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Grade 704C Zirconium vs. S35125 Stainless Steel

Grade 704C zirconium belongs to the otherwise unclassified metals classification, while S35125 stainless steel belongs to the iron alloys. 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 grade 704C zirconium and the bottom bar is S35125 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
200
Elongation at Break, % 11
39
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
78
Tensile Strength: Ultimate (UTS), MPa 470
540
Tensile Strength: Yield (Proof), MPa 310
230

Thermal Properties

Latent Heat of Fusion, J/g 240
300
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 21
12
Thermal Expansion, µm/m-K 5.9
16

Otherwise Unclassified Properties

Density, g/cm3 6.7
8.1
Embodied Water, L/kg 460
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
170
Resilience: Unit (Modulus of Resilience), kJ/m3 490
140
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 20
19
Strength to Weight: Bending, points 20
18
Thermal Diffusivity, mm2/s 12
3.1
Thermal Shock Resistance, points 58
12

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.1
Chromium (Cr), % 0
20 to 23
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
36.2 to 45.8
Manganese (Mn), % 0
1.0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
31 to 35
Niobium (Nb), % 0
0.25 to 0.6
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.045
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 1.0 to 2.0
0
Zirconium (Zr), % 92.9 to 99
0