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Grade 3 Titanium vs. SAE-AISI 1042 Steel

Grade 3 titanium belongs to the titanium alloys classification, while SAE-AISI 1042 steel belongs to the iron alloys. There are 32 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 3 titanium and the bottom bar is SAE-AISI 1042 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 21
14 to 18
Fatigue Strength, MPa 300
230 to 370
Poisson's Ratio 0.32
0.29
Reduction in Area, % 34
39 to 50
Shear Modulus, GPa 39
73
Shear Strength, MPa 320
380 to 420
Tensile Strength: Ultimate (UTS), MPa 510
620 to 700
Tensile Strength: Yield (Proof), MPa 440
340 to 580

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 21
52
Thermal Expansion, µm/m-K 9.2
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 6.6
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 37
1.8
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
1.4
Embodied Energy, MJ/kg 510
18
Embodied Water, L/kg 110
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
87 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 910
320 to 900
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 32
22 to 25
Strength to Weight: Bending, points 32
21 to 22
Thermal Diffusivity, mm2/s 8.6
14
Thermal Shock Resistance, points 37
20 to 22

Alloy Composition

Carbon (C), % 0 to 0.080
0.4 to 0.47
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
98.5 to 99
Manganese (Mn), % 0
0.6 to 0.9
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.35
0
Phosphorus (P), % 0
0 to 0.040
Sulfur (S), % 0
0 to 0.050
Titanium (Ti), % 98.8 to 100
0
Residuals, % 0 to 0.4
0