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ACI-ASTM CD3MCuN Steel vs. SAE-AISI 4130 Steel

Both ACI-ASTM CD3MCuN steel and SAE-AISI 4130 steel are iron alloys. They have 64% of their average alloy composition in common. There are 29 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 CD3MCuN steel and the bottom bar is SAE-AISI 4130 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 29
13 to 26
Fatigue Strength, MPa 370
320 to 660
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 790
530 to 1040
Tensile Strength: Yield (Proof), MPa 500
440 to 980

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 15
43
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.9
1.5
Embodied Energy, MJ/kg 54
20
Embodied Water, L/kg 180
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
83 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 620
500 to 2550
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
19 to 37
Strength to Weight: Bending, points 24
19 to 29
Thermal Diffusivity, mm2/s 4.1
12
Thermal Shock Resistance, points 22
16 to 31

Alloy Composition

Carbon (C), % 0 to 0.030
0.28 to 0.33
Chromium (Cr), % 24 to 26.7
0.8 to 1.1
Copper (Cu), % 1.4 to 1.9
0
Iron (Fe), % 58.2 to 65.9
97.3 to 98.2
Manganese (Mn), % 0 to 1.2
0.4 to 0.6
Molybdenum (Mo), % 2.9 to 3.8
0.15 to 0.25
Nickel (Ni), % 5.6 to 6.7
0
Nitrogen (N), % 0.22 to 0.33
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.1
0.15 to 0.35
Sulfur (S), % 0 to 0.030
0 to 0.040