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Grade 704C Zirconium vs. ACI-ASTM CF8M Steel

Grade 704C zirconium belongs to the otherwise unclassified metals classification, while ACI-ASTM CF8M 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 704C zirconium and the bottom bar is ACI-ASTM CF8M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
170
Elastic (Young's, Tensile) Modulus, GPa 97
200
Elongation at Break, % 11
50
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
78
Tensile Strength: Ultimate (UTS), MPa 470
540
Tensile Strength: Yield (Proof), MPa 310
290

Thermal Properties

Latent Heat of Fusion, J/g 240
300
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 21
16
Thermal Expansion, µm/m-K 5.9
16

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 460
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
230
Resilience: Unit (Modulus of Resilience), kJ/m3 490
210
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 20
19
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 12
4.3
Thermal Shock Resistance, points 58
12

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 0
18 to 21
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
60.3 to 71
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
9.0 to 12
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 1.0 to 2.0
0
Zirconium (Zr), % 92.9 to 99
0