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ASTM B817 Type II vs. Grade 705C Zirconium

ASTM B817 type II belongs to the titanium alloys classification, while grade 705C zirconium belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is ASTM B817 type II and the bottom bar is grade 705C zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
98
Elongation at Break, % 3.0 to 13
13
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 40
36
Tensile Strength: Ultimate (UTS), MPa 900 to 960
540
Tensile Strength: Yield (Proof), MPa 780 to 900
390

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Specific Heat Capacity, J/kg-K 550
270
Thermal Expansion, µm/m-K 9.9
5.7

Otherwise Unclassified Properties

Density, g/cm3 4.6
6.7
Embodied Water, L/kg 220
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 120
66
Resilience: Unit (Modulus of Resilience), kJ/m3 2890 to 3890
790
Stiffness to Weight: Axial, points 13
8.1
Stiffness to Weight: Bending, points 34
23
Strength to Weight: Axial, points 55 to 58
22
Strength to Weight: Bending, points 45 to 47
22
Thermal Shock Resistance, points 62 to 66
69

Alloy Composition


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Aluminum (Al), % 5.0 to 6.0
0
Carbon (C), % 0 to 0.1
0 to 0.1
Chlorine (Cl), % 0 to 0.2
0
Copper (Cu), % 0.35 to 1.0
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0 to 0.015
0 to 0.0050
Iron (Fe), % 0.35 to 1.0
0 to 0.3
Niobium (Nb), % 0
2.0 to 3.0
Nitrogen (N), % 0 to 0.040
0 to 0.030
Oxygen (O), % 0 to 0.3
0 to 0.3
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.1
0
Sodium (Na), % 0 to 0.2
0
Tin (Sn), % 1.5 to 2.5
0
Titanium (Ti), % 82.1 to 87.8
0
Vanadium (V), % 5.0 to 6.0
0
Zirconium (Zr), % 0
91.9 to 98
Residuals, % 0 to 0.4
0