EOS NickelAlloy C22
Material Data Sheet
EOS NickelAlloy C22
Nickel-chromium-molybdenum alloy with high corrosion resistance
EOS NickelAlloy C22 is a nickel-chromium-molybdenum alloy with high corrosion resistance. EOS C22 corresponds to ASTM B 574 (UNS N 06022). C22 is highly resistant to pitting corrosion, crevice corrosion and stress corrosion cracking.
- High strength
- High toughness
- High corrosion resistance
- Chemical processing components
- Food processing
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
The chemical composition of EOS NickelAlloy C22 is in compliance with ASTM B 574 (UNS N 06022).
Powder Particle Size
| GENERIC PARTICLE SIZE DISTRIBUTION | 15 - 53 μm | |
|---|---|---|
HEAT TREATMENT
EOS NickelAlloy C22 heat treatment is a solution anneal at 1200 °C for 2 hours followed by water quench or rapid gas cooling (10 bar or higher).
EOS NickelAlloy C22 for EOS M 290 | 40/80 µm
EOS M 290 - 40/80 µm - TRL 3
Process Information Metal
This process product is optimized for flexible and fast production of C22 parts with EOS M 290. The parameter set has three different layer thickness options that can all be utilized within the same build: 40µm, 80 µm and 40/80 µm SkinCore. Both can be used separately for different parts or combined by using 40/80 µm SkinCore with faster 80 µm for the core of the part and higher quality 40 µm building for the surface of the part with defined thickness. Sectionioning parts in vertical direction for different parameters is also possible.
| System Setup | EOS M 290 |
|---|---|
| EOS Material set | C22_040_080_Core M291 |
| Required Software Plan | EOS BUILD |
| Recoater Blade | HSS (High Speed Steel) |
| Nozzle | EOS Grid Nozzle |
| Inert gas | Nitrogen |
| Sieve | 75 µm |
| Additional Information | |
|---|---|
| Layer Thickness | 40/80 µm |
| Volume Rate | 4.1 - 8.4 mm³/s |
| Typical Dimensional Change after HT [%] | + 0.1 % |
Chemical and Physical Properties of Parts
Microstructure of the Produced Parts
| Defects | Thickness | Result | Number of Samples |
|---|---|---|---|
| Average Defect Percentage | 40 µm | < 0.08 % | - |
| Average Defect Percentage | 80 µm | < 0.1 % | - |
Mechanical Properties
Mechanical Properties Heat Treated
| EN ISO 6892-1 Room Temperature | Yield Strength [MPa] | Tensile Strength [MPa] | Elongation at Break [%] | Reduction of Area Z [%] | Number of Samples | |
|---|---|---|---|---|---|---|
| Vertical | 400 | 825 | 55 | - | - | - |
| Horizontal | 410 | 850 | 50 | - | - | - |
EOS NickelAlloy C22 heat treatment is a solution anneal at 1200 °C for 2 hours followed by water quench or rapid gas cooling (10 bar or higher).
Mechanical Properties Heat Treated
| EN ISO 6892-1 Room Temperature | Yield Strength [MPa] | Tensile Strength [MPa] | Elongation at Break [%] | Reduction of Area Z [%] | Number of Samples | |
|---|---|---|---|---|---|---|
| Vertical | 420 | 840 | 52 | - | - | - |
| Horizontal | 430 | 860 | 50 | - | - | - |
EOS NickelAlloy C22 heat treatment is a solution anneal at 1200 °C for 2 hours followed by water quench or rapid gas cooling (10 bar or higher).
Impact Toughness
| EN ISO 148-1, Charpy-V Heat Treated | |
|---|---|
| Typical Impact Toughness [J] | Ver: 170 Hor: 150 |
| Layer Thickness | 40 µm |
| EN ISO 148-1, Charpy-V As Manufactured | |
|---|---|
| Typical Impact Toughness [J] | Ver: 170 Hor: 150 |
| Layer Thickness | 80 µm |
Surface Roughness
