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CuZr0,15
EN: CW120C
UNS: C15100
MANUFACTURERS LIST
Aurubis
CuZr
Wieland-Werke AG
CuZr0,15(K82)

CuZr0,15 is a alloy that can be hardened by cold forming and moderately by precipitation of CuZr during a heat treatment. It has good bendability, excellent hot and cold forming, a high mechanical, electrical and thermal conductivity properties and good corrosion resistance.

Applications

It is used to manufacture elements to: automotive switches and relays, contacts, electrical connectors, terminals, electrical - electronic circuits, electrical connectors, lead frames, switches, switch blade jaws, commutators for power transmitters, basses for power transmitters, rectifiers, soldering and welding tips, circuit breakers, spring contact. Literature:

Switches and relays, connectors, terminals, electronic circuits, leadframe, commutators for power, transmitters, basses for power transmitters, rectifiers, soldering and welding tips, circuit breakers.

Chemical composition

Chemical composition
Value Comments
Cu [ wt.% ]99,85-99,95
Calculated
Zr [ wt.% ]0,05-0,15

Mechanical properties

Mechanical properties
UTS
[MPa]
YS
[MPa]
Elongation
[%]
HardnessYoung’s modulus
[GPa]
Kirchhoff’s modulus
[GPa]
Poisson ratio
255-490
60-455
2-35
32-62
Comments:
Rockwell B
121
46,4
0,3
Comments:
Calculated

Material's mechanical and electrical properties in different tempers/ diameters -wires

Temper

Tensile strength, MPa

Yield strength (min), MPa

Elongation (min) A50mm

Hardness Rockwell B

Literature

R280 (H01)

280-310

190

13

 -

R300 (H02)

300-360

280

6

 -

R320 (H03)

320-390

310

5

 -

R360 (H04)

360-430

350

4

 -

R400 (H06)

400-450

390

3

 -

R440 (H08)

440-490

430

2

 -

H01

295

240

32

32

H02

325

295

10

38

H03

360

345

5

48

H06

430

415

2

60

H08

470

455

2

62

Annealed  (O61)

255

60

35

-

ASTM

Electrical conductivity vs. temper CuZr0,15

Electrical resistivity (20°C): Annealed - 0,00000181 ohm*cm,  Rolled – 0,00000192 ohm*cm

Exploitation properties

Plot of hardness change versus temperature as an indication of stability of lead frame materials during assembly processes. Yield strength of each alloy before thermal exposure is shown in parentheses.

NO DATA AVAILABLE

Weight-loss of specimens exposed in NaCl solution atmosphere of Cu0.36Cr, Cu, Cu0.36Cr0.11Zr , CuZr0.15 (Note: NaCl atmospheric corrosion test in salt spray chamber (in salt mist of 50 g NaCl/l) in the temperature of 35°C, in accordance with ISO 3768-1976 standard) .

Type of corrosion

Suitability

Literature

Atmospheric

Good

Marine environment

Good

Stress crack

Resistant

Hydrogen embrittlement

No data

 -

Electrolytic

No data

 -

Other

-

 -

NO DATA AVAILABLE

Plot showing stress for 100 hour rupture life at several temperature - powder metallurgical alloy

Plots of cumulative volume loss vs time for copper and its alloys under 20 N at (a) 0 A, (b) 30 A and (c) 50 A. (Note: Cu-wire cold drawn, copper alloys – age hardened).  Examinations were performed by pin-on-disc tribometer. The negative sample was the S30400 disc made of stainless steel. Examinations were carried out in an air atmosphere with the velocity of 31 km/h and under loading of 10 – 20 N on a roll sample at the diameter of 13 mm and length of 13 mm) .

Plots of cumulative volume loss vs time for copper and its alloys under load of (a) 10 N and (b) 15 N at 50 A. (Note: Cu-wire cold drawn, copper alloys – age hardened).  Examinations were performed by pin-on-disc tribometer. The negative sample was the S30400 disc made of stainless steel. Examinations were carried out in an air atmosphere with the velocity of 31 km/h and under loading of 10 – 20 N on a roll sample at the diameter of 13 mm and length of 13 mm) .

Sliding wear resistance for copper and its alloys under 20 N with and without current.  (Note: Cu-wire cold drawn, copper alloys – age hardened).  Examinations were performed by pin-on-disc tribometer. The negative sample was the S30400 disc made of stainless steel. Examinations were carried out in an air atmosphere with the velocity of 31 km/h and under loading of 10 – 20 N on a roll sample at the diameter of 13 mm and length of 13 mm)

Sliding wear resistance for various alloys under 20 N with and without current.  (Note: Cu-wire cold drawn, copper alloys – age hardened).  Examinations were performed by pin-on-disc tribometer. The negative sample was the S30400 disc made of stainless steel. Examinations were carried out in an air atmosphere with the velocity of 31 km/h and under loading of 10 – 20 N on a roll sample at the diameter of 13 mm and length of 13 mm) .

Plots of wear rate vs load for copper and its alloys at (a) 0 A, (b) 30 A and (c) 50 A. (Note: Cu-wire cold drawn, copper alloys – age hardened). Examinations were performed by pin-on-disc tribometer. The negative sample was the S30400 disc made of stainless steel. Examinations were carried out in an air atmosphere with the velocity of 31 km/h and under loading of 10 – 20 N on a roll sample at the diameter of 13 mm and length of 13 mm) .

Plots of wear rate vs current for copper and its alloys under (a) 10 N, (b) 15 N and (c) 20 N. (Note: Cu-wire cold drawn, copper alloys – age hardened).  Examinations were performed by pin-on-disc tribometer. The negative sample was the S30400 disc made of stainless steel. Examinations were carried out in an air atmosphere with the velocity of 31 km/h and under loading of 10 – 20 N on a roll sample at the diameter of 13 mm and length of 13 mm) .

The maximum bending load for 107 cycles without crack is measured. Dependent on the temper class it is approximately 1/3 of the tensile strength

Bending properties of CuZr0,15 a)-90° bending, b)-180° bending

NO DATA AVAILABLE
Fabrication properties

Fabrication properties
Value Literature Comments
SolderingExcellent


BrazingExcellent, Good


Hot dip tinningGood


Electrolytic tinningGood


Electrolytic silveringGood


Electrolytic nickel coatingGood


Laser weldingFair


Oxyacetylene WeldingNot Recommended


Gas Shielded Arc WeldingNot Recommended


Coated Metal Arc WeldingNot Recommended


Spot WeldNot Recommended


Seam WeldNot Recommended


Butt WeldGood


Capacity for Being Cold WorkedExcellent


Capacity for Being Hot FormedExcellent


Machinability Rating20


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