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ASTM A232 Spring Steel vs. Reactor Grade Zirconium

ASTM A232 spring steel belongs to the iron alloys classification, while reactor grade zirconium belongs to the otherwise unclassified metals. There are 19 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 ASTM A232 spring steel and the bottom bar is reactor grade zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
98
Elongation at Break, % 14
21
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
37
Tensile Strength: Ultimate (UTS), MPa 1790
330
Tensile Strength: Yield (Proof), MPa 1610
160

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 470
270
Thermal Conductivity, W/m-K 52
22
Thermal Expansion, µm/m-K 13
5.9

Otherwise Unclassified Properties

Density, g/cm3 7.8
6.5
Embodied Water, L/kg 51
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
56
Stiffness to Weight: Axial, points 13
8.4
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 64
14
Strength to Weight: Bending, points 42
16
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 53
41

Alloy Composition

Carbon (C), % 0.48 to 0.53
0
Chromium (Cr), % 0.8 to 1.1
0
Iron (Fe), % 96.8 to 97.7
0
Manganese (Mn), % 0.7 to 0.9
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.035
0
Vanadium (V), % 0.15 to 0.3
0
Zirconium (Zr), % 0
99.7 to 100
Residuals, % 0
0 to 0.27