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

Applications include:

  • Aerospace Fasteners

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Approximate Chemical Composition
Ni 80% min
Cr 19.5%
DENSITY 8.37 g/cm3 0.302 lb/in3
MELTING POINT 1380oC 2520oF
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/m2 10965 ksi
MODULUS OF ELASTICITY 206 kN/m2 29878 ksi
 
CONDITION OF SUPPLY HEAT TREATMENT (AFTER FORMING)
Annealed/Spring Tempered Stress relieve at 450 - 470°C (840 - 880°F) for 30 - 60 minutes and air cool.
 
CONDITION  

APPROX TENSILE STRENGTH

 

APPROX SERVICE TEMPERATURE

Solution Annealed 700-800 N/mm2 102-116 ksi -200 to 1100°C -330 to 2010°F
      (for lightly stressed applications)
Cold Drawn 1200-1500 N/mm2 174-218 ksi -200 to 1100°C -330 to 2010°F
      (for lightly stressed applications)
 
STANDARDS
BS HR 5 BS HR 504
 
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