EN 1977 Grade Cu-HCP M – Premium Deoxidized Copper for High-Performance Applications
Cu-DHP, mat. No CW021A, is a deoxidized copper with low phosphorus-content. To the comparable DIN-mark SF-Cu, mat. No 2.0070 acc. to DIN 1787: 1973-01 (precondition for the comparability: Cu-content min. 99,95%, deoxidation agent phosphorus) applies: The material is also available in a special quality free of steam stripping elements. This is very important for vacuum technology. Tensile strength and Brinell hardness are increasable by cold forming. SE-Cu is hydrogen resistant and shows the lowest thermal and electrical conductivity of the pure copper materials. Processing properties: hot forming: very good cold forming: very good machinability: unfavorable hard soldering: very good soft soldering: very good gas-shielded welding: good burnishing: good Application: Preferably application in electrical engineering, electronics. For production of all types of semifinished parts when high electrical conductivity is demanded as well as in vacuum technology and as cladding material.
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 - 129 GPa | |
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 | 100.0 °C | 1.69E-5 1/K | |
200.0 °C | 1.73E-5 1/K | ||
300.0 °C | 1.76E-5 1/K | ||
Melting point | 965 - 1100 °C | Typical for Wrought Copper Pure / Low Alloyed Copper | |
Specific heat capacity | 20.0 °C | 385 - 390 J/(kg·K) | |
100.0 °C | 393 J/(kg·K) | ||
200.0 °C | 403 J/(kg·K) | ||
Thermal conductivity | 20.0 °C | 385 - 386 W/(m·K) | |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 20.0 °C | 5.70E+7 S/m |
Electrical resistivity | 20.0 °C | 1.8E-8 Ω·m |
Specific Electrical conductivity | 98 % IACS |
Chemical properties
| Property | Value |
|---|---|
Bismuth | 5E-4 % |
Copper | 99.95 % |
Lead | 5E-3 % |
Phosphorus | 2E-3 - 7E-3 % |
Metal
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