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ACI-ASTM CF8 Steel vs. ASTM A182 Grade F911

Both ACI-ASTM CF8 steel and ASTM A182 grade F911 are iron alloys. They have 79% 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 F911.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
220
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 55
20
Fatigue Strength, MPa 260
350
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 540
690
Tensile Strength: Yield (Proof), MPa 260
500

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Mechanical, °C 980
600
Melting Completion (Liquidus), °C 1420
1480
Melting Onset (Solidus), °C 1430
1440
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
26
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
9.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
10

Otherwise Unclassified Properties

Base Metal Price, % relative 16
9.5
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.1
2.8
Embodied Energy, MJ/kg 44
40
Embodied Water, L/kg 150
90

Common Calculations

PREN (Pitting Resistance) 20
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
130
Resilience: Unit (Modulus of Resilience), kJ/m3 160
650
Stiffness to Weight: Axial, points 14
14
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
6.9
Thermal Shock Resistance, points 13
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.00030 to 0.0060
Carbon (C), % 0 to 0.080
0.090 to 0.13
Chromium (Cr), % 18 to 21
8.5 to 9.5
Iron (Fe), % 63.8 to 74
86.2 to 88.9
Manganese (Mn), % 0 to 1.5
0.3 to 0.6
Molybdenum (Mo), % 0 to 0.5
0.9 to 1.1
Nickel (Ni), % 8.0 to 11
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.040 to 0.090
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0 to 2.0
0.1 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.010
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
0.9 to 1.1
Vanadium (V), % 0
0.18 to 0.25
Zirconium (Zr), % 0
0 to 0.010