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Grade 705C Zirconium vs. EN 1.7710 Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.7710 steel belongs to the iron alloys. There are 21 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 grade 705C zirconium and the bottom bar is EN 1.7710 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
280 to 320
Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 13
6.8 to 11
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
73
Tensile Strength: Ultimate (UTS), MPa 540
930 to 1070
Tensile Strength: Yield (Proof), MPa 390
800 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
41
Thermal Expansion, µm/m-K 5.7
13

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
73 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 790
1680 to 2970
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
33 to 38
Strength to Weight: Bending, points 22
27 to 30
Thermal Diffusivity, mm2/s 9.9
11
Thermal Shock Resistance, points 69
27 to 31

Alloy Composition

Carbon (C), % 0 to 0.1
0.12 to 0.18
Chromium (Cr), % 0
1.3 to 1.8
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
95.1 to 97
Manganese (Mn), % 0
0.6 to 1.0
Molybdenum (Mo), % 0
0.8 to 1.0
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.025
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.15 to 0.25
Zirconium (Zr), % 91.9 to 98
0