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Grade 705C Zirconium vs. EN 1.1170 Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.1170 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 1.1170 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
180 to 210
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
73
Tensile Strength: Ultimate (UTS), MPa 540
640 to 730
Tensile Strength: Yield (Proof), MPa 390
330 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
50
Thermal Expansion, µm/m-K 5.7
12

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
91 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 790
290 to 670
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
23 to 26
Strength to Weight: Bending, points 22
21 to 23
Thermal Diffusivity, mm2/s 9.9
13
Thermal Shock Resistance, points 69
20 to 23

Alloy Composition

Carbon (C), % 0 to 0.1
0.25 to 0.32
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
96.7 to 98.5
Manganese (Mn), % 0
1.3 to 1.7
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