EOS CopperAlloy CuCrZr
Material Data Sheet
EOS CopperAlloy CuCrZr
EOS CopperAlloy CuCrZr has a favorable combination of electrical and thermal conductivity accompanied with good mechanical properties. This alloy reaches its good properties during heat treatment.
- High productivity 12 mm3/s with 80 µm layer thickness
- Moderate to high conductivity in heat treated condition together with good mechanical properties
- Chemical composition corresponds to C18150 and CW106C
- Available in 10 kg drum and 400 kg Big Bag packaging
- Rocket engine parts
- Heat exchangers
- Induction coils
The EOS Quality Triangle
EOS incorporates these TRLs into the following two categories:
- Premium products (TRL 7-9): offer highly validated data, proven capability and reproducible part properties.
- Core products (TRL 3 and 5): enable early customer access to newest technology still under development and are therefore less mature with less data.
All of the data stated in this material data sheet is produced according to EOS Quality Management System and international standards
POWDER PROPERTIES
Powder Chemical Composition (wt.-%)
| Element | Min. | Max. |
|---|---|---|
| Cu | Balance | |
| Cr | 0.45 | 1.15 |
| Zr | 0.05 | 0.25 |
| Fe | - | 0.08 |
| Si | - | 0.01 |
Powder Particle Size
| GENERIC PARTICLE SIZE DISTRIBUTION | 15 - 75 μm | |
|---|---|---|
HEAT TREATMENT
CuCrZr can be heat treated to reach different mechanical properties and conductivity values.
Conductivity optimized heat treatment*:
Ageing: 3 h at 550 °C under inert gas flow/atmosphere. Slow cooling in inert gas until temperature is below 100 °C
Tensile optimized heat treatment:
Ageing: 1h hold in 490°C under inert gas flow/atmosphere.
Slow cooling in inert gas until temperature is under 100°C
*heat treatment developed in cooperation with University of Padua and Istituto Nazionale di Fisica Nucleare
EOS CopperAlloy CuCrZr for EOS M 400 | 80 µm
EOS M 400 - 80 µm - TRL 5
| System Setup | EOS M 400 |
|---|---|
| EOS Material set | CuCrZr_080_CoreM400 |
| Software Requirements |
EOSPRINT 2.11 or newer EOSYSTEM 2.15 or newer |
| Recoater Blade | HSS (High Speed Steel) |
| Inert gas | Argon |
| Sieve | 90 µm |
| Additional Information | |
|---|---|
| Layer Thickness | 80 µm |
| Volume Rate | 10.9 mm³/s |
| Min. Wall Thickness | 0.8 mm |
Chemical and Physical Properties of Parts
Solid parts chemistry matches the powder chemistry
Etched micrograph
Microstructure of the Produced Parts
| Defects | Thickness | Result | Number of Samples |
|---|---|---|---|
| Average Defect Percentage | 80 µm | 0.2 % | - |
| Density | Thickness | Result | Number of Samples |
|---|---|---|---|
Mechanical Properties Heat Treated
| EN ISO 6892-1 Room Temperature | Yield Strength [MPa] | Tensile Strength [MPa] | Elongation at Break A [%] | Reduction of Area Z [%] | Number of Samples | |
|---|---|---|---|---|---|---|
| Vertical | 230 | 350 | 36 | 69 | 115 | - |
| Horizontal | 255 | 410 | 30 | 63 | 130 | - |
Conductivity optimized heat treatment
Mechanical Properties Heat Treated
| EN ISO 6892-1 Room Temperature | Yield Strength [MPa] | Tensile Strength [MPa] | Elongation at Break A [%] | Reduction of Area Z [%] | Number of Samples | |
|---|---|---|---|---|---|---|
| Vertical | 495 | 540 | 18 | 49 | 125 | - |
| Horizontal | 510 | 590 | 18 | 45 | 120 | - |
Tensile properties optimsed heat treatment
Modulus of elasticity testing according to EN ISO 6892-1 Method A, Range 1 (0.00007 1/s).
