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ACI-ASTM CF8C Steel vs. SAE-AISI 1050 Steel

Both ACI-ASTM CF8C steel and SAE-AISI 1050 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 ACI-ASTM CF8C steel and the bottom bar is SAE-AISI 1050 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
200 to 220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
11 to 17
Fatigue Strength, MPa 220
260 to 400
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
72
Tensile Strength: Ultimate (UTS), MPa 530
690 to 790
Tensile Strength: Yield (Proof), MPa 260
390 to 650

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 980
400
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
51
Thermal Expansion, µm/m-K 17
12

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 19
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.7
1.4
Embodied Energy, MJ/kg 53
18
Embodied Water, L/kg 150
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
81 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 170
400 to 1130
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
25 to 28
Strength to Weight: Bending, points 19
22 to 24
Thermal Diffusivity, mm2/s 4.3
14
Thermal Shock Resistance, points 11
22 to 25

Alloy Composition

Carbon (C), % 0 to 0.080
0.48 to 0.55
Chromium (Cr), % 18 to 21
0
Iron (Fe), % 61.8 to 73
98.5 to 98.9
Manganese (Mn), % 0 to 1.5
0.6 to 0.9
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 9.0 to 12
0
Niobium (Nb), % 0 to 1.0
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