Relays and switches
Relays and switches, commonly used in a broad spectrum of applications in the automotive and robot industry, require materials and properties comparable to those in connector applications. In fact, requirements like good electrical conductivity, combined with high mechanical strength to meet the required spring characteristics, relaxation resistance at elevated temperatures and fatigue resistance are decisive for this area of application. Apart from conventional alloys (brass, bronze, certain stainless steels etc.), Lamineries MATTHEY supplies premium products such as rolled precision strips in copper-beryllium alloy.
See the brochures "Guide to Copper Beryllium" or the "Design Guide" for help in designing with CuBe.
Below you will find a list with those alloys in strip and foil form which are generally used in relay and switch making, together with the available technical data:
| Beryllium Copper and Beryllium Nickel | Technical file |
|---|---|
| CuBe2 - Alloy 25 / C17200 / CW101C | 
CuBe2-All.25-P_v22E.pdf |
| CuBe2 - Alloy 290 mill hardened / C17200 / CW101C | |
| CuBe2 - Alloy 190 mill hardened / C17200 / CW101C |
CuBe-Alloy190_v22E.pdf |
| CuCo0.5Be - Alloy 174 mill hardened / C17410 | |
| CuNi1.2Be0.3 - Alloy 60 mill hardened / C17460 | |
| CuNi2Be - Alloy 3 / C17510 / CW110C |
CuNi2Be-Alloy3_v25E.pdf |
| CuNi2Be - Alloy 3 mill hardened / C17510 / CW110C |
CuNi2Be-Alloy3_v25E.pdf |
| CuNiBe0.5 - Alloy 390 mill hardened / C17460 | |
| NiBe2 - Alloy 360 / N03360 |
NiBe-Alloy360_v22E.pdf |
| Copper alloys | Technical file |
| CuNi30Mn1Fe - Copper-Nickel, 30% / CW354H / ~ C71500 | |
| CuSn6 - Phosphor Bronze, 6% / CW452K / C51900 |
CuSn6_v22E.pdf |
| CuSn8 - Phosphor Bronze, 8% / CW453K / C52100 |
CuSn8_v22E.pdf |
| CuZn28 - Brass / CW504L |
CuZn28_v22E.pdf |
| CuZn30 - Cartridge Brass 30% / CW505L / C26000 | |
| CuZn37 - Yellow Brass 63% / ~CW508L / ~CW507L / ~C27000/ ~C27200 |
CuZn37_v22E.pdf |
| CuZn38Pb2 - High Leaded Brass, 62% / CW608N / ~C35300 |
CuZn38Pb2_v22E.pdf |
| Other specialties | Technical file |
| CuNi15Sn8 - BrushForm® 158 / ToughMet 3 / C72900 |
BrushForm158_v22E.pdf |
| CuNi15Sn8 - BrushForm® 158 mill hardened (Toughmet 3) / C72900 |
BrushForm158_v22E.pdf |
| Duratherm® 600 / 2.4781 |
Duratherm_v25E.pdf |
Other alloys are also available. There is a list with all presently available alloys.
