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Grade 702C Zirconium vs. SAE-AISI 81B45 Steel

Grade 702C zirconium belongs to the otherwise unclassified metals classification, while SAE-AISI 81B45 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 81B45 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
160 to 200
Elastic (Young's, Tensile) Modulus, GPa 97
190
Elongation at Break, % 13
12 to 24
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
73
Tensile Strength: Ultimate (UTS), MPa 430
540 to 670
Tensile Strength: Yield (Proof), MPa 310
350 to 560

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 22
40
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
77 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 510
320 to 840
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 18
19 to 24
Strength to Weight: Bending, points 19
19 to 22
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 55
17 to 21

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0 to 0.1
0.43 to 0.48
Chromium (Cr), % 0
0.35 to 0.55
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
97 to 98
Manganese (Mn), % 0
0.75 to 1.0
Molybdenum (Mo), % 0
0.080 to 0.15
Nickel (Ni), % 0
0.2 to 0.4
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