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SAE-AISI 1008 Steel vs. Grade 36 Titanium

SAE-AISI 1008 steel belongs to the iron alloys classification, while grade 36 titanium belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1008 steel and the bottom bar is grade 36 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 22 to 33
11
Fatigue Strength, MPa 150 to 220
300
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 73
39
Shear Strength, MPa 220 to 230
320
Tensile Strength: Ultimate (UTS), MPa 330 to 370
530
Tensile Strength: Yield (Proof), MPa 190 to 310
520

Thermal Properties

Latent Heat of Fusion, J/g 250
370
Maximum Temperature: Mechanical, °C 400
320
Melting Completion (Liquidus), °C 1470
2020
Melting Onset (Solidus), °C 1430
1950
Specific Heat Capacity, J/kg-K 470
420
Thermal Expansion, µm/m-K 12
8.1

Otherwise Unclassified Properties

Density, g/cm3 7.9
6.3
Embodied Carbon, kg CO2/kg material 1.4
58
Embodied Energy, MJ/kg 18
920
Embodied Water, L/kg 45
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 91
59
Resilience: Unit (Modulus of Resilience), kJ/m3 92 to 260
1260
Stiffness to Weight: Axial, points 13
9.3
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 12 to 13
23
Strength to Weight: Bending, points 13 to 15
23
Thermal Shock Resistance, points 10 to 12
45

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Hydrogen (H), % 0
0 to 0.0035
Iron (Fe), % 99.31 to 99.7
0 to 0.030
Manganese (Mn), % 0.3 to 0.5
0
Niobium (Nb), % 0
42 to 47
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.16
Phosphorus (P), % 0 to 0.040
0
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
52.3 to 58
Residuals, % 0
0 to 0.4