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Grade 705C Zirconium vs. EN 1.4057 Stainless Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while EN 1.4057 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is grade 705C zirconium and the bottom bar is EN 1.4057 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
200
Elongation at Break, % 13
11 to 17
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
77
Tensile Strength: Ultimate (UTS), MPa 540
840 to 980
Tensile Strength: Yield (Proof), MPa 390
530 to 790

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 18
25
Thermal Expansion, µm/m-K 5.7
10

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.7
Embodied Water, L/kg 450
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
96 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 790
700 to 1610
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
30 to 35
Strength to Weight: Bending, points 22
26 to 28
Thermal Diffusivity, mm2/s 9.9
6.7
Thermal Shock Resistance, points 69
30 to 35

Alloy Composition

Carbon (C), % 0 to 0.1
0.12 to 0.22
Chromium (Cr), % 0
15 to 17
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
77.7 to 83.4
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
1.5 to 2.5
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Zirconium (Zr), % 91.9 to 98
0