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ACI-ASTM CF3MN Steel vs. EN 1.4742 Stainless Steel

Both ACI-ASTM CF3MN steel and EN 1.4742 stainless steel are iron alloys. They have 85% of their average alloy composition in common. There are 32 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 CF3MN steel and the bottom bar is EN 1.4742 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
180
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
17
Fatigue Strength, MPa 250
180
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Tensile Strength: Ultimate (UTS), MPa 580
600
Tensile Strength: Yield (Proof), MPa 290
300

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 420
410
Maximum Temperature: Mechanical, °C 1010
1000
Melting Completion (Liquidus), °C 1440
1420
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
19
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 19
9.0
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 3.9
2.2
Embodied Energy, MJ/kg 53
32
Embodied Water, L/kg 160
130

Common Calculations

PREN (Pitting Resistance) 30
18
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
84
Resilience: Unit (Modulus of Resilience), kJ/m3 210
230
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
22
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 4.1
5.1
Thermal Shock Resistance, points 13
21

Alloy Composition

Aluminum (Al), % 0
0.7 to 1.2
Carbon (C), % 0 to 0.030
0 to 0.12
Chromium (Cr), % 17 to 22
17 to 19
Iron (Fe), % 58.7 to 71.9
77.2 to 81.6
Manganese (Mn), % 0 to 1.5
0 to 1.0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 9.0 to 13
0
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.5
0.7 to 1.4
Sulfur (S), % 0 to 0.040
0 to 0.015