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ACI-ASTM CF8C Steel vs. ACI-ASTM CA28MWV Steel

Both ACI-ASTM CF8C steel and ACI-ASTM CA28MWV steel are iron alloys. Both are furnished in the heat treated (HT) condition. They have 81% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CF8C steel and the bottom bar is ACI-ASTM CA28MWV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
330
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
11
Fatigue Strength, MPa 220
470
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Tensile Strength: Ultimate (UTS), MPa 530
1080
Tensile Strength: Yield (Proof), MPa 260
870

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Maximum Temperature: Corrosion, °C 490
380
Maximum Temperature: Mechanical, °C 980
740
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
25
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
4.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
5.3

Otherwise Unclassified Properties

Base Metal Price, % relative 19
11
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 3.7
3.1
Embodied Energy, MJ/kg 53
44
Embodied Water, L/kg 150
100

Common Calculations

PREN (Pitting Resistance) 20
17
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
110
Resilience: Unit (Modulus of Resilience), kJ/m3 170
1920
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 19
38
Strength to Weight: Bending, points 19
30
Thermal Diffusivity, mm2/s 4.3
6.6
Thermal Shock Resistance, points 11
40

Alloy Composition

Carbon (C), % 0 to 0.080
0.2 to 0.28
Chromium (Cr), % 18 to 21
11 to 12.5
Iron (Fe), % 61.8 to 73
81.4 to 85.8
Manganese (Mn), % 0 to 1.5
0.5 to 1.0
Molybdenum (Mo), % 0 to 0.5
0.9 to 1.3
Nickel (Ni), % 9.0 to 12
0.5 to 1.0
Niobium (Nb), % 0 to 1.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 2.0
0 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.030
Tungsten (W), % 0
0.9 to 1.3
Vanadium (V), % 0
0.2 to 0.3