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Grade 705C Zirconium vs. EN 1.7272 Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.7272 steel belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is grade 705C zirconium and the bottom bar is EN 1.7272 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
190
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
73
Tensile Strength: Ultimate (UTS), MPa 540
490 to 1650

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
45
Thermal Expansion, µm/m-K 5.7
13

Otherwise Unclassified Properties

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

Common Calculations

Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
17 to 59
Strength to Weight: Bending, points 22
18 to 40
Thermal Diffusivity, mm2/s 9.9
12
Thermal Shock Resistance, points 69
14 to 48

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0 to 0.1
0.28 to 0.33
Chromium (Cr), % 0
0.4 to 0.55
Copper (Cu), % 0
0 to 0.25
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
97.2 to 98.3
Manganese (Mn), % 0
0.9 to 1.2
Molybdenum (Mo), % 0
0.1 to 0.15
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 0.3
Sulfur (S), % 0
0 to 0.025
Zirconium (Zr), % 91.9 to 98
0