Copper Alloy Strip

Titanium Copper Alloy

Compare Features and Typical Applications

Titanium Copper Alloy

Titanium copper is a copper alloy having titanium as the main additive element. Advantages include high strength along with excellent stress relaxation resistance and bend formability. Its properties are superior to those of beryllium copper alloy, long a representative standard for high-functionality copper alloys.
Among the main uses are for connectors and camera modules in electronic devices such as smartphones and personal computers, taking advantage of the high strength and workability. Thanks to its outstanding stress relaxation resistance, use in automotive connectors has grown in recent years.
As applications grow and the properties customers demand become more advanced as a result, we will continue our technology development toward improving properties and expanding our alloy lineup, so that such needs can be met in timely fashion.

Alloy name Composition Features Applications
Cu-3Ti High strength, superior stress relaxation resistance Connectors, switches, jacks
  • Hyper Series
Cu-3Ti Strength and bend formability superior to conventional titanium copper Connectors, switches, jacks
  • Hyper Series
Cu-3Ti A Hyper Titanium Copper foil product that has the highest level of strength of any copper alloy Connectors, camera modules
Cu-3Ti Electrical conductivity superior to conventional titanium copper Connectors, switches, battery terminals, jacks
Cu-3.2Ti-0.2Fe Strength (Yield strength) of 1 GPa or higher, along with excellent bend formability Connectors, switches, jacks

Compare Composition and Properties

Titanium Copper Alloy Composition and Properties

Chemical Composition (wt%)

Copper Alloy Name TiCu
C1990 C1990HP C1990HC NKT322
Chemical Composition (wt%) Cu : Bal.
Ti : 3.0
Cu : Bal.
Ti : 3.0
Cu : Bal.
Ti : 3.0
Cu : Bal.
Ti : 3.0
Fe : 0.2

Physical Properties

Copper Alloy Name TiCu
C1990 C1990HP C1990HC NKT322
Specific Gravity (g/cm3) 8.70 8.70 8.70 8.70
Modulus of Elasticity (GPa) 127 127
XSH:115
127 120
Electrical Conductivity (%IACS@20℃) 12 12 20 12
Poisson's Ratio 0.33 0.33 0.33 0.33

Mechanical Properties

Copper Alloy Name TiCu
C1990 C1990HP C1990HC NKT322
Tensile Strength (MPa) 1/4H 735-930 - - -
H - - - 900-1000
EH 885-1080 885-1080 (950) 920-1020
SH - 910-1110 - 970-1100
ESH - 1000-1180 - 1010-1200
ESH (HB) - - - 1010-1200
XSH - 1050-1400 - -
XSH (HB) - - - 1050-1250
GSH - 1300-1600
(thickness≦0.1mm)
- -
0.2% Yield Strength (MPa) 1/4H - - - -
H - - - 800-900
EH 800-900 820-920 (900) 850-950
SH - 850-950 - 900-1000
ESH - 940-1040 - 950-1050
ESH (HB) -   - 950-1050
XSH - (1120) - -
XSH (HB) - - - 1000-1100
GSH - (1390) - -
Elongation (%) 1/4H 10min - - -
H - - - 12min
EH 5min 10min (2.0) 10min
SH - 8min - 6min
ESH - (3.0) - 3min
ESH (HB) - - - -
XSH - - - -
XSH (HB) - - - -
GSH - - - -
Vickers Hardness (Hv) 1/4H 250min - - -
H - - - (300)
EH 280min (300) (300) (310)
SH - (320) - (320)
ESH - (340) - (340)
ESH (HB) - - - (340)
XSH - (340) - -
XSH (HB) - - - (350)
GSH - (400) - -
  • Standard specs. (Typical values)

Bend Formability

Copper Alloy Name TiCu
C1990 C1990HP C1990HC NKT322
Minimum Bend
Radius / t Badway
H - - - 0.0 0.5
- - - - t ≦ 0.15 0.15 < t ≦ 0.25
EH 4.0 1.0 0.0 0.5 1.0
- - - (t ≦ 0.1mm) t ≦ 0.15 0.15 < t ≦ 0.25
SH - 2.0 - 1.0 2.0
- - - - t ≦ 0.12 0.12 < t ≦ 0.22
ESH - ≧5.0 - 2.0 3.0
- - - - t ≦ 0.10 0.10 < t ≦ 0.20
  • Bad way 90°W-shape Bending Width=10mm
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