List of Alloys & profiles

List of Alloys & profiles

Alloy Wire International

Datasheet: Nimonic® 80A

Nimonic® 80A

Nimonic 80A is a Nickel-Chromium alloy which is precipitation hardenable. It has largely been superseded by Nimonic 90 and Inconel X-750, but because of the low Cobalt content, it is still specified for nuclear applications.

Nimonic® 80A is also known as Nicrofer 7520 Ti, Pyromet 80A, Superimphy 80A, and Udimet 80A.

Available in all profile options

alloy featured image inconel Nimonic® 80A

Key Features

Largely superseded by Nimonic 90 & Inconel X-750
Still specified for nuclear applications due to low cobalt content
Age hardenable
High temperature dynamic applications^^

Typical Applications

Gas turbine components
Nuclear industry
Fasteners


Designations

W.Nr 2.4952
W.Nr 2.4631
UNS N07080
AWS 031

Specifications

ASTM B637
BS 3076 NA 20
BS HR 1
BS HR 601

Chemical Composition

ElementMin %Max %
C0.040.10
Si1.00
Mn1.00
S0.015
Ag0.0005
Al1.001.80
B0.008
Bi0.0001
Co2.00
Cr18.0021.00
Cu0.20
Fe1.50
Pb0.002
Ti1.82.70
Nibal

Alloy Details

DensityMelting PointCoefficient of ExpansionModulus of RigidityModulus of Elasticity
8.19 g/cm³1365 °C12.7 μm/m °C (20 – 100 °C)85 kN/mm²222 kN/mm²
0.296 lb/in³2490°F7.1 x 10-6 in/in °F (70 – 212 °F)12328 ksi32199 ksi

Heat treatment of finished parts

Condition as supplied by AWITypeTemperatureTimeCooling
AnnealedAge Harden700 °C (1290 °F)16 HrAir
Spring TemperAge Harden600 °C (1110 °F)16 HrAir

Properties

Annealed
Approx. tensile strength<1000 N/mm²<145 ksi
Approx. operating temperature depending on load** and environment
Annealed + Aged
Approx. tensile strength1200 – 1400 N/mm²174 – 203 ksi
Approx. operating temperature depending on load** and environment up to 550 °Cup to 1020 °F
Spring Temper
Approx. tensile strength1300 – 1500 N/mm²189 – 218 ksi
Approx. operating temperature depending on load** and environment
Spring Temper + Aged
Approx. tensile strength1500 – 1800 N/mm²218 – 261 ksi
Approx. operating temperature depending on load** and environment up to 350 °Cup to 660 °F

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

*Trade name of Special Metals Group of Companies ^^ Dynamic applications = active / lively / changing