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EN 1.8915 Steel vs. S82031 Stainless Steel

Both EN 1.8915 steel and S82031 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 30 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 S82031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 19
39
Fatigue Strength, MPa 340
490
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 400
540
Tensile Strength: Ultimate (UTS), MPa 640
780
Tensile Strength: Yield (Proof), MPa 490
570

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 400
980
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 46
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.5
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 1.7
2.8
Embodied Energy, MJ/kg 24
39
Embodied Water, L/kg 51
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
280
Resilience: Unit (Modulus of Resilience), kJ/m3 640
820
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23
28
Strength to Weight: Bending, points 21
24
Thermal Diffusivity, mm2/s 12
3.9
Thermal Shock Resistance, points 19
22

Alloy Composition

Aluminum (Al), % 0.020 to 0.050
0
Carbon (C), % 0 to 0.2
0 to 0.050
Chromium (Cr), % 0 to 0.3
19 to 22
Copper (Cu), % 0 to 0.7
0 to 1.0
Iron (Fe), % 95.2 to 98.9
68 to 78.3
Manganese (Mn), % 1.1 to 1.7
0 to 2.5
Molybdenum (Mo), % 0 to 0.1
0.6 to 1.4
Nickel (Ni), % 0 to 0.8
2.0 to 4.0
Niobium (Nb), % 0 to 0.050
0
Nitrogen (N), % 0 to 0.025
0.14 to 0.24
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 0.8
Sulfur (S), % 0 to 0.0080
0 to 0.0050
Titanium (Ti), % 0 to 0.030
0
Vanadium (V), % 0 to 0.2
0