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Grade 705C Zirconium vs. EN 1.4424 Stainless Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.4424 stainless steel belongs to the iron alloys. There are 21 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 1.4424 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
230
Elastic (Young's, Tensile) Modulus, GPa 98
200
Elongation at Break, % 13
28
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
78
Tensile Strength: Ultimate (UTS), MPa 540
800
Tensile Strength: Yield (Proof), MPa 390
480 to 500

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 18
13
Thermal Expansion, µm/m-K 5.7
12

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.7
Embodied Water, L/kg 450
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
190 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 790
580 to 640
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
29
Strength to Weight: Bending, points 22
25
Thermal Diffusivity, mm2/s 9.9
3.5
Thermal Shock Resistance, points 69
23

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 0
18 to 19
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
68.6 to 72.4
Manganese (Mn), % 0
1.2 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0
4.5 to 5.2
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.030
0.050 to 0.1
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0
1.4 to 2.0
Sulfur (S), % 0
0 to 0.015
Zirconium (Zr), % 91.9 to 98
0