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SAE-AISI 1144 Steel vs. ACI-ASTM CF10SMnN Steel

Both SAE-AISI 1144 steel and ACI-ASTM CF10SMnN steel are iron alloys. They have 64% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1144 steel and the bottom bar is ACI-ASTM CF10SMnN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 230
190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
34
Fatigue Strength, MPa 280 to 430
260
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
75
Tensile Strength: Ultimate (UTS), MPa 750 to 840
660
Tensile Strength: Yield (Proof), MPa 420 to 690
330

Thermal Properties

Latent Heat of Fusion, J/g 250
340
Maximum Temperature: Mechanical, °C 400
900
Melting Completion (Liquidus), °C 1450
1360
Melting Onset (Solidus), °C 1410
1310
Specific Heat Capacity, J/kg-K 470
500
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
15
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 19
45
Embodied Water, L/kg 47
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 110
180
Resilience: Unit (Modulus of Resilience), kJ/m3 480 to 1290
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 27 to 30
24
Strength to Weight: Bending, points 23 to 25
22
Thermal Shock Resistance, points 22 to 24
15

Alloy Composition

Carbon (C), % 0.4 to 0.48
0 to 0.1
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 97.5 to 98
59.1 to 65.4
Manganese (Mn), % 1.4 to 1.7
7.0 to 9.0
Nickel (Ni), % 0
8.0 to 9.0
Nitrogen (N), % 0
0.080 to 0.18
Phosphorus (P), % 0 to 0.040
0 to 0.060
Silicon (Si), % 0
3.5 to 4.5
Sulfur (S), % 0.24 to 0.33
0 to 0.030