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Grade 705C Zirconium vs. S42300 Stainless Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while S42300 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 705C zirconium and the bottom bar is S42300 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
330
Elastic (Young's, Tensile) Modulus, GPa 98
200
Elongation at Break, % 13
9.1
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
77
Tensile Strength: Ultimate (UTS), MPa 540
1100
Tensile Strength: Yield (Proof), MPa 390
850

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
25
Thermal Expansion, µm/m-K 5.7
10

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
93
Resilience: Unit (Modulus of Resilience), kJ/m3 790
1840
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
39
Strength to Weight: Bending, points 22
30
Thermal Diffusivity, mm2/s 9.9
6.8
Thermal Shock Resistance, points 69
40

Alloy Composition

Carbon (C), % 0 to 0.1
0.27 to 0.32
Chromium (Cr), % 0
11 to 12
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
82 to 85.1
Manganese (Mn), % 0
1.0 to 1.4
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.025
Vanadium (V), % 0
0.2 to 0.3
Zirconium (Zr), % 91.9 to 98
0