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List of Alloys & profiles

List of Alloys & profiles

Alloy Wire International

Datasheet: Nimonic® 75

Nimonic® 75

Nimonic® 75 is a Nickel-Chromium alloy with good corrosion and heat resistance, and contains Titanium and Carbon as additives. Initially used as turbine blades in the 1940s, Nimonic® 75 is readily fabricated and welded, and is now more regularly used in gas turbine engines, industrial furnaces and nuclear engineering.

Nimonic® 75 is also known as Nicrofer 7520.

Available in all profile options

Nimonic® 75 - Alloy Wire International 1

Key Features

Nimonic® 75 offers the following key features:

Good corrosion resistance
Good heat resistance
**High temperature static applications

Typical Applications

Nimonic® 75 is known to be suitable for the following applications:

Aerospace fasteners


Designations

W.Nr 2.4951
W.Nr 2.4630
UNS N06075
AWS 032

Specifications

BS HR 5
BS HR 504

Chemical Composition

The chemical composition of Nimonic® 75 is indicated in the table below:

ElementMin %Max %
C0.080.15
Si0.30
Mn1.00
S0.15
Co5.00
Cr19.021.00
Cu0.50
Fe5.00
Pb0.005
Ti0.20.50
P0.015
Al0.40
Nibal

Alloy Details

Nimonic® 75 density, melting point, coefficient of expansion, modulus of rigidity, and elasticity is indicated in the table below:

DensityMelting PointCoefficient of ExpansionModulus of RigidityModulus of Elasticity
8.37 g/cm³1380 °C11.0 μm/m °C (20 – 100 °C)75.6 kN/mm²206 kN/mm²
0.302 lb/in³2520 °F6.1 x 10-6 in/in °F (70 – 212 °F)10965 ksi29878 ksi

Heat treatment of finished parts

The typical heat treatment of Nimonic® 75:

Condition as supplied by AWITypeTemperatureTimeCooling
Annealed or Spring TemperStress Relieve450 – 470 °C (840 – 880 °F)0.5 – 1Air

Properties

The typical mechanical properties of Nimonic® 75:

Annealed
Approx. tensile strength<800 N/mm²<116 ksi
Approx. operating temperature depending on load** and environment -200 to +1000 °C-330 to +1830 °F
Spring Temper
Approx. tensile strength1200 – 1500 N/mm²174 – 218 ksi
Approx. operating temperature depending on load** and environment -200 to +1000 °C-330 to +1830 °F

The above tensile strength ranges are typical. If you require different please ask.

*Trade name of Special Metals Group of Companies ** High temperature static applications = still/fixed/motionless/rigid