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ACI-ASTM CE8MN Steel vs. EN 1.4031 Stainless Steel

Both ACI-ASTM CE8MN steel and EN 1.4031 stainless steel are iron alloys. They have 76% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CE8MN steel and the bottom bar is EN 1.4031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
11 to 13
Fatigue Strength, MPa 370
220 to 400
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 750
670 to 900
Tensile Strength: Yield (Proof), MPa 500
390 to 730

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 440
390
Maximum Temperature: Mechanical, °C 1100
770
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1400
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
30
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.7

Otherwise Unclassified Properties

Base Metal Price, % relative 21
7.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.2
1.9
Embodied Energy, MJ/kg 58
27
Embodied Water, L/kg 180
100

Common Calculations

PREN (Pitting Resistance) 40
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
77 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 620
380 to 1360
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
24 to 32
Strength to Weight: Bending, points 23
22 to 27
Thermal Diffusivity, mm2/s 4.2
8.1
Thermal Shock Resistance, points 21
23 to 32

Alloy Composition

Carbon (C), % 0 to 0.080
0.36 to 0.42
Chromium (Cr), % 22.5 to 25.5
12.5 to 14.5
Iron (Fe), % 56 to 66.4
83 to 87.1
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 3.0 to 4.5
0
Nickel (Ni), % 8.0 to 11
0
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.015