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SAE-AISI M43 Steel vs. R56401 Titanium

SAE-AISI M43 steel belongs to the iron alloys classification, while R56401 titanium belongs to the titanium alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M43 steel and the bottom bar is R56401 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 810 to 2290
940

Thermal Properties

Latent Heat of Fusion, J/g 270
410
Melting Completion (Liquidus), °C 1550
1610
Melting Onset (Solidus), °C 1500
1560
Specific Heat Capacity, J/kg-K 450
560
Thermal Conductivity, W/m-K 19
7.1
Thermal Expansion, µm/m-K 12
9.6

Otherwise Unclassified Properties

Base Metal Price, % relative 33
36
Density, g/cm3 8.2
4.5
Embodied Carbon, kg CO2/kg material 8.5
38
Embodied Energy, MJ/kg 120
610
Embodied Water, L/kg 140
200

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 27 to 77
59
Strength to Weight: Bending, points 24 to 47
48
Thermal Diffusivity, mm2/s 5.3
2.9
Thermal Shock Resistance, points 25 to 71
67

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 1.2 to 1.3
0 to 0.080
Chromium (Cr), % 3.5 to 4.3
0
Cobalt (Co), % 7.8 to 8.8
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.012
Iron (Fe), % 70.8 to 76
0 to 0.25
Manganese (Mn), % 0.2 to 0.4
0
Molybdenum (Mo), % 7.5 to 8.5
0
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.15 to 0.65
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
88.5 to 91
Tungsten (W), % 2.3 to 3.0
0
Vanadium (V), % 1.5 to 1.8
3.5 to 4.5