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KLF-5 CDA No. 50715 |
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KFC-5
is copper alloy containing a small amount of Fe and P and
2% of Sn.
The
base material is low tin phosphor bronze which can be hot
rolled with a small amount of Fe and P compounds precipitated
and dispersed to achieve high strength and high electrical
conductivity, and high cost performance. |
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Features |
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1.
Heat
resistance temperature approximately 1000K higher
than phosphor bronze.
2.
Electrical
conductivity 40%-50% better than phosphor bronze.
3.
Excellent
solderability and platability.
4.
Better
resistance to stress corrosion cracking than phosphor bronze.
5.
Excellent
resistance to stress relaxation.
6.
Strength
equivalent to phosphor bronze.
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Chemical
Composition |
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Cu:
Residual, Sn: 1.8-2.2, Fe: 0.05-0.15, P: 0.025-0.040 |
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Physical
Properties |
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Specific
Gravity |
Thermal
Expansion Coefficient
(293-725K) |
Thermal
Conductivity
(293K) |
Volume
Resistivity
(293K) |
Electrical
Conductivity |
Longitudinal
Elasticity Coefficient |
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8.9
g/cm3 |
17.6x10-6/K |
1.34x102
W/mK |
4.9
uohm.cm |
35%
IACS |
1.21x105
N/mm2 |
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Mechanical
Properties |
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Temper
Grade |
Tensile
Strength
(N/mm2) |
Elongation
(%) |
Vickers
Hardness
(For
reference) |
Electrical
Conductivity
(%IACS)
(For
reference)
|
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1/2H |
min
390 |
min
10 |
min
150 |
min
30 |
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H |
min
540 |
min
7 |
min
180 |
min
30 |
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Product
Range (Unit: mm) |
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Shape |
Thickness |
Width |
Length |
Unit
Weight
(kg/1mm
width) |
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Plate |
0.1-6.0 |
max
500 |
max
1600 |
- |
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Strip |
0.1-2.5 |
6-500 |
- |
4 |
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Note:
(1) The spool diameter range from 150 mm to 500 mm in increments
of 50mm.
(2)
The coil spool is also available in resin and steel.
(3)
Strip with Tin plating is also available, however, only in
width less than 300 mm.
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Uses |
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IC
leadframes, terminals, various electrical components. |
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