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R05240 Alloy vs. EN 1.4618 Stainless Steel

R05240 alloy belongs to the otherwise unclassified metals classification, while EN 1.4618 stainless steel belongs to the iron alloys. 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 R05240 alloy and the bottom bar is EN 1.4618 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 150
200
Elongation at Break, % 25
51
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 57
77
Tensile Strength: Ultimate (UTS), MPa 270
680 to 700
Tensile Strength: Yield (Proof), MPa 170
250 to 260

Thermal Properties

Latent Heat of Fusion, J/g 210
280
Specific Heat Capacity, J/kg-K 190
480
Thermal Expansion, µm/m-K 6.8
16

Otherwise Unclassified Properties

Density, g/cm3 14
7.7
Embodied Water, L/kg 460
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
270 to 280
Resilience: Unit (Modulus of Resilience), kJ/m3 90
160 to 170
Stiffness to Weight: Axial, points 6.3
14
Stiffness to Weight: Bending, points 13
25
Strength to Weight: Axial, points 5.4
24 to 25
Strength to Weight: Bending, points 6.8
22 to 23
Thermal Shock Resistance, points 18
15 to 16

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.1
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0
1.0 to 2.5
Hydrogen (H), % 0 to 0.0015
0
Iron (Fe), % 0 to 0.010
62.7 to 72.5
Manganese (Mn), % 0
5.5 to 9.5
Molybdenum (Mo), % 0 to 0.020
0
Nickel (Ni), % 0 to 0.010
4.5 to 5.5
Niobium (Nb), % 35 to 42
0
Nitrogen (N), % 0 to 0.010
0 to 0.15
Oxygen (O), % 0 to 0.020
0
Phosphorus (P), % 0
0 to 0.070
Silicon (Si), % 0 to 0.0050
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Tantalum (Ta), % 57.9 to 65
0
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0 to 0.050
0