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Specialty Compounds RTP Company

TIMET TIMETAL® 50A CP Titanium (ASTM Grade 2)
Categories: Metal; Nonferrous Metal; Titanium Alloy; Unalloyed/Modified Titanium

Material Notes: Commercially Pure Titanium.

Industry Specifications: USA Aerospace: AMS 4902, 4941. Germany Engineering: 3.7035. Germany Aerospace: 3.7034. France: T-40. UK Aerospace Specifications BS TA. 2, 3, 4, 5.

Features: The mechanical properties of CP titanium are influenced by small additions of oxygen and iron. By careful control of these additions, the various grades of commercially pure titanium are produced to give properties suited to different applications. TIMETAL 50A is equivalent to ASTM Grade 2. It is the "workhorse" for industrial applications, having a guaranteed minimum 0.2% yield strength and good ductility and formability. It is used extensively for sea water piping, reactor vessels and heat exchangers throughout the CPI, Petrochemical, Oil and Gas and Naval/Marine markets. This alloy is also ASME approved, has good impact properties at low temperatures, and has excellent resistance to erosion and corrosion by seawater and marine atmospheres. It can be easily welded, machined, cold worked, hot worked, and cast. It is nonmagnetic.

Typical heat treatment for this alloy: Anneal at 700°C for 1 hour and air cool. Stress Relieve at 500°C for 30 mins and air cool.

Data provided by TIMET.

Key Words: UNS R50400
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Physical PropertiesMetricEnglishComments
Density 4.51 g/cc0.163 lb/in³Typical
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 485 MPa70300 psiTypical
 178 MPa
@Temperature 450 °C
25800 psi
@Temperature 842 °F
 186 MPa
@Temperature 400 °C
27000 psi
@Temperature 752 °F
 229 MPa
@Temperature 300 °C
33200 psi
@Temperature 572 °F
 280 MPa
@Temperature 200 °C
40600 psi
@Temperature 392 °F
 383 MPa
@Temperature 100 °C
55500 psi
@Temperature 212 °F
Tensile Strength, Yield 345 MPa
@Strain 0.2 %
50000 psi
@Strain 0.2 %
Typical
 74.0 MPa
@Strain 0.2 %,
Temperature 450 °C
10700 psi
@Strain 0.2 %,
Temperature 842 °F
 92.0 MPa
@Strain 0.2 %,
Temperature 400 °C
13300 psi
@Strain 0.2 %,
Temperature 752 °F
 127 MPa
@Strain 0.2 %,
Temperature 300 °C
18400 psi
@Strain 0.2 %,
Temperature 572 °F
 192 MPa
@Strain 0.2 %,
Temperature 200 °C
27800 psi
@Strain 0.2 %,
Temperature 392 °F
 256 MPa
@Strain 0.2 %,
Temperature 100 °C
37100 psi
@Strain 0.2 %,
Temperature 212 °F
Elongation at Break 28 %28 %Typical
 31 %
@Temperature 100 °C
31 %
@Temperature 212 °F
 34 %
@Temperature 450 °C
34 %
@Temperature 842 °F
 37 %
@Temperature 200 °C
37 %
@Temperature 392 °F
 38 %
@Temperature 400 °C
38 %
@Temperature 752 °F
 43 %
@Temperature 300 °C
43 %
@Temperature 572 °F
Reduction of Area 57 %57 %Typical
Modulus of Elasticity 105 - 120 GPa15200 - 17400 ksiTypical
Fatigue Strength  154 MPa
@# of Cycles 1.00e+7
22300 psi
@# of Cycles 1.00e+7
Notched, Kt=3; rotating bend
 232 MPa
@# of Cycles 1.00e+7
33600 psi
@# of Cycles 1.00e+7
Smooth, Kt=1; rotating bend
Bend Radius, Minimum 2.5 t2.5 tTypical; on 0.078 in (2 mm) sheet
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.0000530 ohm-cm0.0000530 ohm-cm
 
Thermal PropertiesMetricEnglishComments
CTE, linear  8.60 µm/m-°C
@Temperature 20.0 - 100 °C
4.78 µin/in-°F
@Temperature 68.0 - 212 °F
 9.50 µm/m-°C
@Temperature 20.0 - 300 °C
5.28 µin/in-°F
@Temperature 68.0 - 572 °F
 9.70 µm/m-°C
@Temperature 20.0 - 500 °C
5.39 µin/in-°F
@Temperature 68.0 - 932 °F
Thermal Conductivity 21.79 W/m-K151.2 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 425 °C797 °FContinuous
 540 °C1000 °FIntermittent
Beta Transus 915 °C1680 °F
 
Component Elements PropertiesMetricEnglishComments
Carbon, C <= 0.080 %<= 0.080 %
Hydrogen, H <= 0.015 %<= 0.015 %
Iron, Fe <= 0.30 %<= 0.30 %
Nitrogen, N <= 0.030 %<= 0.030 %
Other, each <= 0.10 %<= 0.10 %
Other, total <= 0.40 %<= 0.40 %
Oxygen, O <= 0.25 %<= 0.25 %
Titanium, Ti >= 98.9 %>= 98.9 %Calculated as remainder

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NTIME50A / 19301

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