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Grade 6 Titanium vs. S64512 Stainless Steel

Grade 6 titanium belongs to the titanium alloys classification, while S64512 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 S64512 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 11
17
Fatigue Strength, MPa 290
540
Poisson's Ratio 0.32
0.28
Reduction in Area, % 27
34
Shear Modulus, GPa 39
76
Shear Strength, MPa 530
700
Tensile Strength: Ultimate (UTS), MPa 890
1140
Tensile Strength: Yield (Proof), MPa 840
890

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Maximum Temperature: Mechanical, °C 310
750
Melting Completion (Liquidus), °C 1580
1460
Melting Onset (Solidus), °C 1530
1420
Specific Heat Capacity, J/kg-K 550
470
Thermal Conductivity, W/m-K 7.8
28
Thermal Expansion, µm/m-K 9.4
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
4.1

Otherwise Unclassified Properties

Base Metal Price, % relative 36
10
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 30
3.3
Embodied Energy, MJ/kg 480
47
Embodied Water, L/kg 190
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
180
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
2020
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 55
40
Strength to Weight: Bending, points 46
31
Thermal Diffusivity, mm2/s 3.2
7.5
Thermal Shock Resistance, points 65
42

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.080
0.080 to 0.15
Chromium (Cr), % 0
11 to 12.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
80.6 to 84.7
Manganese (Mn), % 0
0.5 to 0.9
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0
2.0 to 3.0
Nitrogen (N), % 0 to 0.030
0.010 to 0.050
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.35
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0
Vanadium (V), % 0
0.25 to 0.4
Residuals, % 0 to 0.4
0