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SAE-AISI 1084 Steel vs. Grade 19 Titanium

SAE-AISI 1084 steel belongs to the iron alloys classification, while grade 19 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1084 steel and the bottom bar is grade 19 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 11
5.6 to 17
Fatigue Strength, MPa 320 to 370
550 to 620
Poisson's Ratio 0.29
0.32
Reduction in Area, % 28 to 45
22
Shear Modulus, GPa 72
47
Shear Strength, MPa 470 to 550
550 to 750
Tensile Strength: Ultimate (UTS), MPa 780 to 930
890 to 1300
Tensile Strength: Yield (Proof), MPa 510 to 600
870 to 1170

Thermal Properties

Latent Heat of Fusion, J/g 240
400
Maximum Temperature: Mechanical, °C 400
370
Melting Completion (Liquidus), °C 1450
1660
Melting Onset (Solidus), °C 1410
1600
Specific Heat Capacity, J/kg-K 470
520
Thermal Conductivity, W/m-K 51
6.2
Thermal Expansion, µm/m-K 12
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
45
Density, g/cm3 7.8
5.0
Embodied Carbon, kg CO2/kg material 1.4
47
Embodied Energy, MJ/kg 19
760
Embodied Water, L/kg 46
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81 to 89
70 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 700 to 960
3040 to 5530
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
33
Strength to Weight: Axial, points 28 to 33
49 to 72
Strength to Weight: Bending, points 24 to 27
41 to 53
Thermal Diffusivity, mm2/s 14
2.4
Thermal Shock Resistance, points 25 to 30
57 to 83

Alloy Composition


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Aluminum (Al), % 0
3.0 to 4.0
Carbon (C), % 0.8 to 0.93
0 to 0.050
Chromium (Cr), % 0
5.5 to 6.5
Hydrogen (H), % 0
0 to 0.020
Iron (Fe), % 98.1 to 98.6
0 to 0.3
Manganese (Mn), % 0.6 to 0.9
0
Molybdenum (Mo), % 0
3.5 to 4.5
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.12
Phosphorus (P), % 0 to 0.040
0
Sulfur (S), % 0 to 0.050
0
Titanium (Ti), % 0
71.1 to 77
Vanadium (V), % 0
7.5 to 8.5
Zirconium (Zr), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4

Comparable Variants