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Grade 705C Zirconium vs. EN 1.8159 Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.8159 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is grade 705C zirconium and the bottom bar is EN 1.8159 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
200 to 360
Elastic (Young's, Tensile) Modulus, GPa 98
190
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
73
Tensile Strength: Ultimate (UTS), MPa 540
660 to 1980

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
46
Thermal Expansion, µm/m-K 5.7
13

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
52

Common Calculations

Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
23 to 70
Strength to Weight: Bending, points 22
21 to 45
Thermal Diffusivity, mm2/s 9.9
13
Thermal Shock Resistance, points 69
19 to 58

Alloy Composition

Carbon (C), % 0 to 0.1
0.47 to 0.55
Chromium (Cr), % 0
0.9 to 1.2
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
96.4 to 97.8
Manganese (Mn), % 0
0.7 to 1.1
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 0.035
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Vanadium (V), % 0
0.1 to 0.25
Zirconium (Zr), % 91.9 to 98
0