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ACI-ASTM CF8 Steel vs. ASTM A182 Grade F24

Both ACI-ASTM CF8 steel and ASTM A182 grade F24 are iron alloys. They have 72% of their average alloy composition in common. There are 31 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 ACI-ASTM CF8 steel and the bottom bar is ASTM A182 grade F24.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 55
23
Fatigue Strength, MPa 260
330
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 540
670
Tensile Strength: Yield (Proof), MPa 260
460

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Maximum Temperature: Mechanical, °C 980
460
Melting Completion (Liquidus), °C 1420
1470
Melting Onset (Solidus), °C 1430
1430
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
39
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 16
4.0
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.1
2.3
Embodied Energy, MJ/kg 44
33
Embodied Water, L/kg 150
61

Common Calculations

PREN (Pitting Resistance) 20
6.7
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
140
Resilience: Unit (Modulus of Resilience), kJ/m3 160
570
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
24
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 4.3
11
Thermal Shock Resistance, points 13
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0015 to 0.0070
Carbon (C), % 0 to 0.080
0.050 to 0.1
Chromium (Cr), % 18 to 21
2.2 to 2.6
Iron (Fe), % 63.8 to 74
94.5 to 96.1
Manganese (Mn), % 0 to 1.5
0.3 to 0.7
Molybdenum (Mo), % 0 to 0.5
0.9 to 1.1
Nickel (Ni), % 8.0 to 11
0
Nitrogen (N), % 0
0 to 0.12
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 2.0
0.15 to 0.45
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
0.060 to 0.1
Vanadium (V), % 0
0.2 to 0.3