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Grade 704C Zirconium vs. ASTM Grade HC Steel

Grade 704C zirconium belongs to the otherwise unclassified metals classification, while ASTM grade HC steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is grade 704C zirconium and the bottom bar is ASTM grade HC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
200
Elongation at Break, % 11
6.0
Poisson's Ratio 0.34
0.27
Shear Modulus, GPa 36
80
Tensile Strength: Ultimate (UTS), MPa 470
430
Tensile Strength: Yield (Proof), MPa 310
200

Thermal Properties

Latent Heat of Fusion, J/g 240
310
Specific Heat Capacity, J/kg-K 270
490
Thermal Conductivity, W/m-K 21
17
Thermal Expansion, µm/m-K 5.9
11

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.6
Embodied Water, L/kg 460
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
21
Resilience: Unit (Modulus of Resilience), kJ/m3 490
95
Stiffness to Weight: Axial, points 8.1
15
Stiffness to Weight: Bending, points 23
26
Strength to Weight: Axial, points 20
16
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 12
4.5
Thermal Shock Resistance, points 58
14

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.5
Chromium (Cr), % 0
26 to 30
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
61.9 to 74
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 4.0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.040
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