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Grade 705C Zirconium vs. EN 1.1191 Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.1191 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 1.1191 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 13
16 to 17
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
72
Tensile Strength: Ultimate (UTS), MPa 540
630 to 700
Tensile Strength: Yield (Proof), MPa 390
310 to 440

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
48
Thermal Expansion, µm/m-K 5.7
12

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
83 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 790
260 to 510
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
22 to 25
Strength to Weight: Bending, points 22
21 to 22
Thermal Diffusivity, mm2/s 9.9
13
Thermal Shock Resistance, points 69
20 to 22

Alloy Composition

Carbon (C), % 0 to 0.1
0.42 to 0.5
Chromium (Cr), % 0
0 to 0.4
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
97.3 to 99.08
Manganese (Mn), % 0
0.5 to 0.8
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.4
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
Zirconium (Zr), % 91.9 to 98
0