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TIMET TIMETAL® 834 (Ti-5.8Al-4Sn-3.5Zr-0.7Nb-0.5Mo-0.35Si-0.06C) 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® 834 (Ti-5.8Al-4Sn-3.5Zr-0.7Nb-0.5Mo-0.35Si-0.06C) Titanium Alloy.pdf
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Material Notes:
High-Strength, High Temperature, Creep Resistant AlloyIndustry Specifications: France: T-A6EZ r4Nb.Features: TIMETAL 834 is a near alpha titanium alloy offering increased tensile strength and creep resistance up to 600°C together with improved fatigue strength when compared with established creep resistant alloys such as TIMETAL 6-2-4-2, TIMETAL 829 and TIMETAL 685. Like these alloys, it is weldable and has good forgeability. Major uses for TIMETAL 834 include rings, compressor discs and blades for aeroengines. It is nonmagnetic.Typical heat treatment for this alloy: Solution heat treatment: 1015°C for 2 hours, oil quench. Aging heat treatment: 700°C for 2 hours, air cool.Data provided by TIMET.
Physical Properties Metric English Comments
Density 4.55 g/cc
0.164 lb/in³
Typical
Mechanical Properties Metric English Comments
Tensile Strength, Ultimate 1050 MPa
152000 psi
Typical
Tensile Strength, Yield 930 MPa

@Strain 0.200 %
135000 psi

@Strain 0.200 %
Typical
Elongation at Break 11 %
11 %
Typical
Reduction of Area >= 15 %
>= 15 %
Modulus of Elasticity 120 GPa
17400 ksi
Typical
Notched Tensile Strength >= 1493 MPa
>= 216500 psi
Kt=3
Fatigue Strength <= 350 MPa

@# of Cycles 1.00e+7
<= 50800 psi

@# of Cycles 1.00e+7
Notched; Kt = 2; stress range 0 to 350 Mpa
560 MPa

@# of Cycles 1.00e+7
81200 psi

@# of Cycles 1.00e+7
unnotched, stress range 0 to 560 Mpa
Fracture Toughness >= 45.0 MPa-m½
>= 41.0 ksi-in½
K(IC)
Bend Radius, Minimum 6.0 t

@Thickness 2.00 mm
6.0 t

@Thickness 0.0787 in
Typical; sheet
Thermal Properties Metric English Comments
CTE, linear 10.6 µm/m-°C

@Temperature 20.0 - 200 °C
5.89 µin/in-°F

@Temperature 68.0 - 392 °F
10.9 µm/m-°C

@Temperature 20.0 - 400 °C
6.06 µin/in-°F

@Temperature 68.0 - 752 °F
10.9 µm/m-°C

@Temperature 20.0 - 600 °C
6.06 µin/in-°F

@Temperature 68.0 - 1110 °F
Thermal Conductivity 7.06 W/m-K
49.0 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 600 °C
1110 °F
Good tensile and creep to 600°C
Beta Transus 1045 °C
1913 °F
Component Elements Properties Metric English Comments
Aluminum, Al 5.5 - 6.1 %
5.5 - 6.1 %
Carbon, C 0.040 - 0.080 %
0.040 - 0.080 %
Hydrogen, H <= 0.0060 %
<= 0.0060 %
Iron, Fe <= 0.050 %
<= 0.050 %
Molybdenum, Mo 0.25 - 0.75 %
0.25 - 0.75 %
Niobium, Nb (Columbium, Cb) 0.50 - 1.0 %
0.50 - 1.0 %
Nitrogen, N <= 0.030 %
<= 0.030 %
Oxygen, O 0.075 - 0.15 %
0.075 - 0.15 %
Silicon, Si 0.20 - 0.60 %
0.20 - 0.60 %
Tin, Sn 3.0 - 5.0 %
3.0 - 5.0 %
Titanium, Ti 81 - 87.4 %
81 - 87.4 %
Calculated as remainder
Zirconium, Zr 3.0 - 5.0 %
3.0 - 5.0 %
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