Atomfair GRcop-42 Copper Alloy Powder

GRcop-42 is a precipitation-strengthened high-strength copper alloy developed for additive manufacturing. 3D-printed parts retain high strength at elevated temperatures, with good thermal conductivity, excellent creep resistance and low-cycle fatigue life. Suitable for SLM, used in engine combustion chambers, heat exchangers, induction coils.

Description

Precipitation-strengthened high-strength copper alloy powder specially developed for additive manufacturing.

Chemical Composition (wt.%)
Cu Balance
Cr 3.1-3.4
Nb 2.7-3.0
Fe <0.005
Si <0.01
Al <0.01
O โ‰ค0.04
Physical Properties
D10 (ฮผm) โ‰ฅ15
D50 (ฮผm) 30-40
D90 (ฮผm) โ‰ค60
Sphericity โ‰ฅ0.90
Apparent Density (g/cmยณ) โ‰ฅ4.3
Tapped Density (g/cmยณ) โ‰ฅ5.0
Flowability (s/50g) โ‰ค25
Mechanical & Thermal Properties
Condition Tensile Strength (MPa) Yield Strength (MPa) Elongation (%) Conductivity (IACS)
Heat-treated โ‰ฅ350 โ‰ฅ180 โ‰ฅ30.0 โ‰ฅ85%
Thermal Conductivity (W/(mยทK))
โ‰ฅ330

Applications: Engine combustion chambers, heat exchangers, induction coils.

Processing Method: SLM.