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Grade 705C Zirconium vs. EN 1.4905 Stainless Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.4905 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is grade 705C zirconium and the bottom bar is EN 1.4905 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 13
19
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
76
Tensile Strength: Ultimate (UTS), MPa 540
740
Tensile Strength: Yield (Proof), MPa 390
510

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
26
Thermal Expansion, µm/m-K 5.7
11

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.9
Embodied Water, L/kg 450
90

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
130
Resilience: Unit (Modulus of Resilience), kJ/m3 790
680
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
26
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 9.9
7.0
Thermal Shock Resistance, points 69
25

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Boron (B), % 0
0.00050 to 0.0050
Carbon (C), % 0 to 0.1
0.090 to 0.13
Chromium (Cr), % 0
8.5 to 9.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
86.2 to 88.8
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0.1 to 0.4
Niobium (Nb), % 2.0 to 3.0
0.060 to 0.1
Nitrogen (N), % 0 to 0.030
0.050 to 0.090
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.020
Silicon (Si), % 0
0.1 to 0.5
Sulfur (S), % 0
0 to 0.010
Tungsten (W), % 0
0.9 to 1.1
Vanadium (V), % 0
0.18 to 0.25
Zirconium (Zr), % 91.9 to 98
0