MakeItFrom.com
Menu (ESC)

Grade 27 Titanium vs. SAE-AISI 1144 Steel

Grade 27 titanium belongs to the titanium alloys classification, while SAE-AISI 1144 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 27 titanium and the bottom bar is SAE-AISI 1144 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 27
11 to 17
Fatigue Strength, MPa 170
280 to 430
Poisson's Ratio 0.32
0.29
Reduction in Area, % 34
34 to 40
Shear Modulus, GPa 41
72
Shear Strength, MPa 180
460 to 510
Tensile Strength: Ultimate (UTS), MPa 270
750 to 840
Tensile Strength: Yield (Proof), MPa 230
420 to 690

Thermal Properties

Latent Heat of Fusion, J/g 420
250
Maximum Temperature: Mechanical, °C 320
400
Melting Completion (Liquidus), °C 1660
1450
Melting Onset (Solidus), °C 1610
1410
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
51
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 37
1.9
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 33
1.4
Embodied Energy, MJ/kg 530
19
Embodied Water, L/kg 320
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
91 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 240
480 to 1290
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 17
27 to 30
Strength to Weight: Bending, points 21
23 to 25
Thermal Diffusivity, mm2/s 8.8
14
Thermal Shock Resistance, points 21
22 to 24

Alloy Composition

Carbon (C), % 0 to 0.080
0.4 to 0.48
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
97.5 to 98
Manganese (Mn), % 0
1.4 to 1.7
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.040
Ruthenium (Ru), % 0.080 to 0.14
0
Sulfur (S), % 0
0.24 to 0.33
Titanium (Ti), % 99 to 99.92
0
Residuals, % 0 to 0.4
0