All data is for information only------(Home)
PRODUCT DATA of Incoloy 901
MaterialIncoloy 901
General InformationA 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
EXPERIENCE IN PRACTICE
Development StatusCommercial Product
PHYSICAL PROPERTIES
Specific Gravity8.14
ELECTRICAL PROPERTIES
Electrical Volume Resistivity1.12e-6 ohm.m
THERMAL PROPERTIES
Thermal Expansion Coefficient13.5 ustrain/C
Melting Range1280 to 1345 C
Specific Heat0.431 J/g.K
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
General Corrosion StatusNo specific corrosion protection required
Atmospheric CorrosionHas good corrosion resistance to the atmospheres normally found in jet engine operations. It has slightly lower scaling resistance than such alloy as Types 309 and 310 stainless steel.
Stress Corrosion StatusHigh Resistance to SCC: Table 1
Data Quality: Design Data
Bimetallic CorrosionCan be connected without any restriction to: 400 series Stainless steel
Can be connected in a non-controlled environment to the above and 300 series stainless steel, Ti and Ti-alloys, Cr, Cu, brasses, Cu-Ni, Al-bronzes, Si-bronzes,
Can be connected in a clean room environment to above and Ag, SnPb alloys, Sn, Pb, low C steel, Al-Cu alloys, Cd, Au
Needs specific measures: All others
Test:ECSS-Q-ST-70C Rev.1 Table 5.1
Data Quality: Design Data
WeldingCan be welded by the inert-gas-arc method. It is difficult to weld. All welding should be done in the solution treated condition