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ACI-ASTM CA28MWV Steel vs. SAE-AISI 8620 Steel

Both ACI-ASTM CA28MWV steel and SAE-AISI 8620 steel are iron alloys. They have 86% 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 CA28MWV steel and the bottom bar is SAE-AISI 8620 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 330
150 to 210
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
13 to 31
Fatigue Strength, MPa 470
270 to 360
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
73
Tensile Strength: Ultimate (UTS), MPa 1080
520 to 690
Tensile Strength: Yield (Proof), MPa 870
360 to 570

Thermal Properties

Latent Heat of Fusion, J/g 270
250
Maximum Temperature: Mechanical, °C 740
410
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
39
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.6
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 5.3
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 11
2.6
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 3.1
1.5
Embodied Energy, MJ/kg 44
20
Embodied Water, L/kg 100
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
86 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 1920
340 to 880
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 38
18 to 24
Strength to Weight: Bending, points 30
18 to 22
Thermal Diffusivity, mm2/s 6.6
10
Thermal Shock Resistance, points 40
15 to 20

Alloy Composition

Carbon (C), % 0.2 to 0.28
0.18 to 0.23
Chromium (Cr), % 11 to 12.5
0.4 to 0.6
Iron (Fe), % 81.4 to 85.8
96.9 to 98
Manganese (Mn), % 0.5 to 1.0
0.7 to 0.9
Molybdenum (Mo), % 0.9 to 1.3
0.15 to 0.25
Nickel (Ni), % 0.5 to 1.0
0.4 to 0.7
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040
Tungsten (W), % 0.9 to 1.3
0
Vanadium (V), % 0.2 to 0.3
0