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Grade 705C Zirconium vs. S45503 Stainless Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while S45503 stainless steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is grade 705C zirconium and the bottom bar is S45503 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
410 to 500
Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 13
4.6 to 6.8
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
75
Tensile Strength: Ultimate (UTS), MPa 540
1610 to 1850
Tensile Strength: Yield (Proof), MPa 390
1430 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Specific Heat Capacity, J/kg-K 270
470
Thermal Expansion, µm/m-K 5.7
11

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.9
Embodied Water, L/kg 450
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
82 to 110
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
57 to 65
Strength to Weight: Bending, points 22
39 to 43
Thermal Shock Resistance, points 69
56 to 64

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.010
Chromium (Cr), % 0
11 to 12.5
Copper (Cu), % 0
1.5 to 2.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
72.4 to 78.9
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
7.5 to 9.5
Niobium (Nb), % 2.0 to 3.0
0.1 to 0.5
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.010
Silicon (Si), % 0
0 to 0.2
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.4
Zirconium (Zr), % 91.9 to 98
0