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EN 1.6308 Steel vs. S82031 Stainless Steel

Both EN 1.6308 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 1.6308 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, % 23
39
Fatigue Strength, MPa 320
490
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Shear Strength, MPa 390
540
Tensile Strength: Ultimate (UTS), MPa 610
780
Tensile Strength: Yield (Proof), MPa 460
570

Thermal Properties

Latent Heat of Fusion, J/g 250
290
Maximum Temperature: Mechanical, °C 410
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 39
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.8
13
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 1.6
2.8
Embodied Energy, MJ/kg 22
39
Embodied Water, L/kg 50
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
280
Resilience: Unit (Modulus of Resilience), kJ/m3 550
820
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
28
Strength to Weight: Bending, points 20
24
Thermal Diffusivity, mm2/s 10
3.9
Thermal Shock Resistance, points 18
22

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.050
Chromium (Cr), % 0
19 to 22
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 96.4 to 97.9
68 to 78.3
Manganese (Mn), % 1.2 to 1.6
0 to 2.5
Molybdenum (Mo), % 0.45 to 0.55
0.6 to 1.4
Nickel (Ni), % 0.5 to 0.8
2.0 to 4.0
Nitrogen (N), % 0
0.14 to 0.24
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 0.8
Sulfur (S), % 0 to 0.015
0 to 0.0050
Vanadium (V), % 0 to 0.030
0