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Grade 705C Zirconium vs. EN 1.8945 Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.8945 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 1.8945 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
170
Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 13
16
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
73
Tensile Strength: Ultimate (UTS), MPa 540
580
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
42
Thermal Expansion, µm/m-K 5.7
13

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
82
Resilience: Unit (Modulus of Resilience), kJ/m3 790
410
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
20
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 9.9
11
Thermal Shock Resistance, points 69
17

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.15
Chromium (Cr), % 0
0.25 to 1.4
Copper (Cu), % 0
0.2 to 0.6
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
95.1 to 99.5
Manganese (Mn), % 0
0 to 1.1
Nickel (Ni), % 0
0 to 0.7
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.030
0 to 0.010
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0.050 to 0.16
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.040
Zirconium (Zr), % 91.9 to 98
0