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Grade 6 Titanium vs. S20161 Stainless Steel

Grade 6 titanium belongs to the titanium alloys classification, while S20161 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 6 titanium and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 11
46
Fatigue Strength, MPa 290
360
Poisson's Ratio 0.32
0.28
Reduction in Area, % 27
45
Shear Modulus, GPa 39
76
Shear Strength, MPa 530
690
Tensile Strength: Ultimate (UTS), MPa 890
980
Tensile Strength: Yield (Proof), MPa 840
390

Thermal Properties

Latent Heat of Fusion, J/g 410
330
Maximum Temperature: Mechanical, °C 310
870
Melting Completion (Liquidus), °C 1580
1380
Melting Onset (Solidus), °C 1530
1330
Specific Heat Capacity, J/kg-K 550
490
Thermal Conductivity, W/m-K 7.8
15
Thermal Expansion, µm/m-K 9.4
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 36
12
Density, g/cm3 4.5
7.5
Embodied Carbon, kg CO2/kg material 30
2.7
Embodied Energy, MJ/kg 480
39
Embodied Water, L/kg 190
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
360
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
390
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
26
Strength to Weight: Axial, points 55
36
Strength to Weight: Bending, points 46
29
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 65
22

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 0
15 to 18
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
65.6 to 73.9
Manganese (Mn), % 0
4.0 to 6.0
Nickel (Ni), % 0
4.0 to 6.0
Nitrogen (N), % 0 to 0.030
0.080 to 0.2
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
3.0 to 4.0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0
Residuals, % 0 to 0.4
0