Titanium Ti-5Al-5Sn-2Zr-2Mo-0.25Si (Ti-5522S)

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Titanium Ti-5Al-5Sn-2Zr-2Mo-0.25Si (Ti-5522S)
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Alpha/Beta Titanium Alloy
Material Notes:	Heat treatment: 975 °C, 1/2 hour, AC and 595 °C, 2 hours, AC Characteristics: Alpha-beta alloy, good elevated temperature creep properties, good tensile properties, good stress rupture behavior, good thermal stability. Weldable, formable. Applications: Parts for gas-turbine engines
Key Words:	UNS R54560
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Physical Properties	Metric	English	Comments

Density	4.52 g/cc	0.163 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell C	32 - 38	32 - 38
Tensile Strength	900 - 1048 MPa	131000 - 152000 psi
	689 MPa @Temperature 535 °C	99900 psi @Temperature 995 °F
Tensile Strength, Yield	830 - 965 MPa	120000 - 140000 psi
	517 MPa @Temperature 535 °C	75000 psi @Temperature 995 °F
Elongation at Break	10 %	10 %
	15 % @Temperature 535 °C	15 % @Temperature 995 °F
Reduction of Area	25 %	25 %
	35 % @Temperature 535 °C	35 % @Temperature 995 °F
Creep Strength	>= 345 MPa @Temperature 510 °C, Time >=360000 sec	>= 50000 psi @Temperature 950 °F, Time >=100 hour	strain 1%
Rupture Strength	>= 1170 MPa @Temperature 23.0 °C, Time 18000 sec	>= 170000 psi @Temperature 73.4 °F, Time 5.00 hour	Notched specimen
Tensile Modulus	113.8 GPa	16510 ksi
Poissons Ratio	0.326	0.326
Fracture Toughness	82.4 MPa-m½	75.0 ksi-in½	For forging with yield strength = 890 MPa
Shear Modulus	42.9 GPa	6220 ksi	Calculated
Charpy Impact	22.0 J	16.2 ft-lb	notched

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000171 ohm-cm	0.000171 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	10.2 µm/m-°C @Temperature 20.0 - 815 °C	5.67 µin/in-°F @Temperature 68.0 - 1500 °F
Melting Point	<= 1700 °C	<= 3090 °F
Liquidus	1700 °C	3090 °F
Beta Transus	980 °C	1800 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	4.5 - 5.5 %	4.5 - 5.5 %
Carbon, C	<= 0.040 %	<= 0.040 %
Iron, Fe	<= 0.15 %	<= 0.15 %
Molybdenum, Mo	1.75 - 2.25 %	1.75 - 2.25 %
Nitrogen, N	<= 0.030 %	<= 0.030 %
Oxygen, O	<= 0.13 %	<= 0.13 %
Silicon, Si	0.20 - 0.30 %	0.20 - 0.30 %
Tin, Sn	4.5 - 5.5 %	4.5 - 5.5 %
Titanium, Ti	85 %	85 %
Zirconium, Zr	1.75 - 2.25 %	1.75 - 2.25 %

References for this datasheet.

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MTP5522 / 142956

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