CuCr | 2.1291 Material Datasheet
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| Material Number | Material Name | Material Number (single) | Standard | Scope | Standard Status | Country | VDA 231-106 classification | |
|---|---|---|---|---|---|---|---|---|
| 2.1291 (DIN 17666 : 1970-11) | CuCr | 2.1291 | DIN 17666 : 1970-11 | DIN 17666 : 1970-11 replaced by DIN 17666 : 1983-12 | Replaced | Germany | 3.2 | 1) |
| 1) Remark: CuCr belongs to the hardenable, low-alloy copper alloys. Both strength and electrical conductivity are strongly increased by precipitation hardening. A cold forming before and/or precipitation hardening annealing entails an additional strength increase. The strength grade lie between F20 and F48. Disadvantage of CuCr is in some cases the relatively high notch sensitivity at increased temperatures. The destabilization temperature is approx. 475 °C. Manufacturing properties: hot forming: well cold formings: very well machinability: means hard and soft soldering: means gas-schielded arc welding: means polishing bar: well Application: In particular for electrodes for resistance welding, for electro-technology and the building of welding machines, for energized contacts and springs as well as mold material. |
Chemical Composition
| Cr [%] | Cu [%] | |
|---|---|---|
| blur | blur | 1) |
| 1) Source: blur |
Material Compliance
| REACh | RoHS |
|---|---|
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Physical Properties
| Temperature [°C] | Melting Temperature [°C] | Density [g/cm³] | Young's Modulus [GPa] | Thermal Conductivity [W/(m*K)] | Electric Conductivity [MS/m] | |
|---|---|---|---|---|---|---|
| blur | blur | blur | blur | blur | blur | 1) |
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Heat Treatment
| Heat Treatment | Temperature [°C] | |
|---|---|---|
| blur | blur | 1) |
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Cross Reference
| Material Name | Country | Standard |
|---|---|---|
| CuCr1 | Bulgaria | BDS 14894-79 |
| BrCh1 | Russia | GOST 18175-78 |
| CuCr1 | International | ISO 1336-80 |
| CuCr | Poland | PN-79/H-87053 |
Producer/Supplier/Trade names
| Tradename | Supplier |
|---|---|
| CuCr | CSN Carl Schreiber GmbH, Neunkirchen |
| CuCr | Wieland Metal Services Germany GmbH, Düsseldorf |
| Elektral 1 | Wieland Metal Services Germany GmbH, Düsseldorf |
Linear-elastic
| Temperature [°C] | Young's modulus [GPa] | Bulk modulus [GPa] | Shear modulus [GPa] | Poisson's ratio |
|---|---|---|---|---|
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Density
| Temperature [°C] | Density [g/cm³] |
|---|---|
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Thermal conductivity
| Temperature [°C] | Thermal conductivity [W/(m*K)] |
|---|---|
| blur | blur |
Classification
| WIAM Material | Treatment | Semi-finished product | Dimension [mm] | Load type | Failure criteria | Rolling direction | Maximum stress [MPa] | Strain at maximum stress [%] | Source description |
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Designation
| Designation | Material number | Source |
|---|---|---|
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