# Solution-Treated and Aged (Moderate Strength) Grade 19 Titanium

Moderate strength grade 19 titanium is grade 19 titanium in the annealed and aged condition. The graph bars on the material properties cards below compare moderate strength grade 19 titanium to: wrought titaniums (top), all titanium alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

## Mechanical Properties

Elastic (Young's, Tensile) Modulus

120 *GPa* 18 *x 10 ^{6} psi*

Elongation at Break

11 *%*

Fatigue Strength

570 *MPa* 83 *x 10 ^{3} psi*

Poisson's Ratio

0.32

Reduction in Area

22 *%*

Shear Modulus

47 *GPa* 6.8 *x 10 ^{6} psi*

Shear Strength

630 *MPa* 92 *x 10 ^{3} psi*

Tensile Strength: Ultimate (UTS)

1060 *MPa* 150 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

970 *MPa* 140 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

400 *J/g*

Maximum Temperature: Mechanical

370 *°C* 700 *°F*

Melting Completion (Liquidus)

1660 *°C* 3020 *°F*

Melting Onset (Solidus)

1600 *°C* 2920 *°F*

Specific Heat Capacity

520 *J/kg-K* 0.12 *BTU/lb-°F*

Thermal Conductivity

6.2 *W/m-K* 3.6 *BTU/h-ft-°F*

Thermal Expansion

9.1 *µm/m-K*

## Otherwise Unclassified Properties

Base Metal Price

45 *% relative*

Density

5.0 *g/cm ^{3}* 310

*lb/ft*

^{3}Embodied Carbon

47 *kg CO _{2}/kg material*

Embodied Energy

760 *MJ/kg* 330 *x 10 ^{3} BTU/lb*

Embodied Water

230 *L/kg* 27 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

120 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

3850 *kJ/m ^{3}*

Stiffness to Weight: Axial

14 *points*

Stiffness to Weight: Bending

33 *points*

Strength to Weight: Axial

59 *points*

Strength to Weight: Bending

46 *points*

Thermal Diffusivity

2.4 *mm ^{2}/s*

Thermal Shock Resistance

68 *points*

## Alloy Composition

Ti | 71.1 to 77 | |

V | 7.5 to 8.5 | |

Cr | 5.5 to 6.5 | |

Mo | 3.5 to 4.5 | |

Zr | 3.5 to 4.5 | |

Al | 3.0 to 4.0 | |

Fe | 0 to 0.3 | |

O | 0 to 0.12 | |

C | 0 to 0.050 | |

N | 0 to 0.030 | |

H | 0 to 0.020 | |

res. | 0 to 0.4 |

All values are % weight. Ranges represent what is permitted under applicable standards.

## Followup Questions

## Further Reading

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

Environmental Degradation of Advanced and Traditional Engineering Materials, Lloyd H. Hihara et al., 2014.

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015