A-1 Wire Tech, Inc.
DURANICKEL® ALLOY 301

An age-hardened alloy that combines the excellent corrosion resistance characteristics of Nickel 200 with the added advantages of greater strength and hardness. The alloy is used for springs requiring high electrical conductivity, parts of equipment requiring good thermal conductivity, and magnetostrictive units which are operated under stress conditions for which the fatigue strength of Nickel 200 is inadequate.


Typical Mechanical Properties

Limiting Chemical Composition, %

Nia .... 93.0 min.
Mn ... 0.50 max.
Ti .... 0.25 – 1.00
Cu ... 0.25 max.
Fe .... 0.60 max.
C ..... 0.30 max.
Si ..... 1.00 max.
S ...... 0.01 max.
Al ... 4.00 – 4.75
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aPlus Co.

Physical Constants and Thermal Properties

Density, Ib/in3 (g/cm3) •••••• 0.296 (8.19)
Melting Range, °F (°C) •••••• 2550 – 2620 (1400 – 1440)
Specific Heat, Btu/lb •°F (J/kg • °C) •••••• 0.104 (435)
Curie TemperatureA, °F (°C) •••••• 200 (95)
Permeability at 200 OerstedA (15.9 kA/m) •••••• 10.58
Coefficient of ExpansionA, 10-6 in/in • °F (μm/m • °C)
70-200°F (21–93°C) •••••• 7.2 (13.0)
70-500°F (21–260°C) •••••• 7.7 (13.9)
70-800°F (21–427°C) •••••• 8.0 (14.4)
70-1000°F (21–538°C) •••••• 8.2 (14.8)
70-1200°F (21–650°C) •••••• 8.5 (15.3)
70-1400°F (21–760°C) •••••• 8.8 (15.9)
Thermal ConductivityA, Btu • in/ft2•h•°F (W/m•°C) •••••• 165 (23.8)
Electrical ResistivityA, ohm • circ mil/ft (μΩ•m) •••••• 255 (0.424)
Young's ModulusA 106 psi (GPa) •••••• 30.0 (207)
Poisson's RatioA •••••• 0.31
HardnessA, HRC •••••• 30 – 42

Aroom temperature, as aged.

Specifications and Designation

UNS N03301


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