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ACI-ASTM CF8M Steel vs. SAE-AISI 1524 Steel

Both ACI-ASTM CF8M steel and SAE-AISI 1524 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 ACI-ASTM CF8M steel and the bottom bar is SAE-AISI 1524 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170 to 180
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 50
14 to 22
Fatigue Strength, MPa 280
230 to 340
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
73
Tensile Strength: Ultimate (UTS), MPa 540
570 to 650
Tensile Strength: Yield (Proof), MPa 290
320 to 540

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1000
400
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
52
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
8.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
9.5

Otherwise Unclassified Properties

Base Metal Price, % relative 19
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.8
1.4
Embodied Energy, MJ/kg 53
19
Embodied Water, L/kg 160
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
84 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 210
270 to 760
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
20 to 23
Strength to Weight: Bending, points 19
19 to 21
Thermal Diffusivity, mm2/s 4.3
14
Thermal Shock Resistance, points 12
18 to 21

Alloy Composition

Carbon (C), % 0 to 0.080
0.19 to 0.25
Chromium (Cr), % 18 to 21
0
Iron (Fe), % 60.3 to 71
98 to 98.5
Manganese (Mn), % 0 to 1.5
1.4 to 1.7
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 9.0 to 12
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 2.0
0
Sulfur (S), % 0 to 0.040
0 to 0.050