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Grade 705C Zirconium vs. SAE-AISI P20 Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while SAE-AISI P20 steel belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is grade 705C zirconium and the bottom bar is SAE-AISI P20 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
190
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
73
Tensile Strength: Ultimate (UTS), MPa 540
540 to 1050

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
45
Thermal Expansion, µm/m-K 5.7
12

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
52

Common Calculations

Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
19 to 37
Strength to Weight: Bending, points 22
19 to 29
Thermal Diffusivity, mm2/s 9.9
12
Thermal Shock Resistance, points 69
18 to 35

Alloy Composition

Carbon (C), % 0 to 0.1
0.28 to 0.4
Chromium (Cr), % 0
0.4 to 2.0
Copper (Cu), % 0
0 to 0.25
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
95.2 to 98.5
Manganese (Mn), % 0
0.35 to 0.71
Molybdenum (Mo), % 0
0.3 to 0.55
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.030
Silicon (Si), % 0
0.2 to 0.8
Sulfur (S), % 0
0 to 0.030
Zirconium (Zr), % 91.9 to 98
0