MatWeb - Material Property Data Advertise with MatWeb!     Register Now
Data sheets for over 180,000 metals, plastics, ceramics, and composites.
MatWeb - Material Property Data HOME  •   SEARCH  •   TOOLS  •   SUPPLIERS  •   FOLDERS  •   ABOUT US  •   FAQ  •   LOG IN    
Recently Viewed Materials (most recent at top)  

Login to see your most recently viewed materials here.

Or if you don't have an account with us yet, then click here to register.

  Searches:   Advanced  | Category  | Property  | Metals  | Trade Name  | Manufacturer  | Recently Viewed Materials
  

Specialty Compounds RTP Company

TIMET TIMETAL® 21S Titanium Alloy (Ti-15Mo-3Nb-3Al-0.2Si, ASTM Grade 21); ST 1550°F (843°C) + Age 1275°F (691°C) and 1200°F (645°C)
Categories: Metal; Nonferrous Metal; Titanium Alloy; Beta Titanium Alloy
Material Notes: Mechanical property data for strip and sheet solution treated 1550°F (843°C) then air-cooled, then aged 1275°F (691°C) for 8 hours and 1200°F (645°C) for 8 hours.

High-Strength, Oxidation Resistant Strip Alloy

Features: Offers the good cold formability and weldability of a beta strip alloy, but with greatly improved oxidation resistance and creep strength. Aerospace applications include engine exhaust plug and nozzle assemblies. The alloy's resistance to aircraft hydraulic fluids, such as Skydrol, is excellent at all temperatures. It is well suited for metal matrix composites because it can be economically rolled to foil, is compatible with most fibers, and is sufficiently stable up to 816°C.

Typical heat treatment for this alloy: Solution treatment: 816-843°C (1500° - 1550°F) for 3-30 min, air cool. Age treatment: 510-679°C (950° - 1275°F) for 8-16 hrs.

Data provided by TIMET.
Key Words: Beta 21S; UNS R58210
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 4.94 g/cc0.178 lb/in³Typical
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate >= 862 MPa>= 125000 psi
Tensile Strength, Yield >= 793 MPa
@Strain 0.2 %		>= 115000 psi
@Strain 0.2 %
Elongation at Break >= 10 %>= 10 %
Modulus of Elasticity 100 GPa14500 ksiAged 1000°F (538C) for 8 hours
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity  0.000135 ohm-cm
@Temperature 24.0 °C		0.000135 ohm-cm
@Temperature 75.2 °F		Aged 1000°F (538°C)
 0.000142 ohm-cm
@Temperature 260 °C		0.000142 ohm-cm
@Temperature 500 °F		Aged 1000°F (538°C)
 0.000148 ohm-cm
@Temperature 538 °C		0.000148 ohm-cm
@Temperature 1000 °F		Aged 1000°F (538°C)
 0.000148 ohm-cm
@Temperature 816 °C		0.000148 ohm-cm
@Temperature 1500 °F		Aged 1000°F (538°C)
 
