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ACI-ASTM CD4MCuN Steel vs. ACI-ASTM CA40 Steel

Both ACI-ASTM CD4MCuN steel and ACI-ASTM CA40 steel are iron alloys. They have 77% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD4MCuN steel and the bottom bar is ACI-ASTM CA40 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 18
10
Fatigue Strength, MPa 340
460
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
76
Tensile Strength: Ultimate (UTS), MPa 770
910
Tensile Strength: Yield (Proof), MPa 550
860

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 450
390
Maximum Temperature: Mechanical, °C 1100
750
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1380
1500
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 17
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 18
7.5
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.5
2.0
Embodied Energy, MJ/kg 49
28
Embodied Water, L/kg 180
100

Common Calculations

PREN (Pitting Resistance) 35
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
89
Resilience: Unit (Modulus of Resilience), kJ/m3 760
1910
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
33
Strength to Weight: Bending, points 24
27
Thermal Diffusivity, mm2/s 4.5
6.7
Thermal Shock Resistance, points 21
33

Alloy Composition

Carbon (C), % 0 to 0.040
0.2 to 0.4
Chromium (Cr), % 24.5 to 26.5
11.5 to 14
Copper (Cu), % 2.7 to 3.3
0
Iron (Fe), % 59.5 to 66.3
81.5 to 88.3
Manganese (Mn), % 0 to 1.0
0 to 1.0
Molybdenum (Mo), % 1.7 to 2.3
0 to 0.5
Nickel (Ni), % 4.7 to 6.0
0 to 1.0
Nitrogen (N), % 0.1 to 0.25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.040
0 to 0.040