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ACI-ASTM CD6MN Steel vs. SAE-AISI D5 Steel

Both ACI-ASTM CD6MN steel and SAE-AISI D5 steel are iron alloys. They have 80% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD6MN steel and the bottom bar is SAE-AISI D5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
5.4 to 14
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
75
Tensile Strength: Ultimate (UTS), MPa 730
770 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
27
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
4.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
4.9

Otherwise Unclassified Properties

Base Metal Price, % relative 17
13
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.4
3.5
Embodied Energy, MJ/kg 48
51
Embodied Water, L/kg 170
120

Common Calculations

PREN (Pitting Resistance) 36
15
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
28 to 73
Strength to Weight: Bending, points 23
24 to 46
Thermal Diffusivity, mm2/s 4.4
7.4
Thermal Shock Resistance, points 20
26 to 67

Alloy Composition

Carbon (C), % 0 to 0.060
1.4 to 1.6
Chromium (Cr), % 24 to 27
11 to 13
Cobalt (Co), % 0
2.5 to 3.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 62.1 to 70.1
77.9 to 84.4
Manganese (Mn), % 0 to 1.0
0 to 0.6
Molybdenum (Mo), % 1.8 to 2.5
0.7 to 1.2
Nickel (Ni), % 4.0 to 6.0
0 to 0.3
Nitrogen (N), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0
0 to 1.0