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EN 1.8915 Steel vs. S20161 Stainless Steel

Both EN 1.8915 steel and S20161 stainless steel are iron alloys. They have 72% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.8915 steel and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 19
46
Fatigue Strength, MPa 340
360
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 400
690
Tensile Strength: Ultimate (UTS), MPa 640
980
Tensile Strength: Yield (Proof), MPa 490
390

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 400
870
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1330
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 46
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
12
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 1.7
2.7
Embodied Energy, MJ/kg 24
39
Embodied Water, L/kg 51
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
360
Resilience: Unit (Modulus of Resilience), kJ/m3 640
390
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 23
36
Strength to Weight: Bending, points 21
29
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 19
22

Alloy Composition

Aluminum (Al), % 0.020 to 0.050
0
Carbon (C), % 0 to 0.2
0 to 0.15
Chromium (Cr), % 0 to 0.3
15 to 18
Copper (Cu), % 0 to 0.7
0
Iron (Fe), % 95.2 to 98.9
65.6 to 73.9
Manganese (Mn), % 1.1 to 1.7
4.0 to 6.0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.8
4.0 to 6.0
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.025
0.080 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.6
3.0 to 4.0
Sulfur (S), % 0 to 0.0080
0 to 0.040
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.2
0