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Grade 25 Titanium vs. SAE-AISI 1330 Steel

Grade 25 titanium belongs to the titanium alloys classification, while SAE-AISI 1330 steel belongs to the iron 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 grade 25 titanium and the bottom bar is SAE-AISI 1330 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 11
11 to 23
Fatigue Strength, MPa 550
210 to 380
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
73
Shear Strength, MPa 600
330 to 430
Tensile Strength: Ultimate (UTS), MPa 1000
520 to 710
Tensile Strength: Yield (Proof), MPa 940
290 to 610

Thermal Properties

Latent Heat of Fusion, J/g 410
250
Maximum Temperature: Mechanical, °C 340
400
Melting Completion (Liquidus), °C 1610
1460
Melting Onset (Solidus), °C 1560
1410
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.1
51
Thermal Expansion, µm/m-K 9.6
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.3

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 43
1.4
Embodied Energy, MJ/kg 700
19
Embodied Water, L/kg 320
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
76 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 4220
230 to 990
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 62
19 to 25
Strength to Weight: Bending, points 50
18 to 23
Thermal Diffusivity, mm2/s 2.8
14
Thermal Shock Resistance, points 71
17 to 23

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.080
0.28 to 0.33
Hydrogen (H), % 0 to 0.013
0
Iron (Fe), % 0 to 0.4
97.3 to 98
Manganese (Mn), % 0
1.6 to 1.9
Nickel (Ni), % 0.3 to 0.8
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 86.7 to 90.6
0
Vanadium (V), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0