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Grade 705C Zirconium vs. S30415 Stainless Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while S30415 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 705C zirconium and the bottom bar is S30415 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190
Elastic (Young's, Tensile) Modulus, GPa 98
200
Elongation at Break, % 13
45
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 87
84
Shear Modulus, GPa 36
77
Tensile Strength: Ultimate (UTS), MPa 540
670
Tensile Strength: Yield (Proof), MPa 390
330

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 18
21
Thermal Expansion, µm/m-K 5.7
17

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.7
Embodied Water, L/kg 450
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
250
Resilience: Unit (Modulus of Resilience), kJ/m3 790
280
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
24
Strength to Weight: Bending, points 22
22
Thermal Diffusivity, mm2/s 9.9
5.6
Thermal Shock Resistance, points 69
15

Alloy Composition

Carbon (C), % 0 to 0.1
0.040 to 0.060
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0
18 to 19
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
67.8 to 71.8
Manganese (Mn), % 0
0 to 0.8
Nickel (Ni), % 0
9.0 to 10
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.030
0.12 to 0.18
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.045
Silicon (Si), % 0
1.0 to 2.0
Sulfur (S), % 0
0 to 0.030
Zirconium (Zr), % 91.9 to 98
0