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SAE-AISI D2 Steel vs. ACI-ASTM CD3MN Steel

Both SAE-AISI D2 steel and ACI-ASTM CD3MN steel are iron alloys. They have 81% 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 SAE-AISI D2 steel and the bottom bar is ACI-ASTM CD3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.0 to 16
29
Fatigue Strength, MPa 310 to 860
340
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
79
Tensile Strength: Ultimate (UTS), MPa 760 to 2000
710
Tensile Strength: Yield (Proof), MPa 470 to 1510
460

Thermal Properties

Latent Heat of Fusion, J/g 270
300
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 31
16
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 5.1
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 8.0
18
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 3.4
3.6
Embodied Energy, MJ/kg 50
50
Embodied Water, L/kg 100
160

Common Calculations

PREN (Pitting Resistance) 15
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92 to 100
180
Resilience: Unit (Modulus of Resilience), kJ/m3 570 to 5940
530
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27 to 72
25
Strength to Weight: Bending, points 24 to 46
23
Thermal Diffusivity, mm2/s 8.3
4.3
Thermal Shock Resistance, points 25 to 67
20

Alloy Composition

Carbon (C), % 1.4 to 1.6
0 to 0.030
Chromium (Cr), % 11 to 13
21 to 23.5
Copper (Cu), % 0 to 0.25
0 to 1.0
Iron (Fe), % 81.3 to 86.9
62.6 to 71.9
Manganese (Mn), % 0 to 0.6
0 to 1.5
Molybdenum (Mo), % 0.7 to 1.2
2.5 to 3.5
Nickel (Ni), % 0 to 0.3
4.5 to 6.5
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Vanadium (V), % 0 to 1.1
0