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ACI-ASTM CD4MCuN Steel vs. SAE-AISI 4150 Steel

Both ACI-ASTM CD4MCuN steel and SAE-AISI 4150 steel are iron alloys. They have 65% 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 CD4MCuN steel and the bottom bar is SAE-AISI 4150 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 18
12 to 20
Fatigue Strength, MPa 340
260 to 780
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 770
660 to 1310
Tensile Strength: Yield (Proof), MPa 550
380 to 1220

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
420
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
42
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 18
2.4
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.5
1.5
Embodied Energy, MJ/kg 49
20
Embodied Water, L/kg 180
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
82 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 760
380 to 3930
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
24 to 47
Strength to Weight: Bending, points 24
22 to 34
Thermal Diffusivity, mm2/s 4.5
11
Thermal Shock Resistance, points 21
19 to 39

Alloy Composition

Carbon (C), % 0 to 0.040
0.48 to 0.53
Chromium (Cr), % 24.5 to 26.5
0.8 to 1.1
Copper (Cu), % 2.7 to 3.3
0
Iron (Fe), % 59.5 to 66.3
96.7 to 97.7
Manganese (Mn), % 0 to 1.0
0.75 to 1.0
Molybdenum (Mo), % 1.7 to 2.3
0.15 to 0.25
Nickel (Ni), % 4.7 to 6.0
0
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0.15 to 0.35
Sulfur (S), % 0 to 0.040
0 to 0.040