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TIMET TIMETAL® 6-2-4-2 (Ti-6Al-2Sn-4Zr-2Mo-0.08Si) Titanium Alloy

Category Metal , Nonferrous Metal , Titanium Alloy , Alpha/Near Alpha 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® 6-2-4-2 (Ti-6Al-2Sn-4Zr-2Mo-0.08Si) Titanium Alloy.pdf
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Material Notes:
Medium-Strength, Elevated Temperature AlloyIndustry Specifications: USA Aerospace: AMS 4919.Features: TIMETAL 6-2-4-2 has good tensile creep and fatigue properties up to 540°C. It is the most commonly used high temperature alloy in jet engine compressors and airframe structures. It is also used in sheet melt form for engine afterburner structure and for various hot airframe skin applications. It is nonmagnetic.Typical heat treatment for this alloy: Rough forging: 1038°C. Stress relief anneal: 482-649°C for 1-4 hrs, air cool. Solution treatment: 15-30°C below beta transus for 1 hour, water quench. Aging: 538-593°C for 8 hrs, air cool. Data provided by TIMET.
Physical Properties Metric English Comments
Density 4.54 g/cc
0.164 lb/in³
Typical
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 1000 MPa
145000 psi
Typical
Tensile Strength, Yield 895 MPa

@Strain 0.200 %
130000 psi

@Strain 0.200 %
Typical
Elongation at Break 12 %
12 %
Typical
Reduction of Area 42 %
42 %
Modulus of Elasticity 115 GPa
16700 ksi
Typical
Fatigue Strength 500 MPa
72500 psi
Limit; test specifics not reported
500 MPa
72500 psi
Limit; test specifics not reported
Bend Radius, Minimum 4.5 t
4.5 t
Typical; on 0.078 in (2 mm) sheet
Thermal Properties Metric English Comments
CTE, linear 7.70 µm/m-°C

@Temperature 0.000 - 100 °C
4.28 µin/in-°F

@Temperature 32.0 - 212 °F
Thermal Conductivity 6.92 W/m-K
48.0 BTU-in/hr-ft²-°F
Melting Point <= 1705 °C
<= 3101 °F
Liquidus 1705 °C
3101 °F
Maximum Service Temperature, Air 538 °C
1000 °F
Long Term
Beta Transus 996 °C
1820 °F
Component Elements Properties Metric English Comments
Aluminum, Al 5.5 - 6.5 %
5.5 - 6.5 %
Carbon, C <= 0.080 %
<= 0.080 %
Hydrogen, H 0.010 - 0.0125 %
0.010 - 0.0125 %
Iron, Fe <= 0.25 %
<= 0.25 %
Molybdenum, Mo 1.8 - 2.2 %
1.8 - 2.2 %
Nitrogen, N <= 0.050 %
<= 0.050 %
Oxygen, O <= 0.15 %
<= 0.15 %
Silicon, Si 0.060 - 0.13 %
0.060 - 0.13 %
Tin, Sn 1.8 - 2.2 %
1.8 - 2.2 %
Titanium, Ti 83.6 - 87.2 %
83.6 - 87.2 %
Calculated as remainder
Zirconium, Zr 3.6 - 4.4 %
3.6 - 4.4 %
Electrical Properties Metric English Comments
Electrical Resistivity 0.000185 ohm-cm
0.000185 ohm-cm
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