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ACI-ASTM CE8MN Steel vs. S20161 Stainless Steel

Both ACI-ASTM CE8MN steel and S20161 stainless steel are iron alloys. They have 84% 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 ACI-ASTM CE8MN steel and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
46
Fatigue Strength, MPa 370
360
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 750
980
Tensile Strength: Yield (Proof), MPa 500
390

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1100
870
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1400
1330
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 13
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 21
12
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 4.2
2.7
Embodied Energy, MJ/kg 58
39
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 40
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
360
Resilience: Unit (Modulus of Resilience), kJ/m3 620
390
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 27
36
Strength to Weight: Bending, points 23
29
Thermal Diffusivity, mm2/s 4.2
4.0
Thermal Shock Resistance, points 21
22

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 22.5 to 25.5
15 to 18
Iron (Fe), % 56 to 66.4
65.6 to 73.9
Manganese (Mn), % 0 to 1.0
4.0 to 6.0
Molybdenum (Mo), % 3.0 to 4.5
0
Nickel (Ni), % 8.0 to 11
4.0 to 6.0
Nitrogen (N), % 0.1 to 0.3
0.080 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
3.0 to 4.0
Sulfur (S), % 0 to 0.040
0 to 0.040