Rounds

Material, grade
Diameter, μm
As received condition
Tensile strength, MPa
Elon-gation, %
Resistivity,
Ω m, not more
Designation
Micron scale wire made
from Al-Si alloy (0,9)
27
solid
soft
300-400
200-310
1-6
2-6
3,510-8
For micro-welding of semiconduc-tor devices and integrated circuits
30
solid
soft
300-400
200-300
1-6
2-6
3,510-8
35
solid
soft
300-400
200-300
2-6
4-6
3,510-8
40
solid
soft
300-400
200-300
2-6
4-6
3,510-8
50
solid
soft
300-400
200-300
1-6
1-6
3,510-8
60;80;100
160;200;250
300;400;500
solid
soft
220-300
200-300
2-12
2-12

3,010-8
High alloyed wire from microalloyed aluminum alloy
()
200-400
44-66 5-25 3,010-8
For welding powerful semiconduc-tor devices and integrated circuits
Bimetallic wire,
copper-kovar
1000
vacuum melted copper core; 
cladding from alloy 29
(Fe-Ni-Co)
500
1,010-7
For the output of powerful transistors
Bimetallic wire,
from
FeNi-copper
(50-)
alloy
300
Core material -
Fe-50%Ni
alloy,
Cladding material - vacuum melted copper 
600 20  
For the contact spring of magnetically operated sealed switch
Micron scale aluminum wire

100-5000
solid
soft
- - -
For welding leads in integrated circuits and transistors


ID Codes for rounds (as per State Standard RF)
Name of material
Type of rolled stock Designation
1 , , 1, 0  copper
wair 0,1-6,0 mm, bar
5,0-14,0
electronic engineering
2 63 brass
wair 0,1-6,0 mm, bar
5,0-14,0
machine building, instrument engineering
3
3-1,
6,5-0,15,
, 4-3
bronze
wair 0,1-6,0 mm, bar
5,0-14,0
instrument engineering, 
machine building,
semifinished materials
4 1, 2, 2 nickel
wair 0,1-6,0 mm, bar
5,0-14,0
electronic engineering
5 29, 29- kovar
wair 0,1-6,0 mm, bar
5,0-14,0
radio electronics,
integrated microcircuits,
geodesy
6 36, 36 invar
wair 0,1-6,0 mm, bar
5,0-14,0
7 42, 42- FeNi
wair 0,1-6,0 mm, bar
5,0-14,0
8 50, 79 permalloy
wair 0,1-6,0 mm, bar
5,0-14,0