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Grade 704C Zirconium vs. EN 1.4634 Stainless Steel

Grade 704C zirconium belongs to the otherwise unclassified metals classification, while EN 1.4634 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is grade 704C zirconium and the bottom bar is EN 1.4634 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
200
Elongation at Break, % 11
21
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
77
Tensile Strength: Ultimate (UTS), MPa 470
540
Tensile Strength: Yield (Proof), MPa 310
280

Thermal Properties

Latent Heat of Fusion, J/g 240
290
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 21
21
Thermal Expansion, µm/m-K 5.9
10

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.7
Embodied Water, L/kg 460
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
93
Resilience: Unit (Modulus of Resilience), kJ/m3 490
200
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 20
20
Strength to Weight: Bending, points 20
19
Thermal Diffusivity, mm2/s 12
5.8
Thermal Shock Resistance, points 58
19

Alloy Composition

Aluminum (Al), % 0
0.2 to 1.5
Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 0
17.5 to 18.5
Copper (Cu), % 0
0 to 0.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
74.9 to 81.8
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0.3 to 1.0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.050
Silicon (Si), % 0
0.2 to 1.5
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 1.0 to 2.0
0
Zirconium (Zr), % 92.9 to 99
0