in the sea water. The lead improves the workability.
|
Chemical compound % |
Agent |
Cu |
Al |
Fe |
Mn |
Ni |
Pb |
Si |
Sn |
Zn |
Other |
Mass-volume g/cm3 |
Mini: |
59,5
|
-
|
-
|
-
|
-
|
1,3
|
-
|
0,5 |
Reste |
-
|
8,5 |
Maxi: |
61,5
|
-
|
0,1
|
-
|
0,3
|
2,2
|
-
|
1,0 |
|
0,2
|
|
Mechanical properties of bars for screw cutting (EN 12164) : |
State |
Nominal size of the straight section |
Tensile strength Rm N/mm˛ min. |
Conventional elastic limit at 0,2Rp0,2 N/mm² |
Stretching |
Hardness
HB
ou HV
approx |
Diameter
mm |
Size on flat mm |
from |
more than |
until and included |
from |
more than |
until and included |
A100mm
% min. |
A11,3
% min. |
A
% min. |
M |
2 |
- |
80 |
2 |
- |
60 |
|
|
|
|
|
|
R390 |
12 |
- |
25 |
10 |
- |
20 |
390 |
(240) |
- |
- |
18 |
(120) |
R370 |
- |
25 |
50 |
- |
20 |
40 |
370 |
(220) |
- |
- |
22 |
(110) |
R360 |
- |
50 |
80 |
- |
40 |
60 |
360 |
(200) |
- |
- |
25 |
(110) |
R410 |
2 |
- |
50 |
2 |
- |
40 |
410 |
(250) |
12 |
15 |
18 |
(125) |
R460 |
2 |
- |
25 |
2 |
- |
20 |
460 |
(350) |
6 |
8 |
10 |
(140) |
R500 |
2 |
- |
12 |
2 |
- |
10 |
500 |
(400) |
(2) |
(3) |
5 |
(160) |
|
Mechanical properties of cored bars for screw cutting (EN 12168) : |
State
|
Nominal thickness of the walls mm.
|
Hardness
|
Tensile strength
|
Conventional elastic limit at 0,2%
|
Stretching
|
HB
|
HV
|
Rm
N/mm² approx.
|
Rp0,2
N/mm² approx.
|
A
% approx.
|
until and included |
more than
|
min.
|
max.
|
min.
|
max.
|
M
|
All
|
Untreated
|
H125
|
10
|
-
|
125
|
175
|
135
|
185
|
(410)
|
(250)
|
(18)
|
H110
|
-
|
10
|
110
|
160
|
120
|
170
|
(370)
|
(220)
|
(22)
|
|