NIMONIC 901-SHANGHAI KANGSHENG AVIATION MATERIALS TECHNOLOGY CO., LTD.

NIMONIC 901

NIMONIC ALLOY 901

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Product Description

A nickel-iron-chromium alloy containing titanium and aluminum for precipitation hardening and molybdenum for solid-solution strengthening. The alloy has high-yield strength and creep resistance at temperatures to about 1110°F (600°C). A substantial iron content enables the alloy to combine high strength with good forging characteristics. Used in gas turbines for discs and shafts.

STANDARD PRODUCT FORMS

Flat or round bar, extruded section and forging billet.

MAJOR SPECIFICATIONS

UNS N09901, BS HR55, SAE AMS 5660, 5661, AECMA Pr EN 2176 – 2178, Werkstoff Nr. 2.4662, ISO 9723, 9725

LIMITING CHEMICAL COMPOSITION, %

Ni^a.....40.0 – 45.0
Fe ......Remainder
Cr......11.0 – 14.0
Mo .........5.0 – 6.5
^aPlus Co.
Ti ...........2.8 – 3.1
Al .........0.35 max.
C ............0.1 max.
Si ...........0.4 max.
Cu..........0.5 max.
Mn .........0.5 max.
Co ..........1.0 max.
S ..........0.03 max.

PHYSICAL CONSTANTS AND THERMAL PROPERTIES

Density, Ib/in³ ........................................................................0.294
g/cm³ .........................................................................8.14
Melting Range, °F ...................................................2335 – 2455
°C ...................................................1280 – 1345
Specific Heat, Btu/lb • °F ....................................................0.103
J/kg • °C ...........................................................431
Permeability at 200 Oersted (15.9 kA/m) ....................1.013
Coefficient of Expansion, 68 – 212°F, 10^-6 in/in • °F .......7.5
20 – 100°C, µm/m • °C .........13.5
Electrical Resistivity, ohm • circ mil/ft ...............................674
µ Ω• m ................................................1.12

TYPICAL MECHANICAL PROPERTIES