Nomonic 105

┃ Material

Alloy 105, Nimonic® 105, W.Nr.2.4634, BS HR 3, GH4105

Note that Nimonic® 105 is a registered trade mark of Special Metals Corporation group of companies.

┃ Overview

Alloy 105 is a wrought nickel-cobalt-chromium-base age hardening alloy strengthened by additions of molybdenum, aluminum and titanium. It has been developed for service up to 950°C, and combines the high strength of the age-hardening nickel-base alloys with good creep resistance.

┃ Application

Alloy 105 is used for thermal turbine blades, materials for key high temperature components of ultra-supercritical thermal turbine, discs, aero-engine turbine blades, forgings, ring sections, bolts and fasteners, etc.

┃ Chemical composition (wt%)

*Reference to the ‘balance’ of an alloy’s composition does not guarantee this is exclusively of the element mentioned, but that it predominates and others are present only in minimal quantities

┃ Mechanical property 

The data given in Table below represent the tensile properties for extruded section subsequently cold rolled after the 3-stage heat treatment.

Strain rate 0.005/min to proof stress (at room temperature), 0.002/min to proof stress (at elevated temperatures) and 0.1/min thereafter.

Table below heat treatment 4 h/1150°C/AC + 16 h/1050-1065°C/AC + 16 h/850°C/AC

┃ Available Process

(1) Hot formed, solution annealed, descaled

(2) Cold worked and bright annealed

(3) Cold worked, bright annealed, polished (MP, EP etc.)

┃ Common Tests

Chemical composition

Tension

Hardness

Flaring

Flange

Flattening

Micro structure

Hydrostatic

NDT

Intergranular Corrosion

Surface condition

Shape and dimension

Positive Material Identification