Nickel Alloys

Nichrome V (™Driver Harris Co), Tophet A (™Wilbur B Driver Co)

Application & Characteristics 
Resists oxidation to 2100F. High electrical resistance at elevated temperatures in heating elements and cathode support sleeves.
Chemical Composition (%)
Ni 80.0; Cr 20.0
Physical Properties
Melting Range (°F)2550
Density (lbs/in³) 68F0.304
Thermal Expansion (in/in °Fx10 to the power of -6)7.9 (70 – 500F)
Electrical Resistivity (ohms/cir mil/ft.) 68F650
Mechanical Properties – Temper = A
Tensile Strength (psi x 10³)100
Yield Strength (psi x 10³)50
Elongation ( % )45
HardnessB80(Rockwell)
Mechanical Properties – Temper = H/2
Tensile Strength (psi x 10³)120
Yield Strength (psi x 10³)100
Elongation ( % )20
HardnessB95(Rockwell)
Mechanical Properties – Temper = H
Tensile Strength (psi x 10³)150
Yield Strength (psi x 10³)120
Elongation ( % )5
HardnessC25(Rockwell)

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