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Grade 705C Zirconium vs. S24000 Stainless Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while S24000 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is grade 705C zirconium and the bottom bar is S24000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
210
Elastic (Young's, Tensile) Modulus, GPa 98
200
Elongation at Break, % 13
39
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 87
88
Shear Modulus, GPa 36
77
Tensile Strength: Ultimate (UTS), MPa 540
770
Tensile Strength: Yield (Proof), MPa 390
430

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Specific Heat Capacity, J/kg-K 270
480
Thermal Expansion, µm/m-K 5.7
17

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.6
Embodied Water, L/kg 450
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
260
Resilience: Unit (Modulus of Resilience), kJ/m3 790
470
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
28
Strength to Weight: Bending, points 22
24
Thermal Shock Resistance, points 69
16

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 0
17 to 19
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
61.5 to 69
Manganese (Mn), % 0
11.5 to 14.5
Nickel (Ni), % 0
2.3 to 3.7
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.030
0.2 to 0.4
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.060
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Zirconium (Zr), % 91.9 to 98
0