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ACI-ASTM CA28MWV Steel vs. SAE-AISI 1078 Steel

Both ACI-ASTM CA28MWV steel and SAE-AISI 1078 steel are iron alloys. They have 84% 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 CA28MWV steel and the bottom bar is SAE-AISI 1078 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
220 to 230
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
11 to 14
Fatigue Strength, MPa 470
270 to 350
Poisson's Ratio 0.28
0.29
Reduction in Area, % 27
34 to 45
Shear Modulus, GPa 76
72
Tensile Strength: Ultimate (UTS), MPa 1080
730 to 780
Tensile Strength: Yield (Proof), MPa 870
430 to 570

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 740
400
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1430
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 25
49
Thermal Expansion, µm/m-K 10
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.6
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 5.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 11
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.4
Embodied Energy, MJ/kg 44
18
Embodied Water, L/kg 100
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
77 to 90
Resilience: Unit (Modulus of Resilience), kJ/m3 1920
490 to 860
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 38
26 to 28
Strength to Weight: Bending, points 30
23 to 24
Thermal Diffusivity, mm2/s 6.6
13
Thermal Shock Resistance, points 40
25 to 26

Alloy Composition

Carbon (C), % 0.2 to 0.28
0.72 to 0.85
Chromium (Cr), % 11 to 12.5
0
Iron (Fe), % 81.4 to 85.8
98.5 to 99
Manganese (Mn), % 0.5 to 1.0
0.3 to 0.6
Molybdenum (Mo), % 0.9 to 1.3
0
Nickel (Ni), % 0.5 to 1.0
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0 to 0.050
Tungsten (W), % 0.9 to 1.3
0
Vanadium (V), % 0.2 to 0.3
0