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S45503 Stainless Steel vs. R05255 Alloy

S45503 stainless steel belongs to the iron alloys classification, while R05255 alloy belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is S45503 stainless steel and the bottom bar is R05255 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 4.6 to 6.8
20
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 75
70
Tensile Strength: Ultimate (UTS), MPa 1610 to 1850
540
Tensile Strength: Yield (Proof), MPa 1430 to 1700
450

Thermal Properties

Latent Heat of Fusion, J/g 270
140
Specific Heat Capacity, J/kg-K 470
140
Thermal Expansion, µm/m-K 11
6.6

Otherwise Unclassified Properties

Density, g/cm3 7.9
17
Embodied Water, L/kg 120
630

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82 to 110
100
Stiffness to Weight: Axial, points 14
6.3
Stiffness to Weight: Bending, points 24
11
Strength to Weight: Axial, points 57 to 65
9.1
Strength to Weight: Bending, points 39 to 43
8.9
Thermal Shock Resistance, points 56 to 64
31

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.010
Chromium (Cr), % 11 to 12.5
0
Copper (Cu), % 1.5 to 2.5
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 72.4 to 78.9
0 to 0.010
Manganese (Mn), % 0 to 0.5
0
Molybdenum (Mo), % 0 to 0.5
0 to 0.020
Nickel (Ni), % 7.5 to 9.5
0 to 0.010
Niobium (Nb), % 0.1 to 0.5
0 to 0.5
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.015
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0 to 0.2
0 to 0.0050
Sulfur (S), % 0 to 0.010
0
Tantalum (Ta), % 0
95.9 to 98
Titanium (Ti), % 1.0 to 1.4
0 to 0.010
Tungsten (W), % 0
2.0 to 3.5