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ACI-ASTM CF3MN Steel vs. SAE-AISI D4 Steel

Both ACI-ASTM CF3MN steel and SAE-AISI D4 steel are iron alloys. They have 79% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF3MN steel and the bottom bar is SAE-AISI D4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
8.4 to 15
Fatigue Strength, MPa 250
310 to 920
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
74
Tensile Strength: Ultimate (UTS), MPa 580
760 to 2060
Tensile Strength: Yield (Proof), MPa 290
470 to 1540

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1390
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
31
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
4.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
5.0

Otherwise Unclassified Properties

Base Metal Price, % relative 19
8.0
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.9
3.3
Embodied Energy, MJ/kg 53
49
Embodied Water, L/kg 160
100

Common Calculations

PREN (Pitting Resistance) 30
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
100 to 160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 20
27 to 75
Strength to Weight: Bending, points 20
24 to 47
Thermal Diffusivity, mm2/s 4.1
8.3
Thermal Shock Resistance, points 13
23 to 63

Alloy Composition

Carbon (C), % 0 to 0.030
2.1 to 2.4
Chromium (Cr), % 17 to 22
11 to 13
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 58.7 to 71.9
80.6 to 86.3
Manganese (Mn), % 0 to 1.5
0 to 0.6
Molybdenum (Mo), % 2.0 to 3.0
0.7 to 1.2
Nickel (Ni), % 9.0 to 13
0 to 0.3
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.5
0 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0
0 to 1.0