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S20431 Stainless Steel vs. EN 1.8824 Steel

Both S20431 stainless steel and EN 1.8824 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 (4, in this case) are not shown.

For each property being compared, the top bar is S20431 stainless steel and the bottom bar is EN 1.8824 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
170
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 46
22
Fatigue Strength, MPa 320
310
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 500
370
Tensile Strength: Ultimate (UTS), MPa 710
580
Tensile Strength: Yield (Proof), MPa 350
440

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Maximum Temperature: Mechanical, °C 890
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
49
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.3
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.5
1.6
Embodied Energy, MJ/kg 36
21
Embodied Water, L/kg 140
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 270
120
Resilience: Unit (Modulus of Resilience), kJ/m3 310
530
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
21
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 4.0
13
Thermal Shock Resistance, points 15
17

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.040
Carbon (C), % 0 to 0.12
0 to 0.16
Chromium (Cr), % 17 to 18
0
Copper (Cu), % 1.5 to 3.5
0
Iron (Fe), % 66.1 to 74.4
96.6 to 99.98
Manganese (Mn), % 5.0 to 7.0
0 to 1.7
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 2.0 to 4.0
0 to 0.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0.1 to 0.25
0 to 0.020
Phosphorus (P), % 0 to 0.045
0 to 0.025
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.1