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SAE-AISI D4 Steel vs. ACI-ASTM CC50 Steel

Both SAE-AISI D4 steel and ACI-ASTM CC50 steel are iron alloys. They have 81% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D4 steel and the bottom bar is ACI-ASTM CC50 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 74
80
Tensile Strength: Ultimate (UTS), MPa 760 to 2060
430

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1430
1420
Melting Onset (Solidus), °C 1380
1370
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 31
17
Thermal Expansion, µm/m-K 12
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 5.0
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
14
Density, g/cm3 7.7
7.6
Embodied Carbon, kg CO2/kg material 3.3
2.7
Embodied Energy, MJ/kg 49
39
Embodied Water, L/kg 100
170

Common Calculations

PREN (Pitting Resistance) 15
28
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 27 to 75
16
Strength to Weight: Bending, points 24 to 47
17
Thermal Diffusivity, mm2/s 8.3
4.5
Thermal Shock Resistance, points 23 to 63
14

Alloy Composition

Carbon (C), % 2.1 to 2.4
0 to 0.5
Chromium (Cr), % 11 to 13
26 to 30
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.6 to 86.3
62.9 to 74
Manganese (Mn), % 0 to 0.6
0 to 1.0
Molybdenum (Mo), % 0.7 to 1.2
0
Nickel (Ni), % 0 to 0.3
0 to 4.0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 1.5
Sulfur (S), % 0 to 0.030
0 to 0.040
Vanadium (V), % 0 to 1.0
0