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S82031 Stainless Steel vs. EN 1.8945 Steel

Both S82031 stainless steel and EN 1.8945 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 S82031 stainless steel and the bottom bar is EN 1.8945 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
16
Fatigue Strength, MPa 490
260
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Shear Strength, MPa 540
350
Tensile Strength: Ultimate (UTS), MPa 780
580
Tensile Strength: Yield (Proof), MPa 570
390

Thermal Properties

Latent Heat of Fusion, J/g 290
250
Maximum Temperature: Mechanical, °C 980
420
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
42
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.5
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.5
Embodied Energy, MJ/kg 39
19
Embodied Water, L/kg 150
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 280
82
Resilience: Unit (Modulus of Resilience), kJ/m3 820
410
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
20
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 3.9
11
Thermal Shock Resistance, points 22
17

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.15
Chromium (Cr), % 19 to 22
0.25 to 1.4
Copper (Cu), % 0 to 1.0
0.2 to 0.6
Iron (Fe), % 68 to 78.3
95.1 to 99.5
Manganese (Mn), % 0 to 2.5
0 to 1.1
Molybdenum (Mo), % 0.6 to 1.4
0
Nickel (Ni), % 2.0 to 4.0
0 to 0.7
Nitrogen (N), % 0.14 to 0.24
0 to 0.010
Phosphorus (P), % 0 to 0.040
0.050 to 0.16
Silicon (Si), % 0 to 0.8
0 to 0.8
Sulfur (S), % 0 to 0.0050
0 to 0.040