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Grade 12 Titanium vs. S82441 Stainless Steel

Grade 12 titanium belongs to the titanium alloys classification, while S82441 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade 12 titanium and the bottom bar is S82441 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
250
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 21
28
Fatigue Strength, MPa 280
400
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 39
79
Shear Strength, MPa 330
490
Tensile Strength: Ultimate (UTS), MPa 530
760
Tensile Strength: Yield (Proof), MPa 410
550

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Maximum Temperature: Mechanical, °C 320
1090
Melting Completion (Liquidus), °C 1660
1430
Melting Onset (Solidus), °C 1610
1380
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 9.6
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 6.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 37
16
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 31
3.2
Embodied Energy, MJ/kg 500
45
Embodied Water, L/kg 110
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
190
Resilience: Unit (Modulus of Resilience), kJ/m3 770
740
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 32
27
Strength to Weight: Bending, points 32
24
Thermal Diffusivity, mm2/s 8.5
3.9
Thermal Shock Resistance, points 37
21

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 0
0.1 to 0.8
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
62.6 to 70.2
Manganese (Mn), % 0
2.5 to 4.0
Molybdenum (Mo), % 0.2 to 0.4
1.0 to 2.0
Nickel (Ni), % 0.6 to 0.9
3.0 to 4.5
Nitrogen (N), % 0 to 0.030
0.2 to 0.3
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 0.7
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 97.6 to 99.2
0
Residuals, % 0 to 0.4
0