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ACI-ASTM CE8MN Steel vs. Grade Ti-Pd8A Titanium

ACI-ASTM CE8MN steel belongs to the iron alloys classification, while grade Ti-Pd8A titanium belongs to the titanium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CE8MN steel and the bottom bar is grade Ti-Pd8A titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 29
13
Fatigue Strength, MPa 370
260
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 80
40
Tensile Strength: Ultimate (UTS), MPa 750
500
Tensile Strength: Yield (Proof), MPa 500
430

Thermal Properties

Latent Heat of Fusion, J/g 300
420
Maximum Temperature: Mechanical, °C 1100
320
Melting Completion (Liquidus), °C 1440
1660
Melting Onset (Solidus), °C 1400
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 16
21
Thermal Expansion, µm/m-K 13
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
6.9

Otherwise Unclassified Properties

Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 4.2
49
Embodied Energy, MJ/kg 58
840
Embodied Water, L/kg 180
520

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
65
Resilience: Unit (Modulus of Resilience), kJ/m3 620
880
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 27
31
Strength to Weight: Bending, points 23
31
Thermal Diffusivity, mm2/s 4.2
8.6
Thermal Shock Resistance, points 21
39

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.1
Chromium (Cr), % 22.5 to 25.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 56 to 66.4
0 to 0.25
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 3.0 to 4.5
0
Nickel (Ni), % 8.0 to 11
0 to 0.050
Nitrogen (N), % 0.1 to 0.3
0
Oxygen (O), % 0
0 to 0.4
Palladium (Pd), % 0
0.12 to 0.3
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.040
0
Titanium (Ti), % 0
98.8 to 99.9
Residuals, % 0
0 to 0.4