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ACI-ASTM CD4MCu Steel vs. SAE-AISI 50B46 Steel

Both ACI-ASTM CD4MCu steel and SAE-AISI 50B46 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 CD4MCu steel and the bottom bar is SAE-AISI 50B46 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 18
21
Fatigue Strength, MPa 340
220
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
72
Tensile Strength: Ultimate (UTS), MPa 770
540
Tensile Strength: Yield (Proof), MPa 550
310

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1100
410
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1380
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 17
47
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 18
1.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.5
1.4
Embodied Energy, MJ/kg 49
19
Embodied Water, L/kg 180
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
99
Resilience: Unit (Modulus of Resilience), kJ/m3 760
260
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 28
19
Strength to Weight: Bending, points 24
19
Thermal Diffusivity, mm2/s 4.5
13
Thermal Shock Resistance, points 21
16

Alloy Composition

Boron (B), % 0
0.00050 to 0.0030
Carbon (C), % 0 to 0.040
0.44 to 0.49
Chromium (Cr), % 24.5 to 26.5
0.2 to 0.35
Copper (Cu), % 2.8 to 3.3
0
Iron (Fe), % 59.9 to 66.3
97.7 to 98.5
Manganese (Mn), % 0 to 1.0
0.75 to 1.0
Molybdenum (Mo), % 1.8 to 2.3
0
Nickel (Ni), % 4.8 to 6.0
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