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Nimonic 75*

Available in any of the 'profile options'

Nimonic 75 is a Nickel-Chromium alloy with good corrosion and heat resistance.

Chemical Composition Specifications Designations Key Features Typical Applications
Element Min % Max %
C 0.08 0.15
Si - 0.30
Mn - 1.00
S - 0.15
Co - 5.00
Cr 19.0 21.00
Cu - 0.50
Fe - 5.00
Pb - 0.005
Ti 0.2 0.50
P - 0.015
Al - 0.40
Ni bal
BS HR 5
BS HR 504
W.Nr 2.4951
W.Nr 2.4630
UNS N06075
AWS 032
Good corrosion resistance
Good heat resistance
High temperature static applications **
Aerospace fasteners
Density 8.37g/cm³ 0.302 lb/in³
Melting Point 1380°C 2520°F
Coefficient of Expansion 11.0 μm/m °C (20 - 100°C) 6.1 x 10-6 in/in °F (70 - 212°F)
Modulus of Rigidity 75.6 kN/mm² 10965 ksi
Modulus of Elasticity 206 kN/mm² 29878 ksi
Heat Treatment of Finished Parts
Condition as supplied by Alloy Wire Type Temperature Time (Hr) Cooling
°C °F
Annealed or Spring Temper Stress Relieve 450 - 470 840 - 880 0.5 - 1 Air
Properties
Condition Approx. tensile strength Approx. operating temperature
N/mm² ksi °C °F
Annealed 700 - 800 102 - 116 -200 to +1000 -330 to +1830
Spring Temper 1200 - 1500 174 - 218 -200 to +1000 -330 to +1830

* Trade name of Special Metals Group of Companies

** High temperature static applications = still/fixed/motionless/rigid

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