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CuSn0,2
EN: -
UNS: C14410
MANUFACTURERS LIST
Aurubis
STOLBERG PNA 215
KM Europa Metal AG
KME STOL 80

CuSn0,2 alloy is a tin bearing copper with low phosphorus as a deoxidizer. Material has higher than pure copper softening temperature and good creep, stress relaxation fatigue resistance. The alloy permits good corrosion resistance and has no stress cracking corrosion. Material has good formability at medium strength and good conductivity.  Hot dip tinning, soldering and electroplating

Applications

Main applications are connected with heat and electric current transfer in electro-industry, electronics, automotive. Possible applications: heat exchangers, radiator fins, connectors and connector pins, high current capacity electrical wires, conductors and cables (especially automotive cables, super fine coaxial cables, busbars and other solid and multi-wire conductors), fuse/ relay boxes, punch screen, stamped and bent parts in electro industry, pins, electric terminals and micro-terminals, electric clamps,  different carriers, electronic parts carriers, leadframes, electrical springs for lower loads, contacts and sliding contacts parts, electrical switches, semiconductor devices, different electro-automotive parts, chemical and medical equipment, wire electro discharge cutting systems.

Literature

Rolled strips, rolled tinned strips,  rolled profiles with different height, extruded round or polygonal  rods, extruded sections, extruded tubes, drawn round or polygonal wires, drawn tubes

Chemical composition

Chemical composition
Value Comments
Cu [ wt.% ]99,515-99,895
Calculated
Fe [ wt.% ]0-0,05

P [ wt.% ]0,005-0,02

Pb [ wt.% ]0-0,015

Sn [ wt.% ]0,10-0,20

Zn [ wt.% ]0-0,1

Others [ wt.% ]0-0,1

Mechanical properties

Mechanical properties
UTS
[MPa]
YS
[MPa]
Elongation
[%]
HardnessYoung’s modulus
[GPa]
Kirchhoff’s modulus
[GPa]
Poisson ratio
220-460
98-410
2-25
60-1340
Comments:
HV
118-120
44
0,34

Material's mechanical and electrical properties in different tempers

Temper

Ultimate Tensile Strength UTS [MPa]

0,2%Yield Strength YS [MPa]

Elongation at break during tensile test A50 [%]

Hardness [HV]

 Literature

R250 H60

min250

min. 140

min 20

60-85

R300 H85

300-370

min.270

min. 10

80-110

R360 H105

360-430

min. 310

min. 7

110-130

R420 H120

420-490

min. 370

min. 5

120-150

R460 H135

min. 460

min. 410

min. 4

min. 135

Material's mechanical and electrical properties in different tempers (non European standards)

Temper

Ultimate Tensile Strength UTS [MPa]

0,2%Yield Strength YS [MPa]

Elongation at break during tensile test A50 [%]

Hardness [HV]

Literature 

0

max. 216

-

min. 25

max. 90

1/4H

216-294

98-196

min 25

65-110

1/2H

255-333

216-304

min.12

75-110

H

314-392

294-373

min 5

95-130

EH (spring)

350-430

min.333

-

200-140

Levels of electrical and mechanical properties of material in different temper

Elongation at break vs ultimate tensile strength at ambient temperature for material in different temper

Ultimate tensile strength of material as a function of cold working strain calculated via formula based on approximation of different experimental data

Exploitation properties

Vickers hardness as a function of heating temperature for 30 min heating time (hardness test at ambient temperature after heating), material in hard temper (H) and extra hard temper (EH)

Vickers hardness as a function of heating time at 300oC (hardness test at ambient temperature after heating), material temper R420

Literature for entire paragraph:

Softening temperature about 400-450oC

Material resistant to hydrogen embrittlement

Type of corrosion

Suitability

Literature

Atmospheric

good

Marine environment

good

Stress crack

resistant

Hydrogen embrittlement

resistant

 -

Electrolytic

good

Other - oxidising acids

bad

Stress relaxation data for material in R460 temper. Remaining stress as a function of loading time (log scale) at temperatures 100oC, 150oC, 200oC, initial stress 50% YS and 80%YS, tests in parallel and transverse directions to rolling direction

NO DATA AVAILABLE

The fatigue strength is dependent on the temper and it is approximately 1/3 of the tensile strength under bending load for 107 load cycles.

NO DATA AVAILABLE
Fabrication properties

Fabrication properties
Value Literature Comments
Solderingexcellent


Brazingexcellent


Hot dip tinningexcellent


Electrolytic tinningexcellent


Electrolytic silveringgood


Laser weldinggood


Gas Shielded Arc Weldingexcellent


Capacity for Being Cold Workedexcellent


Capacity for Being Hot Formedexcellent


Formability properties

Thickness t [mm] up to 0,5mm

Direction

Temper

R250 H60

R300 H85

R360 H105

R420 H120

R460 H135

90o

transverse

0xt

0xt

0xt

1xt

1xt

parallel

0xt

0xt

0xt

1xt

1,5xt

180o

transverse

0xt

0xt

0,5xt

1xt

1,5xt

parallel

0xt

0xt

1xt

1,5xt

2xt

Technological properties

Technological properties
Melting temperature
[°C]
Casting temperature
[°C]
CastabilityAnnealling temperature
[°C]
Homogenization temperature
[°C]
Quenching temperature
[°C]
Ageing temperature
[°C]
Stress relievieng temperature
[°C]
Hot working temperature
[°C]
No data No data No data 250-650
Comments:
Annealling time: 1-3h
No data No data No data 150-200
Comments:
Stress relievieng time: 1-3h
800-950
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