UNS R60704 Zirconium-Tin Alloy
R60704 alloy is a zirconium alloy. Cited properties are appropriate for the annealed condition. The graph bars on the material properties cards below compare R60704 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
97 GPa 14 x 106 psi
Elongation at Break
16 %
Poisson's Ratio
0.34
Shear Modulus
36 GPa 5.3 x 106 psi
Tensile Strength: Ultimate (UTS)
470 MPa 68 x 103 psi
Tensile Strength: Yield (Proof)
270 MPa 39 x 103 psi
Thermal Properties
Latent Heat of Fusion
240 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
6.7 g/cm3 420 lb/ft3
Embodied Water
460 L/kg 55 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
64 MJ/m3
Resilience: Unit (Modulus of Resilience)
370 kJ/m3
Stiffness to Weight: Axial
8.1 points
Stiffness to Weight: Bending
23 points
Strength to Weight: Axial
20 points
Strength to Weight: Bending
20 points
Thermal Diffusivity
12 mm2/s
Thermal Shock Resistance
58 points
Alloy Composition
Zr | 93 to 98.8 | |
Hf | 0 to 4.5 | |
Sn | 1.0 to 2.0 | |
Cr | 0.2 to 0.4 | |
Fe | 0.2 to 0.4 | |
O | 0 to 0.18 | |
C | 0 to 0.050 | |
N | 0 to 0.025 | |
H | 0 to 0.0050 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
ASTM B493: Standard Specification for Zirconium and Zirconium Alloy Forgings
ASTM B523: Standard Specification for Seamless and Welded Zirconium and Zirconium Alloy Tubes
ASTM B550: Standard Specification for Zirconium and Zirconium Alloy Bar and Wire
ASTM B658: Standard Specification for Seamless and Welded Zirconium and Zirconium Alloy Pipe
ASTM B551: Standard Specification for Zirconium and Zirconium Alloy Strip, Sheet, and Plate