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EN 1.8946 Steel vs. S38100 Stainless Steel

Both EN 1.8946 steel and S38100 stainless steel are iron alloys. They have 63% 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 EN 1.8946 steel and the bottom bar is S38100 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
190
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 16
45
Fatigue Strength, MPa 260
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
76
Shear Strength, MPa 350
400
Tensile Strength: Ultimate (UTS), MPa 580
580
Tensile Strength: Yield (Proof), MPa 390
230

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 420
970
Melting Completion (Liquidus), °C 1460
1400
Melting Onset (Solidus), °C 1420
1350
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 43
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.7
20
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
3.8
Embodied Energy, MJ/kg 23
54
Embodied Water, L/kg 51
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82
210
Resilience: Unit (Modulus of Resilience), kJ/m3 410
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20
21
Strength to Weight: Bending, points 20
20
Thermal Diffusivity, mm2/s 12
4.0
Thermal Shock Resistance, points 17
13

Alloy Composition

Aluminum (Al), % 0 to 0.030
0
Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 0.25 to 1.4
17 to 19
Copper (Cu), % 0.2 to 0.6
0
Iron (Fe), % 94.8 to 99.5
57.9 to 64
Manganese (Mn), % 0 to 1.1
0 to 2.0
Nickel (Ni), % 0 to 0.7
17.5 to 18.5
Niobium (Nb), % 0 to 0.065
0
Phosphorus (P), % 0.050 to 0.16
0 to 0.030
Silicon (Si), % 0 to 0.8
1.5 to 2.5
Sulfur (S), % 0 to 0.035
0 to 0.030
Titanium (Ti), % 0 to 0.12
0
Vanadium (V), % 0 to 0.14
0