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SAE-AISI M2 Steel vs. R58150 Titanium

SAE-AISI M2 steel belongs to the iron alloys classification, while R58150 titanium belongs to the titanium alloys. There are 19 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 M2 steel and the bottom bar is R58150 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 77
52
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
770

Thermal Properties

Latent Heat of Fusion, J/g 260
410
Melting Completion (Liquidus), °C 1610
1760
Melting Onset (Solidus), °C 1570
1700
Specific Heat Capacity, J/kg-K 440
500
Thermal Expansion, µm/m-K 10
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 24
48
Density, g/cm3 8.4
5.4
Embodied Carbon, kg CO2/kg material 8.8
31
Embodied Energy, MJ/kg 130
480
Embodied Water, L/kg 98
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
32
Strength to Weight: Axial, points 25 to 71
40
Strength to Weight: Bending, points 22 to 44
35
Thermal Shock Resistance, points 27 to 76
48

Alloy Composition

Carbon (C), % 0.78 to 1.1
0 to 0.1
Chromium (Cr), % 3.8 to 4.5
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 78.5 to 83.4
0 to 0.1
Manganese (Mn), % 0.15 to 0.4
0
Molybdenum (Mo), % 4.5 to 5.5
14 to 16
Nickel (Ni), % 0 to 0.3
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.45
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
83.5 to 86
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0