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EN 1.6958 Steel vs. Low-oxygen Zirconium

EN 1.6958 steel belongs to the iron alloys classification, while low-oxygen zirconium belongs to the otherwise unclassified metals. There are 20 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 EN 1.6958 steel and the bottom bar is low-oxygen zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
98
Elongation at Break, % 16
23
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
37
Tensile Strength: Ultimate (UTS), MPa 1140
330
Tensile Strength: Yield (Proof), MPa 1070
270

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 470
270
Thermal Conductivity, W/m-K 47
22
Thermal Expansion, µm/m-K 11
5.7

Otherwise Unclassified Properties

Density, g/cm3 7.9
6.7
Embodied Water, L/kg 60
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
70
Resilience: Unit (Modulus of Resilience), kJ/m3 3050
370
Stiffness to Weight: Axial, points 13
8.1
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 40
14
Strength to Weight: Bending, points 31
16
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 39
42

Alloy Composition

Aluminum (Al), % 0.0050 to 0.050
0
Carbon (C), % 0.25 to 0.3
0 to 0.050
Chromium (Cr), % 1.2 to 1.7
0 to 0.2
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 92.6 to 94.5
0 to 0.2
Manganese (Mn), % 0.2 to 0.5
0
Molybdenum (Mo), % 0.35 to 0.55
0
Nickel (Ni), % 3.3 to 3.8
0
Nitrogen (N), % 0
0 to 0.025
Oxygen (O), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.15 to 0.3
0
Sulfur (S), % 0 to 0.015
0
Vanadium (V), % 0 to 0.12
0
Zirconium (Zr), % 0
94.7 to 100