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Grade 705C Zirconium vs. EN 1.7711 Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.7711 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 1.7711 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
210 to 280
Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 13
16 to 22
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
73
Tensile Strength: Ultimate (UTS), MPa 540
690 to 930
Tensile Strength: Yield (Proof), MPa 390
400 to 800

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
33
Thermal Expansion, µm/m-K 5.7
11

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
130 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 790
430 to 1690
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
24 to 33
Strength to Weight: Bending, points 22
22 to 27
Thermal Diffusivity, mm2/s 9.9
8.9
Thermal Shock Resistance, points 69
24 to 32

Alloy Composition

Aluminum (Al), % 0
0 to 0.015
Carbon (C), % 0 to 0.1
0.36 to 0.44
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 to 97.5
Manganese (Mn), % 0
0.45 to 0.85
Molybdenum (Mo), % 0
0.5 to 0.65
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 0.025
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.25 to 0.35
Zirconium (Zr), % 91.9 to 98
0