Luma Gold Plated Tungsten Wire
alloyed with 3% Rhenium
Luma Gold Plated
TungstenWire alloyed
with 3% Rhenium
For some applications tungsten rhenium wire has to be plated to meet
special requirements. This may be for instance to protect the wire from
corrosion or to solder it to other metals.
Example of
Applications:
Printing
Technical research
Antennas
Properties of tungsten wire
alloyed with 3% Rhenium
Wire qualities:
Description
861/60
Treatment before plating: Etched
Type of strike: Gold
861/65 Treatment before plating: Etched
Type of strike: Gold
This quality is processed to meet demands for medical
use.
861/66
Purity of tungsten before
rhenium addition
99.95% W
Treatment before plating: Ultra polished
Type of strike: Gold
861/67
Treatment before plating: Ultra polished
Type of strike: Nickel
Wire dimensions: 5 – 500 microns
Melting point 3380 °C
Density 19.22 g/cm3
Specific electrical resistance at 20 °C 0.092 Ohm x mm2/m
Modulus of elasticity
at 20 °C
430 kN/mm2 Diameter tolerances: +/- 4% by weight as standard
Minimum +/- 1.5% available on request
Gold coat thickness: For wire dimensions below 50 microns, the coat thickness corresponds to 3 – 5% by weight as standard. For wire dimensions from 50 microns the coat thickness is 0.5 micron as standard. The coat thickness can be adjusted to meet your requirements
Examples of wire dimensions
with coat thickness as per Luma standard
2009.11
Wire dimension
(microns)
Wire dimension
(mils)
25
50
75
100
150
0.984
1.97
2.95
3.94
5.91
Au coat thickness
(microns)
0.25 +/- 0.07 0.5 +/- 0.1
0.5 +/- 0.1
0.5 +/- 0.1
0.5 +/- 0.1
Au coat by weight
(%)
3.0 - 5.0
3.0 - 5.0
2.2 - 3.2
1.6 - 2.4
1.0 - 1.6
LUMA-METALL AB, Kalmar, Sweden
Telephone +46-480 42 90 45
e-mail: sales@luma-metall.se
www.luma-metall.se
Certified in accordance
to ISO 9001:2008
Ovality (out of roundness): ø Microns Standard Available on request
< 15
≥ 15
Max 6%
Max 5%
Max 3%
Max 2%
Elongation: 95
/1
00
90
/1
00
80
/1
00
Straightness:
85
/1
00
1 – 3%
0
Straightness grade
4
3
2
1
(80/100)
(85/100)
(90/100)
(95/100) ø Microns < 15
ø Microns ≥ 15
standard
on request
on request
not available
standard
on request
on request
50
100 (cm)
Standard tensile strength of Gold Plated Tungsten alloyed with 3% Rhenium
Tensile strength: Tensile strength Gold plated Tungsten/Rhenium
4400
4200
4000
3800
N/mm2
3600
3400
Max
Average
3200
Min
3000
2800
2600
2400
30
19
140
120
100
80
60
70
60
50
40
30
0.30
43
160
0.68
59
180
1.20
77
200
1.88
98
220
2.71
120
240
2.71
146
260
4.82
173
280
7.53
204
300
10.84
236
Micron
14.76
271
2000
mg/200mm
11
2200
LUMA-METALL AB, Kalmar, Sweden
Telephone
+46-480
42 90 45
25
20
15
10
e-mail: sales@luma-metall.se
www.luma-metall.se
30
Certified in accordance
to ISO 9001:2000