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Grade 7 Titanium vs. SAE-AISI 1019 Steel

Grade 7 titanium belongs to the titanium alloys classification, while SAE-AISI 1019 steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is grade 7 titanium and the bottom bar is SAE-AISI 1019 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
130 to 140
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 24
17 to 29
Fatigue Strength, MPa 250
190 to 290
Poisson's Ratio 0.32
0.29
Reduction in Area, % 34
46 to 56
Shear Modulus, GPa 38
73
Shear Strength, MPa 270
300 to 320
Tensile Strength: Ultimate (UTS), MPa 420
470 to 520
Tensile Strength: Yield (Proof), MPa 340
250 to 430

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
400
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 22
52
Thermal Expansion, µm/m-K 9.2
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
8.0

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 47
1.4
Embodied Energy, MJ/kg 800
18
Embodied Water, L/kg 470
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95
82 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 560
160 to 500
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 26
17 to 18
Strength to Weight: Bending, points 28
17 to 18
Thermal Diffusivity, mm2/s 8.9
14
Thermal Shock Resistance, points 31
15 to 16

Alloy Composition

Carbon (C), % 0 to 0.080
0.15 to 0.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
98.7 to 99.15
Manganese (Mn), % 0
0.7 to 1.0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0.12 to 0.25
0
Phosphorus (P), % 0
0 to 0.040
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 98.7 to 99.88
0
Residuals, % 0 to 0.4
0