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What is NiColoy®
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NiColoy® is NiCoForm, Inc.'s class of proprietary electrodeposited Nickel-Cobalt alloys distinguished by the following combination of features:
- Leveled, semi bright or fully bright deposit with low internal stress
- High tensile strength
- Medium-to-high hardness
- High modulus of elasticity
- High corrosion resistance
- High purity
- Amenable to soldering, brazing and welding
We produce two modifications of NiColoy® - high strength and high hardness, depending on the target application. The harder deposit is more suitable for mold inserts and mold repair applications. The high strength deposit exhibits a unique combination of elasticity and plasticity and is used to electroform bellows and other dynamic components. Please see the accompanying table and charts for a comparison of properties of the two varieties of NiColoy®.
As can be seen from the charts, the high strength alloy possesses lower yield, ultimate tensile strength, hardness and a higher elongation. Such metals are conventionally described as 'ductile'. The high hardness alloy possesses lower elongation, but greater hardness and strength. Such materials are conventionally described as 'brittle'.
Comparative Properties of NiColoy® and Nickel
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Property
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High Hardness NiColoy®
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High Strength NiColoy®
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Electroformed Nickel
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Comments
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Ultimate Tensile Strength (psi)
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210,000
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150,000
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91,500
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NiColoy® has a higher breaking point than Nickel
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Yield Strength (psi)
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185,000
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120,000
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61,000
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NiColoy® resists permanent deformation better than Nickel
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Hardness, RC
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50 - 55
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45 - 50
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< 20 |
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Modulus of Elasticity in Bending (psi)
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24,000,000
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22,000,000
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21,000,000
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NiColoy® has greater elasticity than Nickel
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Poisson’s Ratio
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0.31
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0.31
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0.31
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Shear Modulus (psi)
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9,200,000
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8,400,000
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8,000,000
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Elongation at Break
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0.5 - 2%
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3 - 5%
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15 - 25%
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Composition
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Nickel – 95% Min
Cobalt – balance
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Nickel – 95% Min
Cobalt – balance
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Nickel
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Max Temp Rating (°F)
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600
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600
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350
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NiColoy® retains its mechanical properties at a higher temperature than Nickel
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Data contained in this table is for informational purposes only and may be revised at any time without prior notice. Nothing contained in this document should be construed as guaranteeing the materials for a particular use or application. |
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