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Grade 704C Zirconium vs. EN 1.4371 Stainless Steel

Grade 704C zirconium belongs to the otherwise unclassified metals classification, while EN 1.4371 stainless steel belongs to the iron alloys. 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 grade 704C zirconium and the bottom bar is EN 1.4371 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
220 to 230
Elastic (Young's, Tensile) Modulus, GPa 97
200
Elongation at Break, % 11
45 to 51
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
77
Tensile Strength: Ultimate (UTS), MPa 470
740 to 750
Tensile Strength: Yield (Proof), MPa 310
320 to 340

Thermal Properties

Latent Heat of Fusion, J/g 240
280
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 5.9
17

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.7
Embodied Water, L/kg 460
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
270 to 310
Resilience: Unit (Modulus of Resilience), kJ/m3 490
250 to 300
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 20
27
Strength to Weight: Bending, points 20
24
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 58
16

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 0
16 to 17.5
Copper (Cu), % 0
0 to 1.0
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
66.7 to 74.4
Manganese (Mn), % 0
6.0 to 8.0
Nickel (Ni), % 0
3.5 to 5.5
Nitrogen (N), % 0 to 0.030
0.15 to 0.25
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 0.015
Tin (Sn), % 1.0 to 2.0
0
Zirconium (Zr), % 92.9 to 99
0