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Grade 704C Zirconium vs. S31266 Stainless Steel

Grade 704C zirconium belongs to the otherwise unclassified metals classification, while S31266 stainless steel belongs to the iron alloys. 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 grade 704C zirconium and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
210
Elongation at Break, % 11
40
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
81
Tensile Strength: Ultimate (UTS), MPa 470
860
Tensile Strength: Yield (Proof), MPa 310
470

Thermal Properties

Latent Heat of Fusion, J/g 240
310
Specific Heat Capacity, J/kg-K 270
460
Thermal Conductivity, W/m-K 21
12
Thermal Expansion, µm/m-K 5.9
16

Otherwise Unclassified Properties

Density, g/cm3 6.7
8.2
Embodied Water, L/kg 460
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
290
Resilience: Unit (Modulus of Resilience), kJ/m3 490
540
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 20
29
Strength to Weight: Bending, points 20
24
Thermal Diffusivity, mm2/s 12
3.1
Thermal Shock Resistance, points 58
18

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 0
1.0 to 2.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
34.1 to 46
Manganese (Mn), % 0
2.0 to 4.0
Molybdenum (Mo), % 0
5.2 to 6.2
Nickel (Ni), % 0
21 to 24
Nitrogen (N), % 0 to 0.030
0.35 to 0.6
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 1.0 to 2.0
0
Tungsten (W), % 0
1.5 to 2.5
Zirconium (Zr), % 92.9 to 99
0