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EN 1.4905 Stainless Steel vs. Grade 704C Zirconium

EN 1.4905 stainless steel belongs to the iron alloys classification, while grade 704C zirconium belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is EN 1.4905 stainless steel and the bottom bar is grade 704C zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
97
Elongation at Break, % 19
11
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 76
36
Tensile Strength: Ultimate (UTS), MPa 740
470
Tensile Strength: Yield (Proof), MPa 510
310

Thermal Properties

Latent Heat of Fusion, J/g 270
240
Specific Heat Capacity, J/kg-K 470
270
Thermal Conductivity, W/m-K 26
21
Thermal Expansion, µm/m-K 11
5.9

Otherwise Unclassified Properties

Density, g/cm3 7.9
6.7
Embodied Water, L/kg 90
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
48
Resilience: Unit (Modulus of Resilience), kJ/m3 680
490
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 26
20
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 7.0
12
Thermal Shock Resistance, points 25
58

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Boron (B), % 0.00050 to 0.0050
0
Carbon (C), % 0.090 to 0.13
0 to 0.1
Chromium (Cr), % 8.5 to 9.5
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 86.2 to 88.8
0 to 0.3
Manganese (Mn), % 0.3 to 0.6
0
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0.1 to 0.4
0
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.050 to 0.090
0 to 0.030
Oxygen (O), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.020
0 to 0.010
Silicon (Si), % 0.1 to 0.5
0
Sulfur (S), % 0 to 0.010
0
Tin (Sn), % 0
1.0 to 2.0
Tungsten (W), % 0.9 to 1.1
0
Vanadium (V), % 0.18 to 0.25
0
Zirconium (Zr), % 0
92.9 to 99