Copper alloy metal powder

The range of Osprey® metal powder includes pure copper and a wide variety of copper alloy metal powder used in a used in processes, such as additive manufacturing, metal injection moulding (MIM) and micro-MIM.

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The program includes:

  • General copper alloys
  • Copper alloys for brazing
  • Copper alloys for thermal spray

Other copper alloys are also available. Contact us to discuss our full range of metal powder alloys.

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General copper alloys

Pure copper and copper alloys for a wide range of applications.

Selected copper alloys incl. chemical composition (nominal), %
Alloy (UNS) Description Cu Fe Ni Mn P Sn Al O
OFHC Cu Oxygen-free high-conductivity copper ≥99.99
-
-
-
-
-
-
 ≤0.15
HC Cu High-conductivity copper ≥99.95
-
-
-
-
-
-
 ≤0.3
Cu10Al Aluminium Bronze Bal. 1.5-
3.5		 1.0
1.0
 - 1.0 8.5-
10.5		 -
Cu10Sn Phosphor Bronze Bal.
-
-
-
 0.10-
0.35		 9.2-
11.0
-
 -
Cu15Sn Phosphor Bronze Bal.
-
-
-
 0.10-
0.35		 13.0-
15.0
-
 -

Copper alloys for brazing

Copper alloys suitable for use as filler metal for brazing applications.

Selected copper brazing alloys incl. chemical composition (nominal), %
Alloy Melting range, ºC1) Cu P Ag Mn Ni Sn
CuMnNi 1 965–995 Bal. - - 10.0  2.0 -
CuMnNi 2 905–925  Bal. - - 20.0 2.0 -
CuMnNi 3 910–933 Bal. 0.352) - 20.0 10.0 -
B 8 880–1030  Bal. 0.352) - - - 8.0
B 10 850–1010 Bal. 0.352) - - - 10.0
B 12 820–1000 Bal. 0.352) - - - 12.0
B 15 800–950 Bal. 0.352) - - - 15.0 
B 20 800–890 Bal. 0.352) - - - 20.0 

1) Approximate values. 2) Maximum value

Copper alloys for thermal spray

The Osprey range of copper thermal spray alloys includes:

  • Self-bonding alloys
  • Flame spraying and metallizing alloys

Self-bonding copper alloys

Self-bonding copper alloy with optimum characteristics for applications where a single metallized coating is preferred. With adequate surface preparation and suitable thermal spraying equipment, high-density coatings are produced with high bond strengths. For corrosive environments, the deposit will require a sealant. ≥

Self-bonding copper alloy incl. chemical composition (nominal), %
Alloy Cu Cr Ni Al Fe Mo
SB 85 Bal. - - 10.0 3.0 -

Flame spraying and metalizing copper alloys

Gas atomized metal powder suitable for flame spraying or metalizing, without subsequent fusion of the coating. Good surface preparation is fundamental to the success of this process and the application of a bond coat (SB 80) is recommended.

Selected copper alloys for flame spraying or metalizing incl. chemical composition (nominal), %
Alloy Description Cu Al Fe Ni
AB 1 Aluminium bronze Bal. 9.5 2.5 1.0
AB 2 Aluminium Ni/Fe bronze Bal. 9.5 4.5 5.5
Cu 100 Pure copper 99.90 - - -

Cold spray copper alloys

High-purity copper powder with low oxygen content where high thermal and electrical conductivity in the coating is required.

Selected copper alloys for cold spray incl. chemical composition (nominal), %
Alloy Description Cu O
HC Cu High purity copper ≥99.95 ≤0.05

Other copper alloys for thermal spray are also available. Contact us to discuss or full range of metal powder alloys.