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TIMET TIMETAL® 679 (Ti-11Sn-5Zr-2.25Al-1Mo-0.2Si) Titanium Alloy; Quenched & Aged

Category Metal , Nonferrous Metal , Titanium Alloy , Alpha/Beta Titanium Alloy
Manufacturer TIMET
Trade Name TIMETAL®
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF TIMET TIMETAL® 679 (Ti-11Sn-5Zr-2.25Al-1Mo-0.2Si) Titanium Alloy; Quenched & Aged.pdf
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Material Notes:
High-Temperature, High-Strength Creep Resistant AlloyIndustry Specifications: USA Aerospace: AMS 4974.Features: TIMETAL 679 has excellent tensile strength and is creep resistant up to 450°C. It is a three-phase alloy at room temperature, having an alpha + beta + compound field and a maximum temperature of 925°C is recommended. It is nonmagnetic.Typical heat treatment for this alloy: Solution heat treatment: 900°C for 30 min, air cool. Aging heat treatment: 500°C for 24 hrs, air cool.Data provided by TIMET.
Physical Properties Metric English Comments
Density 4.84 g/cc
0.175 lb/in³
Typical
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate >= 1110 MPa
>= 161000 psi
Tensile Strength, Yield >= 970 MPa

@Strain 0.200 %
>= 141000 psi

@Strain 0.200 %
Elongation at Break >= 8.0 %
>= 8.0 %
Reduction of Area 43 %
43 %
Modulus of Elasticity 105 - 110 GPa
15200 - 16000 ksi
Typical
Fatigue Strength 610 - 670 MPa
88500 - 97200 psi
Limit; test specifics not reported
Shear Modulus 46.0 GPa
6670 ksi
Thermal Properties Metric English Comments
CTE, linear 8.30 µm/m-°C

@Temperature 20.0 °C
4.61 µin/in-°F

@Temperature 68.0 °F
Thermal Conductivity 8.30 W/m-K
57.6 BTU-in/hr-ft²-°F
Beta Transus 950 °C
1740 °F
Component Elements Properties Metric English Comments
Aluminum, Al 2.0 - 2.5 %
2.0 - 2.5 %
Hydrogen, H <= 0.0125 %
<= 0.0125 %
Iron, Fe <= 0.20 %
<= 0.20 %
Molybdenum, Mo 0.80 - 1.2 %
0.80 - 1.2 %
Oxygen, O <= 0.20 %
<= 0.20 %
Silicon, Si 0.10 - 0.50 %
0.10 - 0.50 %
Tin, Sn 10.5 - 11.5 %
10.5 - 11.5 %
Titanium, Ti 77.9 - 82.6 %
77.9 - 82.6 %
Calculated as remainder
Zirconium, Zr 4.0 - 6.0 %
4.0 - 6.0 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.000160 ohm-cm
0.000160 ohm-cm
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