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Grade 705C Zirconium vs. EN 1.7139 Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.7139 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is grade 705C zirconium and the bottom bar is EN 1.7139 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
150 to 180
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
480 to 1390

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
44
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

Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
17 to 49
Strength to Weight: Bending, points 22
17 to 35
Thermal Diffusivity, mm2/s 9.9
12
Thermal Shock Resistance, points 69
14 to 41

Alloy Composition

Carbon (C), % 0 to 0.1
0.14 to 0.19
Chromium (Cr), % 0
0.8 to 1.1
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
96.8 to 98
Manganese (Mn), % 0
1.0 to 1.3
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
0.020 to 0.040
Zirconium (Zr), % 91.9 to 98
0