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ACI-ASTM CD6MN Steel vs. Titanium 4-4-2

ACI-ASTM CD6MN steel belongs to the iron alloys classification, while titanium 4-4-2 belongs to the titanium alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CD6MN steel and the bottom bar is titanium 4-4-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 28
10
Fatigue Strength, MPa 370
590 to 620
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 80
42
Tensile Strength: Ultimate (UTS), MPa 730
1150 to 1250
Tensile Strength: Yield (Proof), MPa 510
1030 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1100
310
Melting Completion (Liquidus), °C 1440
1610
Melting Onset (Solidus), °C 1390
1560
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 16
6.7
Thermal Expansion, µm/m-K 13
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 17
39
Density, g/cm3 7.7
4.7
Embodied Carbon, kg CO2/kg material 3.4
30
Embodied Energy, MJ/kg 48
480
Embodied Water, L/kg 170
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 650
4700 to 5160
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
34
Strength to Weight: Axial, points 26
68 to 74
Strength to Weight: Bending, points 23
52 to 55
Thermal Diffusivity, mm2/s 4.4
2.6
Thermal Shock Resistance, points 20
86 to 93

Alloy Composition

Aluminum (Al), % 0
3.0 to 5.0
Carbon (C), % 0 to 0.060
0 to 0.080
Chromium (Cr), % 24 to 27
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 62.1 to 70.1
0 to 0.2
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 1.8 to 2.5
3.0 to 5.0
Nickel (Ni), % 4.0 to 6.0
0
Nitrogen (N), % 0.15 to 0.25
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0.3 to 0.7
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0
85.8 to 92.2
Residuals, % 0
0 to 0.4