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Grade 705C Zirconium vs. EN 1.4020 Stainless Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.4020 stainless steel belongs to the iron alloys. There are 19 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 705C zirconium and the bottom bar is EN 1.4020 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190 to 340
Elastic (Young's, Tensile) Modulus, GPa 98
200
Elongation at Break, % 13
13 to 34
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
77
Tensile Strength: Ultimate (UTS), MPa 540
770 to 1130
Tensile Strength: Yield (Proof), MPa 390
430 to 950

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Specific Heat Capacity, J/kg-K 270
480
Thermal Expansion, µm/m-K 5.7
17

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.6
Embodied Water, L/kg 450
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
140 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 790
460 to 2290
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
28 to 41
Strength to Weight: Bending, points 22
25 to 32
Thermal Shock Resistance, points 69
16 to 23

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.15
Chromium (Cr), % 0
16.5 to 19
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
62.8 to 71.8
Manganese (Mn), % 0
11 to 14
Nickel (Ni), % 0
0.5 to 2.5
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.030
0.2 to 0.45
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zirconium (Zr), % 91.9 to 98
0