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ACI-ASTM CK35MN Steel vs. R56401 Titanium

ACI-ASTM CK35MN 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 (5, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CK35MN steel and the bottom bar is R56401 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
110
Elongation at Break, % 40
9.1
Fatigue Strength, MPa 270
480
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 81
40
Tensile Strength: Ultimate (UTS), MPa 650
940
Tensile Strength: Yield (Proof), MPa 310
850

Thermal Properties

Latent Heat of Fusion, J/g 310
410
Maximum Temperature: Mechanical, °C 1100
340
Melting Completion (Liquidus), °C 1460
1610
Melting Onset (Solidus), °C 1410
1560
Specific Heat Capacity, J/kg-K 470
560
Thermal Conductivity, W/m-K 12
7.1
Thermal Expansion, µm/m-K 16
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 31
36
Density, g/cm3 8.0
4.5
Embodied Carbon, kg CO2/kg material 5.9
38
Embodied Energy, MJ/kg 81
610
Embodied Water, L/kg 210
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
83
Resilience: Unit (Modulus of Resilience), kJ/m3 240
3440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 22
59
Strength to Weight: Bending, points 21
48
Thermal Diffusivity, mm2/s 3.3
2.9
Thermal Shock Resistance, points 14
67

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0 to 0.035
0 to 0.080
Chromium (Cr), % 22 to 24
0
Copper (Cu), % 0 to 0.4
0
Hydrogen (H), % 0
0 to 0.012
Iron (Fe), % 43.4 to 51.8
0 to 0.25
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 6.0 to 6.8
0
Nickel (Ni), % 20 to 22
0
Nitrogen (N), % 0.21 to 0.32
0 to 0.050
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
88.5 to 91
Vanadium (V), % 0
3.5 to 4.5