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Grade 702C Zirconium vs. SAE-AISI 5155 Steel

Grade 702C zirconium belongs to the otherwise unclassified metals classification, while SAE-AISI 5155 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is grade 702C zirconium and the bottom bar is SAE-AISI 5155 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
190
Elastic (Young's, Tensile) Modulus, GPa 97
190
Elongation at Break, % 13
21
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
73
Tensile Strength: Ultimate (UTS), MPa 430
620
Tensile Strength: Yield (Proof), MPa 310
380

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 22
49
Thermal Expansion, µm/m-K 5.7
12

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
110
Resilience: Unit (Modulus of Resilience), kJ/m3 510
380
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 18
22
Strength to Weight: Bending, points 19
21
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 55
20

Alloy Composition

Carbon (C), % 0 to 0.1
0.51 to 0.59
Chromium (Cr), % 0
0.7 to 0.9
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
97.2 to 97.9
Manganese (Mn), % 0
0.7 to 0.9
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Zirconium (Zr), % 94.8 to 100
0