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EN 1.4005 Stainless Steel vs. Grade 702C Zirconium

EN 1.4005 stainless steel belongs to the iron alloys classification, while grade 702C zirconium belongs to the otherwise unclassified metals. 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 EN 1.4005 stainless steel and the bottom bar is grade 702C zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
97
Elongation at Break, % 13 to 21
13
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 76
36
Tensile Strength: Ultimate (UTS), MPa 630 to 750
430
Tensile Strength: Yield (Proof), MPa 370 to 500
310

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Specific Heat Capacity, J/kg-K 480
270
Thermal Conductivity, W/m-K 30
22
Thermal Expansion, µm/m-K 10
5.7

Otherwise Unclassified Properties

Density, g/cm3 7.7
6.7
Embodied Water, L/kg 100
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90 to 110
52
Resilience: Unit (Modulus of Resilience), kJ/m3 350 to 650
510
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 23 to 27
18
Strength to Weight: Bending, points 21 to 24
19
Thermal Diffusivity, mm2/s 8.1
12
Thermal Shock Resistance, points 23 to 27
55

Alloy Composition

Carbon (C), % 0.060 to 0.15
0 to 0.1
Chromium (Cr), % 12 to 14
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 82.4 to 87.8
0 to 0.3
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0 to 0.6
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0.15 to 0.35
0
Zirconium (Zr), % 0
94.8 to 100