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Grade 702C Zirconium vs. S30815 Stainless Steel

Grade 702C zirconium belongs to the otherwise unclassified metals classification, while S30815 stainless steel belongs to the iron alloys. There are 22 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 702C zirconium and the bottom bar is S30815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190
Elastic (Young's, Tensile) Modulus, GPa 97
200
Elongation at Break, % 13
45
Poisson's Ratio 0.34
0.28
Rockwell B Hardness 84
82
Shear Modulus, GPa 36
77
Tensile Strength: Ultimate (UTS), MPa 430
680
Tensile Strength: Yield (Proof), MPa 310
350

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Specific Heat Capacity, J/kg-K 270
490
Thermal Conductivity, W/m-K 22
15
Thermal Expansion, µm/m-K 5.7
17

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.7
Embodied Water, L/kg 450
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
260
Resilience: Unit (Modulus of Resilience), kJ/m3 510
310
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
25
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 55
15

Alloy Composition

Carbon (C), % 0 to 0.1
0.050 to 0.1
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0
20 to 22
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
62.8 to 68.4
Manganese (Mn), % 0
0 to 0.8
Nickel (Ni), % 0
10 to 12
Nitrogen (N), % 0 to 0.030
0.14 to 0.2
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0
1.4 to 2.0
Sulfur (S), % 0
0 to 0.030
Zirconium (Zr), % 94.8 to 100
0