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TECHNICAL DATA
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Property
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Low-Phosphorus
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Mid-Phosphorus
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High-Phosphorus
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Composition
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3 to 4% P, balance Ni
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6 to 9% P, balance Ni
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11 to 12% P, balance Ni
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Structure
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Micro- crystalline
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Mixed crystalline and amorphous
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Amorphous
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Internal Stress
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-10 MPa
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+40 MPa
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-20 MPa
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Final Melting Point
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1275º C
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1000º C
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880ºC
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Density
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8.6 g/cm3
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8.1 g/cm3
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7.8 g/cm3
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Coefficient of Thermal Expansion
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12.4 m m/m-º C
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13 m m/m-º C
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12.0 m m/m-º C
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Electrical Resistivity
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30 mW - cm
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75 mW -cm
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100 mW - cm
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Thermal Conductivity
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0.6 Wcm-K
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0.05 W/cm-K
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0.08 W/cm-K
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Specific Heat
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1,000 J/kg-K
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ND
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460 J/kg-K
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Magnetic Coercivity
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10,000 A/m
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110 A/m
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0
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Tensile Strength
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300 MPa
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900 MPa
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800 MPa
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Ductility
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0.70%
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0.70%
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1.50%
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Modulus of Elasticity
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130 GPa
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100-120 GPa
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170 GPa
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Hardness, as deposited
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700 HV100
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600 HV100
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530 HV100
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Hardness, heat treated
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960 HV100
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1000 HV100
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1050 HV100
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Coefficient of Friction
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ND
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0.38
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0.45
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Taber Wear Index, as deposited
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11 mg/1,000 cycles
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16 mg/1,000 cycles
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19 mg/1,000 cycles
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Taber Wear Index, heat treated
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9 mg/1,000 cycles
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12 mg/1,000 cycles
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12 mg/1,000 cycles
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Corrosion Protection, salt fog resistance
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24 hours
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96 hours
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1,000 hours
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