
Hard Copper Alloys
Hard copper alloy with high thermal conductivity and high mechanical properties combined with good hardness and high temperature strength.
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Strongly hardened copper alloy with high hardness and good electrical and thermal conductivity.
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
rough / semi / finished acc to drawing.

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.
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
rough / semi / finished acc to drawing.

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.
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
rough / semi / finished acc to drawing.

Delivery Conditions
Cr
Zr
Others
Cu
1 %
0,1 %
0,2 %
Balance
Hardness
Tensile Strength
Yield Strength
Elongation (L=5D)
130 - 160 HB
420 - 470 N/mm2
330 - 370 N/mm2
18 %
min. 75 % IACS
320 W/mK
8.9 g/cm3
Electrical Conductivity
Thermal Conductivity
Density
Forged and solution heat treated.
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
rough / semi / finished acc to drawing.

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.
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
rough / semi / finished acc to drawing.

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.
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.
rough / semi / finished acc to drawing.

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.
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.
rough / semi / finished acc to drawing.

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.