Thermal PropertiesMetricEnglishComments
CTE, linear  7.07 µm/m-°C
@Temperature 38.0 °C		3.93 µin/in-°F
@Temperature 100 °F		Aged 1000°F (538°C)
 7.90 µm/m-°C
@Temperature 93.0 °C		4.39 µin/in-°F
@Temperature 199 °F		Aged 1000°F (538°C)
 8.60 µm/m-°C
@Temperature 204 °C		4.78 µin/in-°F
@Temperature 399 °F		Aged 1000°F (538°C)
 8.90 µm/m-°C
@Temperature 316 °C		4.94 µin/in-°F
@Temperature 601 °F		Aged 1000°F (538°C)
 9.20 µm/m-°C
@Temperature 427 °C		5.11 µin/in-°F
@Temperature 801 °F		Aged 1000°F (538°C)
 9.50 µm/m-°C
@Temperature 538 °C		5.28 µin/in-°F
@Temperature 1000 °F		Aged 1000°F (538°C)
 10.3 µm/m-°C
@Temperature 816 °C		5.72 µin/in-°F
@Temperature 1500 °F		Aged 1000°F (538°C)
Specific Heat Capacity  0.490 J/g-°C
@Temperature 24.0 °C		0.117 BTU/lb-°F
@Temperature 75.2 °F		Aged 1000°F (538°C)
 0.536 J/g-°C
@Temperature 260 °C		0.128 BTU/lb-°F
@Temperature 500 °F		Aged 1000°F (538°C)
 0.594 J/g-°C
@Temperature 538 °C		0.142 BTU/lb-°F
@Temperature 1000 °F		Aged 1000°F (538°C)
 0.649 J/g-°C
@Temperature 816 °C		0.155 BTU/lb-°F
@Temperature 1500 °F		Aged 1000°F (538°C)
Thermal Conductivity  7.60 W/m-K
@Temperature 33.0 °C		52.7 BTU-in/hr-ft²-°F
@Temperature 91.4 °F		Aged 1000°F (538°C)
 11.8 W/m-K
@Temperature 259 °C		81.9 BTU-in/hr-ft²-°F
@Temperature 498 °F		Aged 1000°F (538°C)
 16.9 W/m-K
@Temperature 551 °C		117 BTU-in/hr-ft²-°F
@Temperature 1020 °F		Aged 1000°F (538°C)
 20.8 W/m-K
@Temperature 827 °C		144 BTU-in/hr-ft²-°F
@Temperature 1520 °F		Aged 1000°F (538°C)
Maximum Service Temperature, Air 593 °C1100 °FStructural Applications
Beta Transus 807 °C1480 °F
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 2.5 - 3.5 %2.5 - 3.5 %
Carbon, C <= 0.050 %<= 0.050 %
Hydrogen, H <= 0.015 %<= 0.015 %
Iron, Fe <= 0.40 %<= 0.40 %
Molybdenum, Mo 14 - 16 %14 - 16 %
Niobium, Nb (Columbium, Cb) 2.4 - 3.2 %2.4 - 3.2 %
Nitrogen, N <= 0.050 %<= 0.050 %
Other, each <= 0.10 %<= 0.10 %
Other, total <= 0.40 %<= 0.40 %
Oxygen, O 0.11 - 0.17 %0.11 - 0.17 %
Silicon, Si 0.15 - 0.25 %0.15 - 0.25 %
Titanium, Ti 76 - 80.8 %76 - 80.8 %Calculated as remainder

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

Users viewing this material also viewed the following:
TIMET TIMETAL® 21S Titanium Alloy (Ti-15Mo-3Nb-3Al-0.2Si, ASTM Grade 21); ST 1500°F (816°C) + Age 1000°F (538°C)
TIMET TIMETAL® 21S Titanium Alloy (Ti-15Mo-3Nb-3Al-0.2Si, ASTM Grade 21); 60% Cold Work
TIMET TIMETAL® 21S Titanium Alloy (Ti-15Mo-3Nb-3Al-0.2Si, ASTM Grade 21); 40% Cold Work
TIMET TIMETAL® 21S Titanium + Silicon Carbide Fiber Composite
TIMET TIMETAL® 21S Titanium Alloy (Ti-15Mo-3Nb-3Al-0.2Si, ASTM Grade 21); 80% Cold Work

NTIME21SF / 199879




Searches:   Advanced  •   Composition  •   Property  •   Material Type  •   Manufacturer  •   Trade Name  •   UNS Number
Other Links:   Advertising  •   Submit Data  •   Database Licensing  •   Web Design & Hosting  •   Trade Publications
Supplier List  •   Unit Converter  •   Reference  •   Links  •   Help  •   Contact Us  •   Site Map  •   FAQ  •   Home
 
Please read our License Agreement regarding materials data and our Privacy Policy. Questions or comments about MatWeb? Please contact us at info@matweb.com. We appreciate your input.

The contents of this web site, the MatWeb logo, and "MatWeb" are Copyright 1996-2024 by MatWeb, LLC. MatWeb is intended for personal, non-commercial use. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.