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EN 1.4401 Stainless Steel vs. R05240 Alloy

EN 1.4401 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 (16, in this case) are not shown.

For each property being compared, the top bar is EN 1.4401 stainless steel and the bottom bar is R05240 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
150
Elongation at Break, % 14 to 40
25
Poisson's Ratio 0.28
0.36
Shear Modulus, GPa 78
57
Tensile Strength: Ultimate (UTS), MPa 600 to 900
270
Tensile Strength: Yield (Proof), MPa 230 to 570
170

Thermal Properties

Latent Heat of Fusion, J/g 290
210
Specific Heat Capacity, J/kg-K 470
190
Thermal Expansion, µm/m-K 16
6.8

Otherwise Unclassified Properties

Density, g/cm3 7.9
14
Embodied Water, L/kg 150
460

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 190
59
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 800
90
Stiffness to Weight: Axial, points 14
6.3
Stiffness to Weight: Bending, points 25
13
Strength to Weight: Axial, points 21 to 32
5.4
Strength to Weight: Bending, points 20 to 26
6.8
Thermal Shock Resistance, points 13 to 20
18

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.010
Chromium (Cr), % 16.5 to 18.5
0
Hydrogen (H), % 0
0 to 0.0015
Iron (Fe), % 62.8 to 71.5
0 to 0.010
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 2.0 to 2.5
0 to 0.020
Nickel (Ni), % 10 to 13
0 to 0.010
Niobium (Nb), % 0
35 to 42
Nitrogen (N), % 0 to 0.1
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 0.015
0
Tantalum (Ta), % 0
57.9 to 65
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0 to 0.050