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EN 1.4305 Stainless Steel vs. Grade 702C Zirconium

EN 1.4305 stainless steel belongs to the iron alloys classification, while grade 702C zirconium belongs to the otherwise unclassified metals. There are 21 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 EN 1.4305 stainless steel and the bottom bar is grade 702C zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 270
180
Elastic (Young's, Tensile) Modulus, GPa 200
97
Elongation at Break, % 14 to 40
13
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
36
Tensile Strength: Ultimate (UTS), MPa 610 to 900
430
Tensile Strength: Yield (Proof), MPa 220 to 570
310

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Specific Heat Capacity, J/kg-K 480
270
Thermal Conductivity, W/m-K 15
22
Thermal Expansion, µm/m-K 16
5.7

Otherwise Unclassified Properties

Density, g/cm3 7.8
6.7
Embodied Water, L/kg 140
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
52
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 830
510
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 22 to 32
18
Strength to Weight: Bending, points 20 to 27
19
Thermal Diffusivity, mm2/s 4.0
12
Thermal Shock Resistance, points 14 to 20
55

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.1
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0 to 1.0
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 66.4 to 74.9
0 to 0.3
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 8.0 to 10
0
Nitrogen (N), % 0 to 0.1
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.045
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