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CuZr, CuCr1Zr and CuNiSi Products

When both high conductivity and strong resistance to softening are required.

Copper Rods

Luvata’s products from copper alloys for demanding applications CuZr (15000), CuCr1Zr (C18150) and CuNiSi are always tailor made to customer needs. Our flexible manufacturing operations and unique tool room enable us to make a large selection of sizes and shapes from all these alloys. We are constantly expanding our range of CuZr, CuCr1Zr and CuNiSi alloys according to customers’ more demanding applications. Currently, we serve industries like automotive welding and E-Mobility.

Applications

  • Electrical Motors and Generators
  • Casting Molds
  • Welding Materials
  • Commutators

Innovative Products & Unique Solutions

In Luvata, the production of CuZr, CuCr1Zr, and CuNiSi copper alloy products always starts with examining the customer’s specific needs. Luvata’s specialists possess extensive knowledge of copper alloys and can efficiently provide solutions for customers. Our flexible manufacturing operations and unique tool room allow a large selection of sizes and shapes to be made from all these alloys. We provide quantities ranging from small samples to large orders.

Copper Alloys for Demanding Applications

CuNiSi alloys are a group of different compositions that match with for example the standard alloys C18000, C70260, CW111C. These copper alloys are precipitation hardening alloys that have their unique properties made by aging heat treatment. They are excellent for hot forming and in some cases, further cold working can improve the mechanical properties. Welding applications and components for electrical motors and generators typically require a combination of high temperature hardness and high conductivity for the most demanding conditions. Good mechanical properties and good thermal conductivity make these alloys suitable for different water-cooled components, such as structural cooling elements and casting and extrusion molds. Aged temper offers also high fatigue resistance and durability for wear and corrosion.

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Why Luvata?

Luvata’s expertise comes from dedicated processes and strong process know-how. Our approach involves maintaining open communication with customers to identify precise solutions that address their requirements and truly create value. We are constantly expanding our range of CuZr, CuC1Zr and CuNiSi copper alloys according to customers’ more demanding applications. We can offer any quantity from test patches to large scale requirements.

Manufacturing Locations

Technical Data

High temperature alloys are manufactured with many different processes. They are available in various shapes and sizes.

Cast billets 
∅ 210 mm, ∅ 278 mm & 730 x 180 mm
Round rodsØ 3 – 160 mm 
Wires Ø 2 – 25 mm 
Hexagon and square rods8 – 32 mm 
Other products e.g. flat shapes by request 

Different tempers are made with varying the amount of cold work. Please consult Luvata for the best option.

AlloyENASTMHardnessElectrical conductivityTensile strengthElongation
MS/mIACS%N/mm2A5 %
CuZrCuZr/CW120CC15000HV: 115-140
HB: 116-140
min 5285-92350-43010-25
CuCrZrCuCrZr/CW106CC18150HV: 120-170
HB: 120-160
min 4475-90460-56010-20
CuNiSiCuNiSi/CW111CC70260HV: 130-240
HB: 130-222
min 2238-51420-7809-16
CuNiSiCrCuNiSiCr/CW111CC18000HV: 220-250
HB: 208-240
min 2238-51650-8009-15
CuNiSiCrZrHV: 180-220
HB: 172-208
min 2238-51650-800> 5

Softening behaviour – resistance against softening

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