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Foil Products Titanium Copper C1990HP foil

Description

Data
  • A foil product made from hyper titanium copper (model number C1990HP) having the highest level of strength of any copper alloy.
  • High strength and excellent spring properties make it a possible alternative to beryllium copper foil.
  • Higher thickness precision than conventional materials is achieved by optimization of the manufacturing processes.
    Product thickness with high accuracy improves the stability of spring properties.
  • All production processes from metal melting to product-width slitting take place in our Kurami Works, hence enabling quick delivery time.

Features

  • Extremely high strength
  • High spring property
  • Can be used in place of beryllium copper
  • Fine thickness variation
  • High reliability
  • Excellent stress relaxation property
  • Excellent fatigue property
  • Integrated production for quick delivery

Thicknesses

  • 30µm~100µm
    *maximum width 450mm

Applications

  • Connector
  • Spring in Auto-focus module for smartphones and feature phones

Table 1.Chemical Composition of C1990HP foil(%)

  Ti Cu + Ti
Typical 2.90~3.50 ≧ 99.5

Table 2.Physical Properties of C1990HP foil

Electric conductivity 10 %IACS(@20℃)
Specific resistance 172 nΩ・m(@20℃)
Thermal conductivity 47 W/mK
Thermal expansion coefficient 18.6 ×10-6/K(20 to 300℃)
Young's modulus Temper XSH:115 GPa
USH:115
GSH:127
Density 8.70 g/cm3

Table 3.Mechanical Properties of C1990HP foil

*Upper data: typical values.
Lower data: specifications

Temper Tensile Strength
(MPa)
Vickers Hardness
(Hv)
C1990HP-XSH 1150
1050-1400
340
310-380
C1990HP-USH 1350
1200-1550
360
330-420
C1990HP-GSH 1400
1300-1600
400
350-450

*Note that all numerical values shown are typical values.

Fig.1 Histogram of thickness distribution in the rolling direction (high thickness precision material compared to conventional material; thickness 30µm)

Fig.1 Histogram of thickness distribution in the rolling direction (high thickness precision material compared to conventional material; thickness 30µm)

*Data obtained by X-ray measurements of thickness at the center of the width direction of the mother coil, taken every 0.01 seconds for approximately 1,000 meters.

*The values shown are typical values and not intended as specifications.

Fig.2 Thickness distribution in the width direction (high thickness precision material; N=3, thickness 30µm)

Fig.2 Thickness distribution in the width direction (high thickness precision material; N=3, thickness 30µm)

*Thickness distribution was measured in the width direction using a direct contact thickness gauge.

*The values shown are typical values and not intended as specifications.