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Grade 704C Zirconium vs. SAE-AISI M7 Steel

Grade 704C zirconium belongs to the otherwise unclassified metals classification, while SAE-AISI M7 steel belongs to the iron alloys. There are 16 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 SAE-AISI M7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
200
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 36
77
Tensile Strength: Ultimate (UTS), MPa 470
760 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 240
270
Specific Heat Capacity, J/kg-K 270
450
Thermal Conductivity, W/m-K 21
28
Thermal Expansion, µm/m-K 5.9
12

Otherwise Unclassified Properties

Density, g/cm3 6.7
8.1
Embodied Water, L/kg 460
100

Common Calculations

Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 20
26 to 76
Strength to Weight: Bending, points 20
23 to 47
Thermal Diffusivity, mm2/s 12
7.8
Thermal Shock Resistance, points 58
24 to 69

Alloy Composition

Carbon (C), % 0 to 0.1
1.0 to 1.1
Chromium (Cr), % 0
3.5 to 4.0
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
79.8 to 83.8
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
8.2 to 9.2
Nickel (Ni), % 0
0 to 0.3
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 0.55
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.0 to 2.0
0
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.8 to 2.3
Zirconium (Zr), % 92.9 to 99
0