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Grade 705C Zirconium vs. EN 1.8821 Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.8821 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 1.8821 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
160
Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 13
25
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
73
Tensile Strength: Ultimate (UTS), MPa 540
530
Tensile Strength: Yield (Proof), MPa 390
390

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
49
Thermal Expansion, µm/m-K 5.7
13

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
120
Resilience: Unit (Modulus of Resilience), kJ/m3 790
400
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
19
Strength to Weight: Bending, points 22
19
Thermal Diffusivity, mm2/s 9.9
13
Thermal Shock Resistance, points 69
16

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.030
Carbon (C), % 0 to 0.1
0 to 0.14
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
96.8 to 99.98
Manganese (Mn), % 0
0 to 1.6
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 2.0 to 3.0
0 to 0.050
Nitrogen (N), % 0 to 0.030
0 to 0.015
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.1
Zirconium (Zr), % 91.9 to 98
0