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Hard Copper Alloys

Hard copper alloy with high thermal conductivity and high mechanical properties combined with good hardness and high temperature strength. 

Strongly hardened copper alloy with high hardness and good electrical and thermal conductivity.

CuCoNiBe

Cobalt Nickel Beryllium Copper

Norms

Description

Applications

Available Forms

UNS C17500

DIN 2.1285

R.W.M.A.

Class III

Strongly hardened copper alloy with high hardness and good electrical and thermal conductivity.

Chemical Composition

Mechanical Properties

  • Spot Welding Electrodes

  • Seam Welding Wheels / Discs for Stainless Steel Sheets

  • Mesh Welding Electrodes

  • Butt Welding Electrodes

  • Plunger Tips for Cold Chamber Aluminum Die Casting 

  • Moulds for Non-Ferrous Metal Casting.

Physical Properties

Cut to size from premachined forms.

gm1.png

Delivery Conditions

Co

Ni

Be

Cu

1,1 %        

1,1 %          

0.5 %

Balance

Hardness

Tensile Strength

Yield Strength

Elongation (L=5D)

220 - 260 HB

700 - 900 N/mm2

490 - 550 N/mm2

> 8 %

min. 44 % IACS 

200 - 220 W/mK

8.75 g/cm3

Electrical Conductivity

Thermal Conductivity

Density

Forged and solution heat treated.

CuCo2Be

Cobalt Beryllium Copper

Norms

Description

Applications

Available Forms

UNS C17500

DIN 2.1285

R.W.M.A.

Class III

After hot forging, it gains high resistance and conductivity by precipitation hardening and thermal ageing process. Compared to CuCoNiBe, CuCo2Be has slightly better mechanical and physical properties.

Chemical Composition

Mechanical Properties

  • Spot Welding Electrodes 

  • Seam Welding Wheels/Discs for Stainless Steel Sheets

  • Mesh Welding Electrodes

  • Butt Welding Electrodes

  • Plunger Tips for Cold Chamber Aluminum Die Casting Machines

  • Moulds for Non-Ferrous Metal Casting.

Physical Properties

Cut to size from premachined forms.

gm1.png

Delivery Conditions

Co

Ni

Be

Cu

2,5 %        

0,3 %          

0.5 %

Balance

Hardness

Tensile Strength

Yield Strength

Elongation (L=5D)

220 - 260 HB

700 - 900 N/mm2

490 - 550 N/mm2

> 8 %

min. 44 % IACS 

200 - 220 W/mK

8.75 g/cm3

Electrical Conductivity

Thermal Conductivity

Density

Forged and solution heat treated.

CuCrZr

Chromium Zirconium Copper

Norms

Description

Applications

Available Forms

UNS C18150

DIN 2.1293

R.W.M.A.

Class II

After hot forging, it gains high resistance and conductivity by precipitation hardening and thermal ageing process.

Chemical Composition

Mechanical Properties

  • Spot Welding Electrodes

  • Seam Welding Wheels / Discs for Mild Steel & Galvanised Steel Sheets 

  • Steel & Aluminum Continuous Casting Molds 

  • Ingot moulds for gravity die casting of brass & copper

  • Electrodes of spark erosion machines (E.D.M.) 

  • Welding tools in plastic packaging.

Physical Properties

Cut to size from premachined forms.

gm1.png

Delivery Conditions

Cr

Zr

Others

Cu

1 %        

0,1 %          

0,2 %

Balance

Hardness

Tensile Strength

Yield Strength

Elongation (L=5D)

130 - 160 HB

370 - 400 N/mm2

300 - 320 N/mm2

18 %

min. 78 % IACS 

320 W/mK

8.9 g/cm3

Electrical Conductivity

Thermal Conductivity

Density

Forged and solution heat treated.

CuNiSiCr

Beryllium Free Copper

Norms

Description

Applications

Available Forms

UNS C18000

DIN 2.0855

R.W.M.A.

Class III

High mechanical properties with high strength and thermal conductivity combined with good toughness at high temperatures.

