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EN 1.4669 Stainless Steel vs. Grade 704C Zirconium

EN 1.4669 stainless steel belongs to the iron alloys classification, while grade 704C zirconium belongs to the otherwise unclassified metals. 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 EN 1.4669 stainless steel and the bottom bar is grade 704C zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
210
Elastic (Young's, Tensile) Modulus, GPa 200
97
Elongation at Break, % 28
11
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 78
36
Tensile Strength: Ultimate (UTS), MPa 780
470
Tensile Strength: Yield (Proof), MPa 450
310

Thermal Properties

Latent Heat of Fusion, J/g 290
240
Specific Heat Capacity, J/kg-K 480
270
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 13
5.9

Otherwise Unclassified Properties

Density, g/cm3 7.7
6.7
Embodied Water, L/kg 160
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
48
Resilience: Unit (Modulus of Resilience), kJ/m3 510
490
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 28
20
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 4.0
12
Thermal Shock Resistance, points 21
58

Alloy Composition

Carbon (C), % 0 to 0.045
0 to 0.1
Chromium (Cr), % 21.5 to 24
0
Copper (Cu), % 1.6 to 3.0
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 65.2 to 74.8
0 to 0.3
Manganese (Mn), % 1.0 to 3.0
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 1.0 to 3.0
0
Nitrogen (N), % 0.12 to 0.2
0 to 0.030
Oxygen (O), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
1.0 to 2.0
Zirconium (Zr), % 0
92.9 to 99