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Grade 705C Zirconium vs. SAE-AISI 1090 Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while SAE-AISI 1090 steel belongs to the iron alloys. There are 21 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 SAE-AISI 1090 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
220 to 280
Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 13
11
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
72
Tensile Strength: Ultimate (UTS), MPa 540
790 to 950
Tensile Strength: Yield (Proof), MPa 390
520 to 610

Thermal Properties

Latent Heat of Fusion, J/g 250
240
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
50
Thermal Expansion, µm/m-K 5.7
12

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
82 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 790
730 to 1000
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
28 to 34
Strength to Weight: Bending, points 22
24 to 27
Thermal Diffusivity, mm2/s 9.9
13
Thermal Shock Resistance, points 69
25 to 31

Alloy Composition

Carbon (C), % 0 to 0.1
0.85 to 1.0
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
98 to 98.6
Manganese (Mn), % 0
0.6 to 0.9
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 0.040
Sulfur (S), % 0
0 to 0.050
Zirconium (Zr), % 91.9 to 98
0