GRCop-42 powder — supplier & RFQ
Dispersion-strengthened Cu-Cr-Nb powder for rocket combustion chambers, nozzles, and high-heat-flux heat exchangers.
- PSD15–45 µm · 15–53 µm
- ProcessLPBF
- Ref. priceOn request
- Min. pack1 kg
- Grade
- GRCop-42 · Cu-Cr-Nb
- Particle size
- 15–45 µm · 15–53 µm
- Processes
- LPBF
- Reference price
- On request
- Samples
- Paid · from 1 kg
- Packaging
- Aluminium-foil bag · 1 kg sealed pack · Drum
- Lot documents
- Lot-specific COA · Particle-size report · Safety data sheet · Chemistry report
GRCop-42 powder applications by industry
| Industry | Typical parts | Why GRCop-42 | Specify in your RFQ |
|---|---|---|---|
| Rocket propulsion Guide → | Combustion chamber liners, regeneratively cooled nozzles | Dispersion-strengthened Cu-Cr-Nb alloy that keeps strength and conductivity at high temperature | Heat flux, HIP, proof pressure, hot-fire evidence |
| High-heat-flux heat exchangers Guide → | Compact exchangers and cooled hardware | Better high-temperature strength and creep than CuCrZr | Temperature, creep and LCF requirement |
Designations
- GRCop-42
- Cu-4Cr-2Nb
- Cu-Cr-Nb alloy
Specify GRCop-42 by its Cr and Nb ranges and oxygen limit; compare with CuCrZr when cost or availability matters more than high-temperature strength.
Particle size and powder properties
- Standard cuts
- 15–45 µm · 15–53 µm
- Processes
- LPBF
- Typical uses
- Rocket combustion chamber liners · Regeneratively cooled nozzles · High-heat-flux heat exchangers
Chemical composition
| Cu | Cr | Nb | O | Fe | Si | Al |
|---|---|---|---|---|---|---|
| Balance | 3.1–3.4 | 2.7–3.0 | ≤0.04 | <0.005 | <0.01 | <0.01 |
wt.% · Typical partner-plant datasheet limits, wt.%. The quoted lot COA governs.
Typical mechanical properties
| Condition | Temperature | Tensile | Yield | Elongation |
|---|---|---|---|---|
| Heat treated | Room temperature | ≥350 MPa | ≥180 MPa | ≥30% · Thermal conductivity ≥330 W/(m·K), ≥85% IACS per datasheet |
Partner-plant datasheet values for LPBF test bars at room temperature unless stated. Printed-part properties depend on machine, parameters, orientation, and post-processing.
Documents and packaging
Supplied with each lot
- Lot-specific COA
- Particle-size report
- Safety data sheet
- Chemistry report
State the Cr, Nb, and oxygen limits, conductivity target, HIP or heat-treatment plan, and the high-temperature tests your program requires.
Packaging
- Aluminium-foil bag — very small quantities and paid samples
- 1 kg sealed pack — minimum standard package
- Drum — production lots
Samples are paid. The smallest standard pack is 1 kg.
Export
Export & compliance →For every Copper Alloy GRCop-42 order we check export-control classification and transport requirements before quoting a ship date, and prepare the SDS, transport classification and shipping documents as one set.
Price
Reference · October 2026
On request
No reliable public list price was found for this grade. Reference only, not an offer. Formal prices, lead time, and terms are issued only in a written quotation from our official corporate email.
Other copper alloy grades
| Powder | Particle size | Process |
|---|---|---|
| CuCrZr C18150 powder | 15–45 µm · 15–53 µm · 45–106 µm | LPBF |
| Pure copper powder for 3D printing | 15–45 µm · 15–53 µm | LPBF |
| CuSn10 bronze powder | 15–45 µm · 15–53 µm | LPBF |