Chemical composition Element Weight percent Element Weight percent Ni 42.5 nominal Cr 12.5 nominal Mo 5.75 nominal Ti 2.9 nominal Fe Balance Co 1.0 max Cu 0.5 max Mn 0.5 max Si 0.4 max Al 0.35 max C 0.10 max S 0.03 max

Mechanical properties Typical 1,000-hour rupture strength, precipitation-hardened condition; Special Metals handbook, printed page 31. Product form and precise aging cycle are not stated for this summary table. Test temperature °C 1,000 h rupture strength MPa 540 800 595 600 650 450 705 300 760 200 Rupture stresses are not tensile acceptance values. The bulletin gives tensile curves rather than a numerical table. Typical forged-bar treatment is 3 h at 1090°C / water quench + 4 h at 775°C / air cool + 24 h at 705–720°C / air cool.

Application areas Gas turbine discs and shafts Turbine rings, casings and seals

Chemical composition Element Weight percent Element Weight percent Ni 42.5 nominal Cr 12.5 nominal Mo 5.75 nominal Ti 2.9 nominal Fe Balance Co 1.0 max Cu 0.5 max Mn 0.5 max Si 0.4 max Al 0.35 max C 0.10 max S 0.03 max

Mechanical properties Typical 1,000-hour rupture strength, precipitation-hardened condition; Special Metals handbook, printed page 31. Product form and precise aging cycle are not stated for this summary table. Test temperature °C 1,000 h rupture strength MPa 540 800 595 600 650 450 705 300 760 200 Rupture stresses are not tensile acceptance values. The bulletin gives tensile curves rather than a numerical table. Typical forged-bar treatment is 3 h at 1090°C / water quench + 4 h at 775°C / air cool + 24 h at 705–720°C / air cool.

Application areas Gas turbine discs and shafts Turbine rings, casings and seals

Alloy 901/Nimonic 901

Grade: Nimonic 901/UNS N09901/W.Nr.2.4662/Incoloy 901

Sheet/Plate: 0.3mm-150mm

Strip/Foil: 0.02mm-16mm

Pipe: 6mm*0.5mm-1200mm*100mm

Bar: Ф6mm – Ф600mm

Wire: Ф0.01mm – Ф6mm

Others: Forged Rings, Flanges, Elbows, Tees, Reducers etc.

Standard: ASTM/ASME/AMS

NIMONIC 901 is an age-hardenable nickel iron chromium alloy used for highly stressed turbine components. Molybdenum strengthens the matrix, and titanium with aluminum supports precipitation hardening. The alloy offers a useful balance of strength, creep resistance and forging capability. Discs and shafts are established applications, with performance depending on the specified solution, stabilization and aging treatments.

Chemical composition

Element	Weight percent	Element	Weight percent
Ni	42.5 nominal	Cr	12.5 nominal
Mo	5.75 nominal	Ti	2.9 nominal
Fe	Balance	Co	1.0 max
Cu	0.5 max	Mn	0.5 max
Si	0.4 max	Al	0.35 max
C	0.10 max	S	0.03 max

Mechanical properties

Typical 1,000-hour rupture strength, precipitation-hardened condition; Special Metals handbook, printed page 31. Product form and precise aging cycle are not stated for this summary table.

Test temperature °C	1,000 h rupture strength MPa
540	800
595	600
650	450
705	300
760	200

Rupture stresses are not tensile acceptance values. The bulletin gives tensile curves rather than a numerical table. Typical forged-bar treatment is 3 h at 1090°C / water quench + 4 h at 775°C / air cool + 24 h at 705–720°C / air cool.

Application areas

Gas turbine discs and shafts
Turbine rings, casings and seals

Introduction

Specification

Chemical composition

Element	Weight percent	Element	Weight percent
Ni	42.5 nominal	Cr	12.5 nominal
Mo	5.75 nominal	Ti	2.9 nominal
Fe	Balance	Co	1.0 max
Cu	0.5 max	Mn	0.5 max
Si	0.4 max	Al	0.35 max
C	0.10 max	S	0.03 max

Mechanical

Mechanical properties

Typical 1,000-hour rupture strength, precipitation-hardened condition; Special Metals handbook, printed page 31. Product form and precise aging cycle are not stated for this summary table.