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Properties of Paliney® 8
Paliney 8, a complex, heat-treatable alloy, was developed to fill the need for a lower cost contact alloy of nickel-chromium resistance wires with the strength, hardness, and wear resistance similar to that of Paliney 7. The advantages that this alloy offers are as follows; the metal cost is substantially less than that of Paliney 7, Paliney 8 provides low wear, stable contact resistance, and low electrical noise when used as a sliding contact for nickel-chromium resistance wire alloys. It also has good corrosion resistance, long shelf life, high strength, and hardness.
View Properties Table
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Properties of Paliney 8 |
Annealed |
Ductile
Heat-Treated |
Heat-Treated*
(Age-Hardened) |
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Resistivity, normal, ohm-cmf |
180 |
150 |
150 |
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Microhm cm |
29.9 |
24.9 |
24.9 |
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Conductivity, % IACS, nominal |
5.8 |
6.9 |
6.9 |
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Density, grams/cc, nominal |
10.8 |
10.8 |
10.8 |
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Dwt./cu. in., nominal |
114 |
114 |
114 |
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Solidus Temperature |
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F, nominal |
1780 |
1780 |
1780 |
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C, nominal |
970 |
970 |
970 |
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Coefficient of Linear Expansion |
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F(70 - 212F) nominal |
7.5x10(-6) |
7.5x10(-6) |
7.5x10(-6) |
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C(20 - 100C) nominal |
13.5x10(-6) |
13.5x10(-6) |
13.5x10(-6) |
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Thermal EMF Versus Platinum - (0 - 100C), uv/C, nominal |
-18 |
-18 |
-18 |
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Fatigue strength (rotating - bending) at 10(8) cycles, psi |
- |
40,000 |
40,000 |
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Megapascals |
- |
275 |
275 |
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Modulus of Elasticity, psi nominal |
16x10(6) |
16x10(6) |
16x10(6) |
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Megapascals |
110x10(3) |
110x10(3) |
110x10(3) |
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Proportional Limit, psi, nominal |
70,000 |
125,000 |
155,000 |
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Megapascals |
480 |
860 |
1070 |
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Ultimate Tensile Strength, psi |
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Wire .005-.020 dia., Rolled Shapes |
100,000-125,000 |
150,000-195,000 |
190,000-240,000 |
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Strip .003-.015 thick |
100,000-125,000 |
140,000-180,000 |
170,000-230,000 |
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Elongation, % in 2", min. |
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Wire .005 - .020 dia. |
20 min |
5 min |
1 min |
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Strip .003 - .015 thick |
15 min |
4 min |
1 min |
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Knoop Hardness, (100-gram load) |
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(50-gram under .005 thick) |
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Wire .003 - .060 dia., Rolled Shapes |
200 - 260 |
300 - 360 |
360 – 450 |
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Strip .003 - .015 thick |
200 - 260 |
300 - 360 |
340 – 420 |
*Forming or bending is not recommended for this "temper" of alloy.
The information contained in this Data Sheet is intended to assist you in the use of this product. It is not intended to and does not create any warranties, express or implied, including any warranty of merchantability or fitness for a particular application. The user should determine the suitability of this material for each application. Data is subject to change without notice.
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