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EN 1.4104 Stainless Steel vs. Grade 704C Zirconium

EN 1.4104 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 (14, in this case) are not shown.

For each property being compared, the top bar is EN 1.4104 stainless steel and the bottom bar is grade 704C zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
97
Elongation at Break, % 11 to 23
11
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
36
Tensile Strength: Ultimate (UTS), MPa 630 to 750
470
Tensile Strength: Yield (Proof), MPa 350 to 560
310

Thermal Properties

Latent Heat of Fusion, J/g 280
240
Specific Heat Capacity, J/kg-K 480
270
Thermal Conductivity, W/m-K 25
21
Thermal Expansion, µm/m-K 10
5.9

Otherwise Unclassified Properties

Density, g/cm3 7.7
6.7
Embodied Water, L/kg 120
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 120
48
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 800
490
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 23 to 27
20
Strength to Weight: Bending, points 21 to 24
20
Thermal Diffusivity, mm2/s 6.7
12
Thermal Shock Resistance, points 22 to 27
58

Alloy Composition

Carbon (C), % 0.1 to 0.17
0 to 0.1
Chromium (Cr), % 15.5 to 17.5
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 78.8 to 84.1
0 to 0.3
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0.2 to 0.6
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0.15 to 0.35
0
Tin (Sn), % 0
1.0 to 2.0
Zirconium (Zr), % 0
92.9 to 99