Chemical Composition

Mechanical Properties

  • Plunger tips for cold chamber aluminum and magnesium die casting. 

  • Spot welding electrodes

  • Seam welding wheels/discs 

  • Butt welding dies for stainless steel

  • Electrode holders & seam welding shafts

  • Plastic injection mould parts and inserts

  • Chill moulds for non-ferrous metal castings (brass, bronze…etc)

Physical Properties

Cut to size from premachined forms.

gm1.png

Delivery Conditions

Ni

Si

Cr

Cu

2,5 %        

0,7 %          

0,4 %

Balance

Hardness

Tensile Strength

Yield Strength

Elongation (L=5D)

200 - 220 HB

660 - 690 N/mm2

500 - 520 N/mm2

13 %

min. 44 % IACS 

210 W/mK

8.7 g/cm3

Electrical Conductivity

Thermal Conductivity

Density

Forged and solution heat treated.

CuBe2

Standard Beryllium Copper

Norms

Description

Applications

Available Forms

UNS C17200

DIN 2.1247

R.W.M.A.

Class IV

Strongly age hardenable copper alloy with excellent cold formability, high corrosion resistance, and good electrical conductivity.

Chemical Composition

Mechanical Properties

  • Flash Welding Dies 

  • Rim & Chain Welding

  • Safety Tools Due to Non-Sparking

  • Non-Magnetic & Corrosion Resistance Products

  • Chill Plates & Inserts in Plastic Moulding

Physical Properties

Cut to size from premachined forms.

gm1.png

Delivery Conditions

Be

Co+Ni

Others

Cu

2 %        

0,5 %          

0.5 %

Balance

Hardness

Tensile Strength

Yield Strength

Elongation (L=5D)

340 - 380 HB

1100 - 1300 N/mm2

1000 N/mm2

4 - 5 %

min. 22 % IACS 

106 W/mK

8.3 g/cm3

Electrical Conductivity

Thermal Conductivity

Density

Forged and solution heat treated.

CuCr

Chromium Copper

Norms

Description

Applications

Available Forms

UNS C18200

DIN 2.1291

R.W.M.A.

Class II

Strongly hardened copper alloy with high termal and electric conductivity.

  • Moderate cold working. 

  • Bending applications.

  • Resistance welding electrodes.

  • Electrical industry components.

  • Stamped parts.

  • Relay springs.

  • Semi-conductor components.

Cut to size from premachined forms.

gm1.png

Chemical Composition

Mechanical Properties

Physical Properties

Delivery Conditions

Cr

Others

Cu

0,6 1,2 %        

0,2 %

Balance

Hardness

Tensile Strength

Yield Strength

Elongation (L=5D)

120 - 135 HB

>465 N/mm2

450 N/mm2

>18 %

76-80 % IACS 

320 W/mK

8.9 g/cm3

Electrical Conductivity

Thermal Conductivity

Density

Forged and solution heat treated.

CuNiBe

Nickel Beryllium Copper

Norms

Description

Applications

Available Forms

UNS C17510

DIN 2.0850

R.W.M.A.

Class III

It has lower hardness and tensile strength according to CuCrZr. This alloy has the same corrosion resistance as pure copper.

  • Spot welding electrodes

  • Seam welding wheels/discs for stainless steel sheets

  • Mesh welding electrodes

  • Butt welding electrodes 

  • Plunger tips for cold chamber aluminum die casting machines 

  • Moulds for non-ferrous metal casting.

Cut to size from premachined forms.

gm1.png

Chemical Composition

Mechanical Properties

Physical Properties

Delivery Conditions

Ni

Be

Cu

2 %        

0,5 %

Balance

Hardness

Tensile Strength

Yield Strength

Elongation (L=5D)

235 - 260 HB

720 - 830 N/mm2

620 - 740 N/mm2

min. 10 %

45 % IACS 

250 W/mK

8.9 g/cm3

Electrical Conductivity

Thermal Conductivity

Density

Forged and solution heat treated.