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S41050 Stainless Steel vs. EN 1.8918 Steel

Both S41050 stainless steel and EN 1.8918 steel are iron alloys. They have 88% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S41050 stainless steel and the bottom bar is EN 1.8918 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 25
19
Fatigue Strength, MPa 160
330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 300
400
Tensile Strength: Ultimate (UTS), MPa 470
640
Tensile Strength: Yield (Proof), MPa 230
490

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 720
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 27
46
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
2.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.9
1.7
Embodied Energy, MJ/kg 27
24
Embodied Water, L/kg 97
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 98
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
640
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
23
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 7.2
12
Thermal Shock Resistance, points 17
19

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.050
Carbon (C), % 0 to 0.040
0 to 0.2
Chromium (Cr), % 10.5 to 12.5
0 to 0.3
Copper (Cu), % 0
0 to 0.7
Iron (Fe), % 84.2 to 88.9
95.2 to 98.9
Manganese (Mn), % 0 to 1.0
1.1 to 1.7
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0.6 to 1.1
0 to 0.8
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0 to 0.1
0 to 0.025
Phosphorus (P), % 0 to 0.045
0 to 0.020
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.0050
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.2