Cold Worked and Stress Relieved Grade 18 Titanium

Titanium Alloys

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density4.5g/cm³

Elastic Modulus110GPa

Tensile Strength980MPa

Yield Strength810MPa

Brinell HardnessUnknown

Maximum Service Temperature330°C

Weight Calculator

Chemical Composition

0 to 0.080%

0 to 0.030%

92.5 to 95.5%

2.0 to 3.0%

2.5 to 3.5%

0 to 0.015%

0 to 0.15%

0.040 to 0.080%

RES.

Residuals res. | | 0 to 0.4%

RESIDUALS RES.

0 to 0.4%

0 to 0.25%

Mechanical

Elastic (Young's, Tensile) Modulus

110 GPa

Elongation at Break

11 %

Fatigue Strength

480 MPa

Poisson's Ratio

0.32

Reduction in Area

23 %

Shear Modulus

40 GPa

Shear Strength

590 MPa

Tensile Strength: Ultimate (UTS)

980 MPa

Tensile Strength: Yield (Proof)

810 MPa

Physical

Density

4.5 g/cm 3

Thermal

Latent Heat of Fusion

410 J/g

Maximum Temperature: Mechanical

330 °C

Melting Completion (Liquidus)

1640 °C

Melting Onset (Solidus)

1590 °C

Specific Heat Capacity

550 J/kg-K

Thermal Conductivity

8.3 W/m-K

Thermal Diffusivity

3.4 mm 2 /s

Thermal Expansion

9.9 µm/m-K

Thermal Shock Resistance

67 points

Electrical

Electrical Conductivity: Equal Volume

1.3 % IACS

Electrical Conductivity: Equal Weight (Specific)

2.7 % IACS

Calculated

Resilience: Ultimate (Unit Rupture Work)

110 MJ/m 3

Resilience: Unit (Modulus of Resilience)

3110 kJ/m 3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

35 points

Strength to Weight: Axial

61 points

Strength to Weight: Bending

49 points

Environmental

Embodied Carbon

41 kg CO 2 /kg material

Embodied Energy

670 MJ/kg

Embodied Energy

670 MJ/kg 290 x 10 3 BTU/lb

Embodied Water

270 L/kg

Embodied Water

270 L/kg 33 gal/lb

Registered Designations & Aliases

Cold Worked and Stress Relieved Grade 18 Titanium

Standards

ASTM B265 ASTM B265: Standard Specification for Titanium and Titanium Alloy Strip, Sheet, and Plate

ASTM B348 ASTM B348: Standard Specification for Titanium and Titanium Alloy Bars and Billets

ASTM B381 ASTM B381: Standard Specification for Titanium and Titanium Alloy Forgings

ASTM B861 ASTM B861: Standard Specification for Titanium and Titanium Alloy Seamless Pipe

ASTM B861 ASTM B861: Standard Specification for Titanium and Titanium Alloy Seamless Pipe ASTM B381: Standard Specification for Titanium and Titanium Alloy Forgings ASTM B265: Standard Specification for Titanium and Titanium Alloy Strip, Sheet, and Plate ASTM B348: Standard Specification for Titanium and Titanium Alloy Bars and Billets Titanium and Titanium Alloys: Fundamentals and Applications, Christoph Leyens and Manfred Peters (editors), 2003 Titanium, 2nd ed., G. Lutjering and J. C. Williams, 2007 Aerospace Materials, Brian Cantor et al. (editors), 2001 Environmental Degradation of Advanced and Traditional Engineering Materials, Lloyd H. Hihara et al., 2014.