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S31277 Stainless Steel vs. Grade 705C Zirconium

S31277 stainless steel belongs to the iron alloys classification, while grade 705C zirconium belongs to the otherwise unclassified metals. There are 18 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 S31277 stainless steel and the bottom bar is grade 705C zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
98
Elongation at Break, % 45
13
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 80
36
Tensile Strength: Ultimate (UTS), MPa 860
540
Tensile Strength: Yield (Proof), MPa 410
390

Thermal Properties

Latent Heat of Fusion, J/g 310
250
Specific Heat Capacity, J/kg-K 460
270
Thermal Expansion, µm/m-K 16
5.7

Otherwise Unclassified Properties

Density, g/cm3 8.1
6.7
Embodied Water, L/kg 220
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 320
66
Resilience: Unit (Modulus of Resilience), kJ/m3 410
790
Stiffness to Weight: Axial, points 14
8.1
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 29
22
Strength to Weight: Bending, points 25
22
Thermal Shock Resistance, points 19
69

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.1
Chromium (Cr), % 20.5 to 23
0
Copper (Cu), % 0.5 to 1.5
0
Hafnium (Hf), % 0
0 to 4.5
Hydrogen (H), % 0
0 to 0.0050
Iron (Fe), % 35.5 to 46.2
0 to 0.3
Manganese (Mn), % 0 to 3.0
0
Molybdenum (Mo), % 6.5 to 8.0
0
Nickel (Ni), % 26 to 28
0
Niobium (Nb), % 0
2.0 to 3.0
Nitrogen (N), % 0.3 to 0.4
0 to 0.030
Oxygen (O), % 0
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.010
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.010
0
Zirconium (Zr), % 0
91.9 to 98