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EN 1.4958 Stainless Steel vs. Commercially Pure Zirconium

EN 1.4958 stainless steel belongs to the iron alloys classification, while commercially pure zirconium belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.4958 stainless steel and the bottom bar is commercially pure zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
98
Elongation at Break, % 40
18
Fatigue Strength, MPa 170
60
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
36
Tensile Strength: Ultimate (UTS), MPa 630
430
Tensile Strength: Yield (Proof), MPa 190
240

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Specific Heat Capacity, J/kg-K 480
270
Thermal Conductivity, W/m-K 12
22
Thermal Expansion, µm/m-K 15
5.5

Otherwise Unclassified Properties

Density, g/cm3 8.0
6.7
Embodied Water, L/kg 200
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
65
Resilience: Unit (Modulus of Resilience), kJ/m3 95
290
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 22
18
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 3.2
12
Thermal Shock Resistance, points 15
56

Alloy Composition

Aluminum (Al), % 0.2 to 0.5
0
Carbon (C), % 0.030 to 0.080
0 to 0.050
Chromium (Cr), % 19 to 22
0 to 0.2
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 41.1 to 50.6
0 to 0.2
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 30 to 32.5
0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.030
0 to 0.025
Oxygen (O), % 0
0 to 0.16
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.7
0
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0.2 to 0.5
0
Zirconium (Zr), % 0
94.7 to 100