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ACI-ASTM CF3MN Steel vs. EN 1.4374 Stainless Steel

Both ACI-ASTM CF3MN steel and EN 1.4374 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 32 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 ACI-ASTM CF3MN steel and the bottom bar is EN 1.4374 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
230
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
40
Fatigue Strength, MPa 250
340
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 580
800
Tensile Strength: Yield (Proof), MPa 290
400

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 1010
920
Melting Completion (Liquidus), °C 1440
1400
Melting Onset (Solidus), °C 1390
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 16
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 19
14
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.9
2.9
Embodied Energy, MJ/kg 53
42
Embodied Water, L/kg 160
150

Common Calculations

PREN (Pitting Resistance) 30
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
270
Resilience: Unit (Modulus of Resilience), kJ/m3 210
400
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
29
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 4.1
4.0
Thermal Shock Resistance, points 13
17

Alloy Composition

Carbon (C), % 0 to 0.030
0.050 to 0.1
Chromium (Cr), % 17 to 22
17.5 to 18.5
Copper (Cu), % 0
0 to 0.4
Iron (Fe), % 58.7 to 71.9
63.5 to 67.9
Manganese (Mn), % 0 to 1.5
9.0 to 10
Molybdenum (Mo), % 2.0 to 3.0
0 to 0.5
Nickel (Ni), % 9.0 to 13
5.0 to 6.0
Nitrogen (N), % 0.1 to 0.2
0.25 to 0.32
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.5
0.3 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030