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SAE-AISI 1064 Steel vs. ACI-ASTM CF8M Steel

Both SAE-AISI 1064 steel and ACI-ASTM CF8M 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 1064 steel and the bottom bar is ACI-ASTM CF8M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220
170
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 13
50
Fatigue Strength, MPa 300
280
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Tensile Strength: Ultimate (UTS), MPa 720 to 730
540
Tensile Strength: Yield (Proof), MPa 470 to 480
290

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1000
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
16
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
19
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.8
Embodied Energy, MJ/kg 19
53
Embodied Water, L/kg 46
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 81
230
Resilience: Unit (Modulus of Resilience), kJ/m3 600 to 630
210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 25 to 26
19
Strength to Weight: Bending, points 23
19
Thermal Diffusivity, mm2/s 14
4.3
Thermal Shock Resistance, points 25
12

Alloy Composition

Carbon (C), % 0.6 to 0.7
0 to 0.080
Chromium (Cr), % 0
18 to 21
Iron (Fe), % 98.4 to 98.9
60.3 to 71
Manganese (Mn), % 0.5 to 0.8
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
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 to 0.040