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CAC92 CDA No. 72500 |
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CAC92
is a copper alloy containing a solid solution of Ni and Sn
which was originally developed in USA and modified by Kobe
Steel for commercial production. It has excellent corrosion
resistance and solderability and strength equivalent to phosphor
bronze, showing high cost performance. |
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Features |
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1.
Excellent
solderability.
2.
High
elastic modulus.
3.
Good
platability with various type of plating.
4.
Good
resistance to stress relaxation.
5.
No
stress corrosion cracking.
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Chemical
Composition |
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Cu:
Residual, Ni: 8.5-10.5, Si: 1.8-2.8 |
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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 |
|
8.9
g/cm3 |
16.6x10-6/K |
0.46x102
W/mK |
15.7
uohm.cm |
11%
IACS |
1.24x105
N/mm2 |
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Mechanical
Properties |
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Temper
Grade |
Tensile
Strength
(N/mm2) |
Elongation
(%) |
Vickers
Hardness
(For
reference) |
Spring
Limit
(N/mm2)
(For
reference)
|
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O |
max
420 |
min
30 |
max
120 |
- |
|
1/4H |
345-445 |
min
20 |
85-135 |
- |
|
1/2H |
410-515 |
min
10 |
115-160 |
min
215 |
|
H |
465-570 |
min
9 |
140-180 |
min
295 |
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EH |
515-620 |
min
8 |
160-190 |
min
365 |
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SH |
550-650 |
min
7 |
170-200 |
min
410 |
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ESH |
600-700 |
min
5 |
185-210 |
min
530 |
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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 |
0.1-5.0 |
max
520 |
max
1600 |
- |
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Strip |
0.1-1.0 |
6-520 |
- |
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, connectors, bus-bars, various electrical
components. |
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