Cu%(WT)
W%(WT)
RWMA
Class
Density
(Min)
Electric conductivity
(Min)
Hardness
(Min)
Heat conductivity
Thermal expansion
CuW55
452
Balance
10
12.30 g/cm3
49% IACS
125HB
~260(W/mK)
~11.7(10-6/K)
CuW60
402
Balance
12.75 g/cm3
47% IACS
140HB
CuW65
352
Balance
3.30 g/cm3
44% IACS
155HB
CuW70
302
Balance
13.80 g/cm3
42% IACS
175HB
~240(W/mK)
~9.7(10-6/K)
CuW75
252
Balance
11
14.50 g/cm3
38% IACS
195HB
200~230 (W/mK)
9.0~9.5 (10-6/K)
CuW80
202
Balance
12
15.15 g/cm3
34% IACS
220HB
190~210(W/mK)
8.0~8.5 (10-6/K)
CuW85
152
Balance
15.90 g/cm3
30% IACS
240HB
180~200(W/mK)
7.0~7.5(10-6/K)