Hardness
| Heat Treated | |
|---|---|
| Value | 120 |
| Unit | HV10 |
| Heat Treated | |
|---|---|
| Value | 190 |
| Unit | HV10 |
Surface Roughness
Electrical Conductivity
| ASTM E1004-17 | Orientation | Typical Electrical Conductivity [%IACS] |
|---|---|---|
| Heat Treated | 80 µm | Default | Vertical | 88 |
Conductivity optimized heat treatment
2 sample cubes, all measured from 5 surfaces. Standard deviation 3.0
| ASTM E1004-17 | Orientation | Typical Electrical Conductivity [%IACS] |
|---|---|---|
| Heat Treated | 80 µm | Default | Vertical | 76 |
Tensile properties optimzed heat treatment. 3 sample cubes, all measured from 5 surfaces. Standard deviation 0.7
| ASTM E1004-17 | Orientation | Typical Electrical Conductivity [%IACS] |
|---|---|---|
| Heat Treated | 80 µm | Default | Vertical | 85 |
DAH conductivity heat treatment. 1 sample cubes, all measured from 5 surfaces. Standard deviation 0.7
| ASTM E1004-17 | Orientation | Typical Electrical Conductivity [%IACS] |
|---|---|---|
| As Manufactured | 80 µm | Default | Vertical | 23 |
EOS CopperAlloy CuCrZr for EOS M 290 1kW | 80 µm
EOS M 290 1kW - 80 µm - TRL 3
| System Setup | EOS M 290 1kW |
|---|---|
| EOS Material set | CuCrZr_080_CoreM294; CuCrZr_080_CoreM291_1kW_100 |
| Required Software Plan | EOS BUILD |
| Software Requirements |
EOSPRINT 2.15 or newer EOSYSTEM 2.19 or newer |
| Recoater Blade | HSS (High Speed Steel) |
| Nozzle | EOS Grid Nozzle |
| Inert gas | Argon |
| Sieve | 90 µm |
| Additional Information | |
|---|---|
| Layer Thickness | 80 µm |
| Volume Rate | 15.4 mm³/s |
Chemical and Physical Properties of Parts
Solid parts chemistry matches the powder chemistry
Microstructure of the Produced Parts
| Defects | Thickness | Result | Number of Samples |
|---|---|---|---|
| Average Defect Percentage | - | 0.2 % | - |
| Density | Thickness | Result | Number of Samples |
|---|---|---|---|
Mechanical Properties
Mechanical Properties As Manufactured
| EN ISO 6892-1 Room Temperature | Yield Strength [MPa] | Tensile Strength [MPa] | Elongation at Break A [%] | Reduction of Area Z [%] | Number of Samples | |
|---|---|---|---|---|---|---|
| Vertical | 160 | 210 | 40 | - | - | - |
| Horizontal | 160 | 210 | 40 | - | - | - |
Mechanical Properties Heat Treated
| EN ISO 6892-1 Room Temperature | Yield Strength [MPa] | Tensile Strength [MPa] | Elongation at Break A [%] | Reduction of Area Z [%] | Number of Samples | |
|---|---|---|---|---|---|---|
| Vertical | 210 | 340 | 25 | - | - | - |
| Horizontal | 210 | 340 | 25 | - | - | - |
Two different heat treatments are recommended for EOS CopperAlloy CuCrZr - one conductivity optimized and one tensile properties optimized.
Conductivity optimized HT*:
Ageing: 3 h at 550 °C under inert gas flow/atmosphere.
Slow cooling in inert gas until temperature is below 100 °C
Tensile optimized HT:
Ageing: 1h hold in 490 °C under inert gas flow/atmosphere.
Slow cooling in inert gas until temperature is under 100 °C
*Heat treatment developed in cooperation with University of Padua and Istituto Nazionale di Fisica Nucleare
Electrical Conductivity
| ASTM E1004-17 | Orientation | Typical Electrical Conductivity [%IACS] |
|---|---|---|
| As Manufactured | 80 µm | Default | Vertical | > 20 |
| ASTM E1004-17 | Orientation | Typical Electrical Conductivity [%IACS] |
|---|---|---|
| Heat Treated | 80 µm | Default | Vertical | > 80 |