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AISI 409 Stainless Steel vs. R05240 Alloy

AISI 409 stainless steel belongs to the iron alloys classification, while R05240 alloy 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 AISI 409 stainless steel and the bottom bar is R05240 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
150
Elongation at Break, % 24
25
Poisson's Ratio 0.28
0.36
Shear Modulus, GPa 75
57
Tensile Strength: Ultimate (UTS), MPa 420
270
Tensile Strength: Yield (Proof), MPa 200
170

Thermal Properties

Latent Heat of Fusion, J/g 270
210
Specific Heat Capacity, J/kg-K 480
190
Thermal Expansion, µm/m-K 11
6.8

Otherwise Unclassified Properties

Density, g/cm3 7.7
14
Embodied Water, L/kg 94
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
59
Resilience: Unit (Modulus of Resilience), kJ/m3 100
90
Stiffness to Weight: Axial, points 14
6.3
Stiffness to Weight: Bending, points 25
13
Strength to Weight: Axial, points 15
5.4
Strength to Weight: Bending, points 16
6.8
Thermal Shock Resistance, points 15
18

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.010
Chromium (Cr), % 10.5 to 11.7
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 84.9 to 89.5
0 to 0.010
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0 to 0.5
0 to 0.010
Niobium (Nb), % 0
35 to 42
Nitrogen (N), % 0
0 to 0.010
Oxygen (O), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0 to 0.0050
Sulfur (S), % 0 to 0.030
0
Tantalum (Ta), % 0
57.9 to 65
Titanium (Ti), % 0 to 0.75
0 to 0.010
Tungsten (W), % 0
0 to 0.050