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ACI-ASTM CD6MN Steel vs. SAE-AISI D2 Steel

Both ACI-ASTM CD6MN steel and SAE-AISI D2 steel are iron alloys. They have 80% of their average alloy composition in common. There are 29 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 CD6MN steel and the bottom bar is SAE-AISI D2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 28
5.0 to 16
Fatigue Strength, MPa 370
310 to 860
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
75
Tensile Strength: Ultimate (UTS), MPa 730
760 to 2000
Tensile Strength: Yield (Proof), MPa 510
470 to 1510

Thermal Properties

Latent Heat of Fusion, J/g 300
270
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
31
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
4.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
5.1

Otherwise Unclassified Properties

Base Metal Price, % relative 17
8.0
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.4
3.4
Embodied Energy, MJ/kg 48
50
Embodied Water, L/kg 170
100

Common Calculations

PREN (Pitting Resistance) 36
15
Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
92 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 650
570 to 5940
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 26
27 to 72
Strength to Weight: Bending, points 23
24 to 46
Thermal Diffusivity, mm2/s 4.4
8.3
Thermal Shock Resistance, points 20
25 to 67

Alloy Composition

Carbon (C), % 0 to 0.060
1.4 to 1.6
Chromium (Cr), % 24 to 27
11 to 13
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 62.1 to 70.1
81.3 to 86.9
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 1.1