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SAE-AISI 5160 Steel vs. ACI-ASTM CF8 Steel

Both SAE-AISI 5160 steel and ACI-ASTM CF8 steel are iron alloys. They have 71% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 5160 steel and the bottom bar is ACI-ASTM CF8 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 340
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 18
55
Fatigue Strength, MPa 180 to 650
260
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 660 to 1150
540
Tensile Strength: Yield (Proof), MPa 280 to 1010
260

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 420
980
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 43
16
Thermal Expansion, µm/m-K 13
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
16
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.1
Embodied Energy, MJ/kg 19
44
Embodied Water, L/kg 50
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 73 to 160
240
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 2700
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 23 to 41
19
Strength to Weight: Bending, points 22 to 31
19
Thermal Diffusivity, mm2/s 12
4.3
Thermal Shock Resistance, points 19 to 34
13

Alloy Composition

Carbon (C), % 0.56 to 0.61
0 to 0.080
Chromium (Cr), % 0.7 to 0.9
18 to 21
Iron (Fe), % 97.1 to 97.8
63.8 to 74
Manganese (Mn), % 0.75 to 1.0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
8.0 to 11
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 2.0
Sulfur (S), % 0 to 0.040
0 to 0.040