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Grade 14 Titanium vs. S30615 Stainless Steel

Grade 14 titanium belongs to the titanium alloys classification, while S30615 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade 14 titanium and the bottom bar is S30615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
39
Fatigue Strength, MPa 220
270
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
75
Shear Strength, MPa 290
470
Tensile Strength: Ultimate (UTS), MPa 460
690
Tensile Strength: Yield (Proof), MPa 310
310

Thermal Properties

Latent Heat of Fusion, J/g 420
340
Maximum Temperature: Mechanical, °C 320
960
Melting Completion (Liquidus), °C 1660
1370
Melting Onset (Solidus), °C 1610
1320
Specific Heat Capacity, J/kg-K 540
500
Thermal Conductivity, W/m-K 21
14
Thermal Expansion, µm/m-K 8.7
16

Otherwise Unclassified Properties

Base Metal Price, % relative 37
19
Density, g/cm3 4.5
7.6
Embodied Carbon, kg CO2/kg material 32
3.7
Embodied Energy, MJ/kg 520
53
Embodied Water, L/kg 210
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 93
220
Resilience: Unit (Modulus of Resilience), kJ/m3 450
260
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 28
25
Strength to Weight: Bending, points 29
23
Thermal Diffusivity, mm2/s 8.5
3.7
Thermal Shock Resistance, points 35
16

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.5
Carbon (C), % 0 to 0.080
0.16 to 0.24
Chromium (Cr), % 0
17 to 19.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
56.7 to 65.3
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0.4 to 0.6
13.5 to 16
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0
Phosphorus (P), % 0
0 to 0.030
Ruthenium (Ru), % 0.040 to 0.060
0
Silicon (Si), % 0
3.2 to 4.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98.4 to 99.56
0
Residuals, % 0 to 0.4
0