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EN 1.1191 Steel vs. S20161 Stainless Steel

Both EN 1.1191 steel and S20161 stainless steel are iron alloys. They have 71% 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 1.1191 steel and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 200
250
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16 to 17
46
Fatigue Strength, MPa 210 to 290
360
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Shear Strength, MPa 380 to 430
690
Tensile Strength: Ultimate (UTS), MPa 630 to 700
980
Tensile Strength: Yield (Proof), MPa 310 to 440
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 48
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
12
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 19
39
Embodied Water, L/kg 47
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83 to 100
360
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 510
390
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 22 to 25
36
Strength to Weight: Bending, points 21 to 22
29
Thermal Diffusivity, mm2/s 13
4.0
Thermal Shock Resistance, points 20 to 22
22

Alloy Composition

Carbon (C), % 0.42 to 0.5
0 to 0.15
Chromium (Cr), % 0 to 0.4
15 to 18
Iron (Fe), % 97.3 to 99.08
65.6 to 73.9
Manganese (Mn), % 0.5 to 0.8
4.0 to 6.0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.4
4.0 to 6.0
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 0.4
3.0 to 4.0
Sulfur (S), % 0 to 0.035
0 to 0.040