Products / C19900
C1990 Copper-Titanium Strip
Copper-titanium reaches strength and stress-relaxation resistance comparable to beryllium copper without containing beryllium. It is chosen for miniature connectors, camera modules and other parts where a very thin spring must keep its force.
Equivalent designations
| System | Designation |
|---|---|
| UNS | C19900 |
| JIS | C1990 |
| EN | CuTi3 |
Typical applications
- Miniature connector contacts
- Camera module springs
- Battery and SIM contacts
- Switch springs
- Test sockets
Chemical composition (%)
| Element | Content |
|---|---|
| Ti | 2.9 – 3.5 |
| Cu | Balance |
Physical properties
| Property | Value |
|---|---|
| Density | 8.70 g/cm³ |
| Elastic modulus | 127 GPa |
| Electrical conductivity | 8 – 13 % IACS |
Tempers and tensile strength
| Temper | Condition | Tensile strength (MPa) |
|---|---|---|
| EH | Mill hardened | 885 – 1080 |
| SH | Mill hardened | 910 – 1110 |
| ESH | Mill hardened | 1000 – 1180 |
Values follow the limits of the governing standard. The mill test certificate for each lot states the measured values.
Supply range
| Item | Value |
|---|---|
| Form | Coil |
| Thickness and width | Supplied to your specification |
| Minimum order | Quoted with each enquiry |
| Lead time | Ex-stock items ship within 48 hours; other items quoted with each enquiry |
Questions buyers ask
When should I choose copper-titanium over beryllium copper?
When the design needs beryllium-copper-level spring performance but the end customer restricts beryllium, or when better formability at high strength is needed. Conductivity is lower than C17200, so it suits signal contacts more than power contacts.
What documents come with each shipment?
The original mill test certificate for the heat lot and a packing list with coil numbers. RoHS and REACH declarations are provided on request.
Request a quotation
Send us the grade, temper, thickness, width and quantity. We reply within one working day.
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