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Grade 705C Zirconium vs. EN 1.3960 Stainless Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.3960 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 705C zirconium and the bottom bar is EN 1.3960 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
200
Elongation at Break, % 13
34
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
78
Tensile Strength: Ultimate (UTS), MPa 540
590
Tensile Strength: Yield (Proof), MPa 390
270

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
15
Thermal Expansion, µm/m-K 5.7
12

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.9
Embodied Water, L/kg 450
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
170
Resilience: Unit (Modulus of Resilience), kJ/m3 790
190
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
21
Strength to Weight: Bending, points 22
20
Thermal Diffusivity, mm2/s 9.9
3.9
Thermal Shock Resistance, points 69
17

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 0
16.5 to 18.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
60.2 to 67.9
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0
13 to 15
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.030
0.15 to 0.25
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Zirconium (Zr), % 91.9 to 98
0