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Grade 702C Zirconium vs. Automotive Malleable Cast Iron

Grade 702C zirconium belongs to the otherwise unclassified metals classification, while automotive malleable cast iron belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 702C zirconium and the bottom bar is automotive malleable cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
130 to 290
Elastic (Young's, Tensile) Modulus, GPa 97
180
Elongation at Break, % 13
1.0 to 10
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
70
Tensile Strength: Ultimate (UTS), MPa 430
350 to 720
Tensile Strength: Yield (Proof), MPa 310
220 to 590

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 22
41
Thermal Expansion, µm/m-K 5.7
14

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.6
Embodied Water, L/kg 450
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
6.8 to 30
Resilience: Unit (Modulus of Resilience), kJ/m3 510
130 to 950
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 18
13 to 26
Strength to Weight: Bending, points 19
14 to 24
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 55
9.9 to 21

Alloy Composition

Carbon (C), % 0 to 0.1
2.2 to 2.9
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
93.6 to 96.7
Manganese (Mn), % 0
0.15 to 1.3
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0 to 0.010
0.020 to 0.15
Silicon (Si), % 0
0.9 to 1.9
Sulfur (S), % 0
0.020 to 0.2
Zirconium (Zr), % 94.8 to 100
0