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ACI-ASTM CD4MCuN Steel vs. R56401 Titanium

ACI-ASTM CD4MCuN steel belongs to the iron alloys classification, while R56401 titanium belongs to the titanium alloys. 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 R56401 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 18
9.1
Fatigue Strength, MPa 340
480
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 79
40
Tensile Strength: Ultimate (UTS), MPa 770
940
Tensile Strength: Yield (Proof), MPa 550
850

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1100
340
Melting Completion (Liquidus), °C 1420
1610
Melting Onset (Solidus), °C 1380
1560
Specific Heat Capacity, J/kg-K 480
560
Thermal Conductivity, W/m-K 17
7.1
Thermal Expansion, µm/m-K 13
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 18
36
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 3.5
38
Embodied Energy, MJ/kg 49
610
Embodied Water, L/kg 180
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
83
Resilience: Unit (Modulus of Resilience), kJ/m3 760
3440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 28
59
Strength to Weight: Bending, points 24
48
Thermal Diffusivity, mm2/s 4.5
2.9
Thermal Shock Resistance, points 21
67

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0 to 0.040
0 to 0.080
Chromium (Cr), % 24.5 to 26.5
0
Copper (Cu), % 2.7 to 3.3
0
Hydrogen (H), % 0
0 to 0.012
Iron (Fe), % 59.5 to 66.3
0 to 0.25
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 1.7 to 2.3
0
Nickel (Ni), % 4.7 to 6.0
0
Nitrogen (N), % 0.1 to 0.25
0 to 0.050
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
88.5 to 91
Vanadium (V), % 0
3.5 to 4.5