ELBRODUR® HF (CuCr1Zr) is a high-strength age-hardened electrode material for spot welding, in particular high-cycle continuous or roller spot welding.
Suitable for all steels – including alloyed and stainless grades – and for coated and galvanized sheet.
Nominal composition
Percentages are by weight:
Cr 0.65 %
Zr 0.08 %
Cu rem.
perm. other elements max. 0.2 %
Mechanical and Physical Properties
A
B
C*
Tensile strength Rm
MPa
540 - 640
≥490
≥460
Yield strength Rp0.2
MPa
470 - 570
≥440
≥400
Elongation A5
%
10 - 20
≥10
≥16
Reduction of Area Z
%
50 - 70
50 - 70
60 - 80
Hardness HBW 2.5/62.5
160 - 185
155 - 180
140 - 165
Hardness HV 30
165 - 190
160 - 185
145 - 170
Hardness HRB
81 - 90
79 - 89
73 - 83
El. conductivity
MS/m
44 - 50
44 - 50
46 - 52
El. conductivity
% IACS
76 - 86
76 - 86
80 - 90
Forms, Sizes and Tempers
Rods
Dia. (mm)
B
A
B
5
10
25 - 30
Rods
Width a/f (mm)
B
A
B
5
10
25 - 30
C*
Special grade for cold bending
Further sizes and special grades on request
Coils/wire up to 10 mm O.D. or width a/f.
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