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EN 1.4905 Stainless Steel vs. EN 1.8151 Steel

Both EN 1.4905 stainless steel and EN 1.8151 steel are iron alloys. They have 89% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is EN 1.4905 stainless steel and the bottom bar is EN 1.8151 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 740
670 to 1940

Thermal Properties

Latent Heat of Fusion, J/g 270
270
Maximum Temperature: Mechanical, °C 660
410
Melting Completion (Liquidus), °C 1480
1440
Melting Onset (Solidus), °C 1440
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 26
50
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 4.2
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
2.2
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 2.8
1.8
Embodied Energy, MJ/kg 40
25
Embodied Water, L/kg 90
49

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
24 to 70
Strength to Weight: Bending, points 23
22 to 45
Thermal Diffusivity, mm2/s 7.0
14
Thermal Shock Resistance, points 25
20 to 58

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Boron (B), % 0.00050 to 0.0050
0
Carbon (C), % 0.090 to 0.13
0.4 to 0.5
Chromium (Cr), % 8.5 to 9.5
0.4 to 0.8
Iron (Fe), % 86.2 to 88.8
95.9 to 97.2
Manganese (Mn), % 0.3 to 0.6
0.6 to 0.9
Molybdenum (Mo), % 0.9 to 1.1
0
Nickel (Ni), % 0.1 to 0.4
0
Niobium (Nb), % 0.060 to 0.1
0
Nitrogen (N), % 0.050 to 0.090
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Silicon (Si), % 0.1 to 0.5
1.3 to 1.7
Sulfur (S), % 0 to 0.010
0 to 0.025
Tungsten (W), % 0.9 to 1.1
0
Vanadium (V), % 0.18 to 0.25
0.1 to 0.2