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PRODUCT DATA of IMI 829
MaterialIMI 829
Product DatasheetIMI 829
General InformationTIMETAL 829 is a weldable, high strength, high temperature (540°C) creep resistant alloy specifically developed for gas turbine engine components. TIMETAL 829 is a near alpha alloy but includes both alpha and beta stabilizer alloying elements. TIMETAL 829 can be worked in the beta phase field, but to avoid the formation of an unacceptably large beta grain size, a process route involving alternate beta and alpha + beta working is recommended. data from timet
Chemical CompositionTi-5.6Al-3Zr-3.5Sn-1Nb-0.25Mo
Name of ManufacturerTIMET
The Hub,Holford Road, Witton, Birmingham B6 7AX, UK

+44 121 356-1155 EuroSales@timet.com
+44 121 356-5413
www.timet.com
PHYSICAL PROPERTIES
Specific Gravity4.54
Phase changesBeta transus at 1015C
Magnetic PropertiesNonmagnetic
THERMAL PROPERTIES
Thermal Conductivity6.9 W/m.K
Data Quality: Manufacturer's data
Thermal Expansion Coefficient9.45 μstrain/°C
Remark:From 20 to 200C
Data Quality: Manufacturer's data
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
Stress Corrosion StatusHigh Resistance to SCC: Table 1
Bimetallic CorrosionCan be connected without any restriction to: Cr, Cu, Brass, Cu-Ni alloys, Al-bronzes, Si-bronzes, Gun metal, P-bronzes, Sn-bronzes, Ag, 300 and 400 series stainless steel, low alloy steel, Au, Pt, C, Rh
Can be connected in a non-controlled environment to the above and Ni, Monel, Inconel, Ni-Mo alloys
Can be connected in a clean room environment to above and Cd, Al-Cu alloys
Needs specific measures: All others
Test:ECSS-Q-ST-70C Rev.1 Table 5.1
Data Quality: Design Data