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Grade 12 Titanium vs. SAE-AISI 1132 Steel

Grade 12 titanium belongs to the titanium alloys classification, while SAE-AISI 1132 steel belongs to the iron alloys.

For each property being compared, the top bar is grade 12 titanium and the bottom bar is SAE-AISI 1132 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
190 to 210
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 21
14 to 18
Fatigue Strength, MPa 280
240 to 380
Poisson's Ratio 0.32
0.29
Reduction in Area, % 28
39 to 46
Shear Modulus, GPa 39
73
Shear Strength, MPa 330
400 to 440
Tensile Strength: Ultimate (UTS), MPa 530
640 to 720
Tensile Strength: Yield (Proof), MPa 410
350 to 590

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
51
Thermal Expansion, µm/m-K 9.6
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 6.6
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 31
1.4
Embodied Energy, MJ/kg 500
19
Embodied Water, L/kg 110
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
93 to 97
Resilience: Unit (Modulus of Resilience), kJ/m3 770
330 to 940
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 32
23 to 25
Strength to Weight: Bending, points 32
21 to 23
Thermal Diffusivity, mm2/s 8.5
14
Thermal Shock Resistance, points 37
19 to 22

Alloy Composition

Carbon (C), % 0 to 0.080
0.24 to 0.34
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
97.8 to 98.3
Manganese (Mn), % 0
1.4 to 1.7
Molybdenum (Mo), % 0.2 to 0.4
0
Nickel (Ni), % 0.6 to 0.9
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.040
Sulfur (S), % 0
0.080 to 0.13
Titanium (Ti), % 97.6 to 99.2
0
Residuals, % 0 to 0.4
0