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Grade 704C Zirconium vs. S40930 Stainless Steel

Grade 704C zirconium belongs to the otherwise unclassified metals classification, while S40930 stainless steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade 704C zirconium and the bottom bar is S40930 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
160
Elastic (Young's, Tensile) Modulus, GPa 97
190
Elongation at Break, % 11
23
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 85
76
Shear Modulus, GPa 36
75
Tensile Strength: Ultimate (UTS), MPa 470
430
Tensile Strength: Yield (Proof), MPa 310
190

Thermal Properties

Latent Heat of Fusion, J/g 240
270
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 21
25
Thermal Expansion, µm/m-K 5.9
10

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 460
94

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
80
Resilience: Unit (Modulus of Resilience), kJ/m3 490
94
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 20
16
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 12
6.7
Thermal Shock Resistance, points 58
16

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 0
10.5 to 11.7
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
84.7 to 89.4
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.080 to 0.75
Nitrogen (N), % 0 to 0.030
0 to 0.030
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 1.0 to 2.0
0
Titanium (Ti), % 0
0.050 to 0.2
Zirconium (Zr), % 92.9 to 99
0