# UNS R60804 Zirconium-Tin Alloy

R60804 alloy is a zirconium alloy. Cited properties are appropriate for the annealed condition. It has a moderately high ductility among the zirconium alloys in the database. The graph bars on the material properties cards below compare R60804 alloy to: zirconium alloys (top), all alloys in the same category (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

98 *GPa* 14 *x 10 ^{6} psi*

Elongation at Break

22 *%*

Poisson's Ratio

0.34

Shear Modulus

36 *GPa* 5.3 *x 10 ^{6} psi*

Tensile Strength: Ultimate (UTS)

430 *MPa* 63 *x 10 ^{3} psi*

Tensile Strength: Yield (Proof)

270 *MPa* 40 *x 10 ^{3} psi*

## Thermal Properties

Latent Heat of Fusion

250 *J/g*

Specific Heat Capacity

270 *J/kg-K* 0.064 *BTU/lb-°F*

Thermal Conductivity

22 *W/m-K* 12 *BTU/h-ft-°F*

Thermal Expansion

6.0 *µm/m-K*

## Otherwise Unclassified Properties

Density

6.5 *g/cm ^{3}* 410

*lb/ft*

^{3}Embodied Water

290 *L/kg* 34 *gal/lb*

## Common Calculations

Resilience: Ultimate (Unit Rupture Work)

85 *MJ/m ^{3}*

Resilience: Unit (Modulus of Resilience)

380 *kJ/m ^{3}*

Stiffness to Weight: Axial

8.3 *points*

Stiffness to Weight: Bending

23 *points*

Strength to Weight: Axial

18 *points*

Strength to Weight: Bending

19 *points*

Thermal Diffusivity

12 *mm ^{2}/s*

Thermal Shock Resistance

53 *points*

## Alloy Composition

Zr | 97.8 to 98.6 | |

Sn | 1.2 to 1.7 | |

Fe | 0.18 to 0.24 | |

Cr | 0.070 to 0.13 | |

res. | 0 to 0.12 |

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

## Followup Questions

## Similar Alloys

## Further Reading

ASTM B811: Standard Specification for Wrought Zirconium Alloy Seamless Tubes for Nuclear Reactor Fuel Cladding

ASTM B352: Standard Specification for Zirconium and Zirconium Alloy Sheet, Strip, and Plate for Nuclear Application

ASTM B353: Standard Specification for Wrought Zirconium and Zirconium Alloy Seamless and Welded Tubes for Nuclear Service (Except Nuclear Fuel Cladding)