TIMET TIMETAL® EXHAUST XT™ Low Alloyed Titanium

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TIMET TIMETAL® EXHAUST XT™ Low Alloyed Titanium
Categories:	Metal; Nonferrous Metal; Titanium Alloy; Unalloyed/Modified Titanium
Material Notes:	TIMETAL® EXHAUST XT™ is a low-alloy content titanium alloy suited for automotive and motorcycle exhausts and other industrial applications. Substantial weight savings are possible by substitution for stainless steel. It has superior oxidation resistance and elevated temperature strength compared to other commercially pure titanium alloys. Data provided by TIMET.
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Physical Properties	Metric	English	Comments

Density	4.51 g/cc	0.163 lb/in³	Typical

Mechanical Properties	Metric	English	Comments
Tensile Strength, Ultimate	>= 414 MPa	>= 60000 psi	Annealed
	581 MPa	84300 psi	Sheet
	80.0 MPa @Temperature 775 °C	11600 psi @Temperature 1430 °F
	150 MPa @Temperature 650 °C	21800 psi @Temperature 1200 °F
	300 MPa @Temperature 425 °C	43500 psi @Temperature 797 °F
Tensile Strength, Yield	>= 345 MPa @Strain 0.2 %	>= 50000 psi @Strain 0.2 %	Annealed
	531 MPa @Strain 0.2 %	77000 psi @Strain 0.2 %	Sheet
	80.0 MPa @Strain 0.2 %, Temperature 775 °C	11600 psi @Strain 0.2 %, Temperature 1430 °F
	125 MPa @Strain 0.2 %, Temperature 650 °C	18100 psi @Strain 0.2 %, Temperature 1200 °F
	275 MPa @Strain 0.2 %, Temperature 425 °C	39900 psi @Strain 0.2 %, Temperature 797 °F
Elongation at Break	>= 20 %	>= 20 %	Annealed
	30 %	30 %	Sheet
	30 % @Temperature 425 °C	30 % @Temperature 797 °F
	68 % @Temperature 650 °C	68 % @Temperature 1200 °F
	85 % @Temperature 775 °C	85 % @Temperature 1430 °F
Creep Strength	69.0 MPa @Temperature 427 °C, Time 180000 sec	10000 psi @Temperature 801 °F, Time 50.0 hour	Creep Rate = 0.028%
	138 MPa @Temperature 427 °C, Time 180000 sec	20000 psi @Temperature 801 °F, Time 50.0 hour	Creep Rate = 0.108%
Bend Radius, Minimum	<= 2.0 t	<= 2.0 t	Sheet
	4.0 t	4.0 t	Annealed

Thermal Properties	Metric	English	Comments
CTE, linear	9.60 µm/m-°C @Temperature 25.0 - 100 °C	5.33 µin/in-°F @Temperature 77.0 - 212 °F
	10.0 µm/m-°C @Temperature 25.0 - 800 °C	5.56 µin/in-°F @Temperature 77.0 - 1470 °F
	10.4 µm/m-°C @Temperature 25.0 - 500 °C	5.78 µin/in-°F @Temperature 77.0 - 932 °F
Specific Heat Capacity	0.534 J/g-°C	0.128 BTU/lb-°F
Thermal Conductivity	15.90 W/m-K	110.3 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air	425 °C	797 °F	Continuous
	540 °C	1000 °F	Intermittent
Beta Transus	920 °C	1690 °F

Component Elements Properties	Metric	English	Comments
Carbon, C	<= 0.080 %	<= 0.080 %
Hydrogen, H	<= 0.015 %	<= 0.015 %
Iron, Fe	<= 0.30 %	<= 0.30 %
Nitrogen, N	<= 0.050 %	<= 0.050 %
Other, each	0.10 %	0.10 %
Other, total	0.40 %	0.40 %
Oxygen, O	<= 0.35 %	<= 0.35 %
Silicon, Si	0.15 - 0.60 %	0.15 - 0.60 %	Nominal 0.45%
Titanium, Ti	99.5 %	99.5 %	As Remainder

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NTIMEXT / 199546

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