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SAE-AISI 1012 Steel vs. ACI-ASTM CF3MN Steel

Both SAE-AISI 1012 steel and ACI-ASTM CF3MN steel are iron alloys. They have 66% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1012 steel and the bottom bar is ACI-ASTM CF3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100 to 110
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 21 to 31
39
Fatigue Strength, MPa 150 to 230
250
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 360 to 400
580
Tensile Strength: Yield (Proof), MPa 200 to 330
290

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1010
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 53
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.9
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 7.9
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
19
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.9
Embodied Energy, MJ/kg 18
53
Embodied Water, L/kg 45
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 93
190
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 300
210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 13 to 14
20
Strength to Weight: Bending, points 14 to 15
20
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 11 to 13
13

Alloy Composition

Carbon (C), % 0.1 to 0.15
0 to 0.030
Chromium (Cr), % 0
17 to 22
Iron (Fe), % 99.16 to 99.6
58.7 to 71.9
Manganese (Mn), % 0.3 to 0.6
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
9.0 to 13
Nitrogen (N), % 0
0.1 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.5
Sulfur (S), % 0 to 0.050
0 to 0.040