Products
Copper-Tin Alloy
C1441
Copper-Tin Alloy is a high-performance alloy. It has both high electrical and high thermal conductivity. It is often used in lead frame materials and the cooling fins of PCB. It also has corrosion and thermal softening resistance due to the presence of tin (0.1%-0.2%).

Copper-Tin Alloy: corrosion resistant and thermal softening resistant
Chemical Composition
Type No. | Alloy No. | Symbol | Chemical Composition | Features & Application | |||||
---|---|---|---|---|---|---|---|---|---|
Plate Ribbon | Cu | Sn | Fe | Pb | P | Zn | |||
Copper-Tin Alloy |
C1441 |
C1441P |
REM |
0.1~0.2 0.1~0.2 |
<0.02 <0.02 |
<0.03 <0.03 |
0.001~0.020 0.001~0.020 |
<0.1 <0.1 |
Features: Good corrosion-resistance, good electricity and heat conduction, being electroplated well, high soften tem. |
Mechanical Properties & Physical properties
Alloy No. | Mechanical Properties | Physical Properties | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Quality Grade | Symbol | Tensile Strength (Kgf/mm2) |
Elongation | Hardness | Modulus of elasticity (GPa) |
Electric Conductivity (%IACS) |
Specific heat capacity ﹝J/kg·k﹞ |
Density (g/cm3) |
Coefficient of thermal expansion (x10-6/K) | Thermal conductivity W/(m·K) |
||
Plate Ribbon | Standards | Minchali | ||||||||||
C1441 | 1/2H |
C1441P-1/2H |
25~35 | >10 | 60~120 | — | 118 | ≧78 | — | 8.9 | 17.3 | 143~360 |
H |
C1441P-H |
28~40 | >2 | 90~125 | — | |||||||
EH |
C1441P-EH |
36~45 | — | 100~135 | — | |||||||
SH |
C1441P-SH |
>39 | — | >115 | — |