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Grade 705C Zirconium vs. EN 1.7767 Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.7767 steel belongs to the iron alloys. There are 21 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 1.7767 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
200 to 210
Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 13
20
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
74
Tensile Strength: Ultimate (UTS), MPa 540
670 to 690
Tensile Strength: Yield (Proof), MPa 390
460 to 500

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
40
Thermal Expansion, µm/m-K 5.7
13

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.9
Embodied Water, L/kg 450
64

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
120 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 790
570 to 650
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
24
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 9.9
11
Thermal Shock Resistance, points 69
19 to 20

Alloy Composition

Carbon (C), % 0 to 0.1
0.1 to 0.15
Chromium (Cr), % 0
2.8 to 3.3
Copper (Cu), % 0
0 to 0.25
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
93.8 to 95.8
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.25
Niobium (Nb), % 2.0 to 3.0
0 to 0.070
Nitrogen (N), % 0 to 0.030
0 to 0.012
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.015
Silicon (Si), % 0
0 to 0.15
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0.2 to 0.3
Zirconium (Zr), % 91.9 to 98
0