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EN 1.4872 Stainless Steel vs. ACI-ASTM CE8MN Steel

Both EN 1.4872 stainless steel and ACI-ASTM CE8MN steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4872 stainless steel and the bottom bar is ACI-ASTM CE8MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
29
Fatigue Strength, MPa 410
370
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 950
750
Tensile Strength: Yield (Proof), MPa 560
500

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 440
440
Maximum Temperature: Mechanical, °C 1150
1100
Melting Completion (Liquidus), °C 1390
1440
Melting Onset (Solidus), °C 1340
1400
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 17
21
Density, g/cm3 7.6
7.8
Embodied Carbon, kg CO2/kg material 3.3
4.2
Embodied Energy, MJ/kg 47
58
Embodied Water, L/kg 180
180

Common Calculations

PREN (Pitting Resistance) 30
40
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
190
Resilience: Unit (Modulus of Resilience), kJ/m3 780
620
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 35
27
Strength to Weight: Bending, points 28
23
Thermal Diffusivity, mm2/s 3.9
4.2
Thermal Shock Resistance, points 21
21

Alloy Composition

Carbon (C), % 0.2 to 0.3
0 to 0.080
Chromium (Cr), % 24 to 26
22.5 to 25.5
Iron (Fe), % 54.2 to 61.6
56 to 66.4
Manganese (Mn), % 8.0 to 10
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 4.5
Nickel (Ni), % 6.0 to 8.0
8.0 to 11
Nitrogen (N), % 0.2 to 0.4
0.1 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.015
0 to 0.040