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SAE-AISI 1045 Steel vs. ACI-ASTM CF16Fa Steel

Both SAE-AISI 1045 steel and ACI-ASTM CF16Fa steel are iron alloys. They have 68% 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 1045 steel and the bottom bar is ACI-ASTM CF16Fa steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180 to 190
160
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 13 to 18
28
Fatigue Strength, MPa 220 to 370
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
77
Tensile Strength: Ultimate (UTS), MPa 620 to 680
540
Tensile Strength: Yield (Proof), MPa 330 to 580
230

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
980
Melting Completion (Liquidus), °C 1460
1420
Melting Onset (Solidus), °C 1420
1370
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
16
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
17
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.3
Embodied Energy, MJ/kg 18
47
Embodied Water, L/kg 46
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 93
120
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 900
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 24
19
Strength to Weight: Bending, points 21 to 22
19
Thermal Diffusivity, mm2/s 14
4.2
Thermal Shock Resistance, points 20 to 22
12

Alloy Composition

Carbon (C), % 0.43 to 0.5
0 to 0.16
Chromium (Cr), % 0
18 to 21
Iron (Fe), % 98.5 to 99
62.1 to 72.4
Manganese (Mn), % 0.6 to 0.9
0 to 1.5
Molybdenum (Mo), % 0
0.4 to 0.8
Nickel (Ni), % 0
9.0 to 12
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Sulfur (S), % 0 to 0.050
0.2 to 0.4