   | CuSn0,15 EN: CW117C UNS: C14415 |    |
CuSn0,15 alloy is a tin bearing copper with higher than pure copper softening temperature and good creep, stress relaxation and 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 properties are excellent.
Main applications are connected with heat and electric current transfer in electro-industry, electronics and automotive. Possible applications: heat exchangers, radiator fins, connectors and connector pins, fuse/ relay boxes, punch screen, stamped and bent parts in electro-industry, 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, high current capacity electrical wires, conductors and cables (especially automotive cables, super fine coaxial cables, busbars and other solid and multi-wire conductors), semiconductor devices, different electro-automotive parts, chemical and medical equipment, wire electro discharge cutting systems.
Literature: 
Rolled plates, sheets, strips and folis, 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
|
Value | Comments | |
| Cu [ wt.% ] | 99,595-99,9 | Calculated | |
| Fe [ wt.% ] | 0-0,02 | ||
| Ni [ wt.% ] | 0-0,02 | ||
| P [ wt.% ] | 0-0,015 | ||
| Sn [ wt.% ] | 0,10-0,15 | ||
| Zn [ wt.% ] | 0-0,1 | ||
| Others [ wt.% ] | 0-0,1 | ||
|
Chemical composition, wt. % | ||||||
|---|---|---|---|---|---|---|
|
Sn |
Ni |
Fe |
P |
Zn |
Others |
Cu |
|
0,10-0,15 |
- |
- |
- |
- |
max. 0.04 |
Cu+Ag+Sn min. 99,96 |
|
Literature: |
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Mechanical properties
|
||||||
| UTS [MPa] | YS [MPa] | Elongation [%] | Hardness | Young’s modulus [GPa] | Kirchhoff’s modulus [GPa] | Poisson ratio |
| 220-460 | 100-410 | 2-25 | 60-135 Comments: HV | 110-130 | 45 | 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] |
Electrical conductivity [%IACS] |
Literature |
|---|---|---|---|---|---|---|
|
R250 H60 |
250-320 |
min. 140 |
9 |
60-90 |
min. 83 |
|
|
R300 H85 |
300-370 |
min. 250 |
4 |
85-110 |
min. 83 |
|
|
R360 H105 |
360-430 |
min. 320 |
3 |
105-130 |
min. 82 |
|
|
R420 H120 |
420-490 |
min. 350 |
2 |
120-140 |
min. 82 |
|
|
R460 H135 |
>460 |
min. 410 |
2 |
>135 |
min. 82 |
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 A [%] |
Hardness [HV] |
Literature |
|---|---|---|---|---|---|
|
O |
195-245 |
- |
min. 35 |
min. 55 |
|
|
1/4H |
215-275 |
- |
min.25 |
55-75 |
|
|
1/2H |
245-315 |
- |
min.15 |
75-90 |
|
|
H |
275-345 |
- |
min.4 |
90-105 |
|
|
EH |
min. 315 |
- |
min. 2 |
min. 100 |
Levels of electrical and mechanical properties of material in different tempers
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
Effect of tin content on electrical conductivity of copper
Vickers hardness as a function of heating time in different temperatures (hardness test at ambient temperature after heating), material in R300 temper
Vickers hardness as a function of heating time in different temperatures (hardness test at ambient temperature after heating), material in R360 temper
Vickers hardness as a function of heating time in different temperatures (hardness test at ambient temperature after heating), material in R420 temper
Variation of electrical conductivity and hardness with annealing temperature of material (conductivity and hardness tests at ambient temperature after heating)
Hardness changes as a function of heating temperature with 1h time, material cold worked 60% (hardness test at ambient temperature after heating)
Literature:
Softening temperature: 350-450°C
Type of corrosion | Suitability | Literature |
|---|---|---|
Atmospheric | Excellent |
|
Marine environment | Excellent |
|
Stress crack | Resistant |
|
Hydrogen embrittlement | no data | - |
Electrolytic | good |
|
Other - oxidizing acids | bad |
|
Residual stress during stress relaxation in different temperatures, material temper R 420, initial stress 50%YS
Variation of fatigue life with respect to stress amplitude for material with different tempers
Variation of fatigue life with respect to normalized stress amplitude for material with different tempers
|
Fabrication properties
|
Value | Literature | Comments | |
| Soldering | excellent | | ||
| Hot dip tinning | good | | ||
| Electrolytic tinning | good | | ||
| Electrolytic silvering | good | | ||
| Laser welding | good | | ||
| Oxyacetylene Welding | fair | No data | ||
| Gas Shielded Arc Welding | good | | ||
| Capacity for Being Cold Worked | excellent | | ||
| Capacity for Being Hot Formed | excellent | | ||
| Machinability Rating | 20 | | ||
Formability properties
Thickness t [mm] | Direction | Temper | ||||
|---|---|---|---|---|---|---|
R250 H60 | R300 H85 | R360 H105 | R420 H120 | R460 H135 | ||
0,10mm<t<0,25mm | transverse | 0xt | 0xt | 0xt | 1xt | 1,5xt |
parallel | 0xt | 0xt | 0xt | 1xt | 1,5xt | |
0,25mm<t<0,5mm | transverse | 0xt | 0xt | 0,5xt | 1xt | - |
parallel | 0xt | 0xt | 0,5xt | 1,5xt | - | |
|
Technological properties
|
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| Melting temperature [°C] | Casting temperature [°C] | Castability | Annealling temperature [°C] | Homogenization temperature [°C] | Quenching temperature [°C] | Ageing temperature [°C] | Stress relievieng temperature [°C] | Hot working temperature [°C] |
| 1065-1075 | 1140-1200 | 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 |
