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
C1441R

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.
Application: Lead frame, heat sink, connectors used machines of electronics and relays.

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
C1441R-1/2H

 25~35 ＞10 60~120 — 118 ≧78 — 8.9 17.3 143~360
H

C1441P-H
C1441R-H

 28~40 ＞2 90~125 —
EH

C1441P-EH
C1441R-EH

 36~45 — 100~135 —
SH

C1441P-SH
C1441R-SH

 ＞39 — ＞115 —