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Grade 704C Zirconium vs. S20161 Stainless Steel

Grade 704C zirconium belongs to the otherwise unclassified metals classification, while S20161 stainless steel belongs to the iron alloys. There are 21 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 grade 704C zirconium and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
250
Elastic (Young's, Tensile) Modulus, GPa 97
190
Elongation at Break, % 11
46
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
76
Tensile Strength: Ultimate (UTS), MPa 470
980
Tensile Strength: Yield (Proof), MPa 310
390

Thermal Properties

Latent Heat of Fusion, J/g 240
330
Specific Heat Capacity, J/kg-K 270
490
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 5.9
16

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.5
Embodied Water, L/kg 460
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
360
Resilience: Unit (Modulus of Resilience), kJ/m3 490
390
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 20
36
Strength to Weight: Bending, points 20
29
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 58
22

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.15
Chromium (Cr), % 0
15 to 18
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
65.6 to 73.9
Manganese (Mn), % 0
4.0 to 6.0
Nickel (Ni), % 0
4.0 to 6.0
Nitrogen (N), % 0 to 0.030
0.080 to 0.2
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0
3.0 to 4.0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 1.0 to 2.0
0
Zirconium (Zr), % 92.9 to 99
0