EN 1652 Cu-OF H090 – High-Performance Copper-Free Alloy with Superior Conductivity
The mark Cu-OF, mat. No CW008A, is a copper free of oxygen and deoxidation agents. To the comparable DIN-mark OFCu, mat. No 2.0040 acc. to DIN 1787 : 1973-01 applies: The material is hydrogen resistant and shows very high thermal and electrical conductivity. Tensile strength and Brinell hardness are increasable by cold forming. Processing properties: hot forming: very good cold forming: very good machinability: unfavorable hard soldering: good soft soldering: very good gas-shielded welding: good burnishing: very good Application: Preferred application in electrical engineering, electronics, vacuum technology as well as for production of all types of semifinished parts when highest electrical conductivity is required. For the electrolytically tinned strip the coatings (Sn bright, Sn matt, Sn fuzed, SnPb) are listed by the application (better solderability, better corrosion resistance, reduction of the electrical contact resistance, better appearance) in the DIN EN 14436 : 2004-11 (Table 5)
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 8.9 - 8.94 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 127 GPa | |
Hardness, Brinell | 20.0 °C | 85 - 105 [-] | |
Hardness, Vickers | 20.0 °C | 90 - 110 [-] | |
Poisson's ratio | 20.0 °C | 0.34 [-] | |
Shear modulus | 23.0 °C | 48 GPa | Typical for Wrought Copper Pure / Low Alloyed Copper |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 23.0 °C | 1.6E-5 - 1.8E-5 1/K | Typical for Wrought Copper Pure / Low Alloyed Copper |
Melting point | 965 - 1100 °C | Typical for Wrought Copper Pure / Low Alloyed Copper | |
Specific heat capacity | 20.0 °C | 385 J/(kg·K) | |
Thermal conductivity | 20.0 °C | 393 - 394 W/(m·K) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 20.0 °C | 5.80E+7 S/m |
Electrical resistivity | 20.0 °C | 1.7E-8 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Bismuth | 5E-4 % |
Copper | 99.95 % |
Lead | 5E-3 % |
Metal
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