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UNS R60802 Zirconium-Tin Alloy

R60802 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 R60802 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 106 psi

Elongation at Break

22 %

Poisson's Ratio


Shear Modulus

36 GPa 5.3 x 106 psi

Tensile Strength: Ultimate (UTS)

430 MPa 63 x 103 psi

Tensile Strength: Yield (Proof)

270 MPa 40 x 103 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


6.5 g/cm3 410 lb/ft3

Embodied Water

290 L/kg 34 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

85 MJ/m3

Resilience: Unit (Modulus of Resilience)

380 kJ/m3

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 mm2/s

Thermal Shock Resistance

53 points

Alloy Composition

Zirconium (Zr)Zr 97.8 to 98.7
Tin (Sn)Sn 1.2 to 1.7
Iron (Fe)Fe 0.070 to 0.2
Chromium (Cr)Cr 0.050 to 0.15
Nickel (Ni)Ni 0.030 to 0.080
Residualsres. 0 to 0.11

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)