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Grade 6 Titanium vs. EN 1.4986 Stainless Steel

Grade 6 titanium belongs to the titanium alloys classification, while EN 1.4986 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade 6 titanium and the bottom bar is EN 1.4986 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 11
18
Fatigue Strength, MPa 290
350
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 39
77
Shear Strength, MPa 530
460
Tensile Strength: Ultimate (UTS), MPa 890
750
Tensile Strength: Yield (Proof), MPa 840
560

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Maximum Temperature: Mechanical, °C 310
940
Melting Completion (Liquidus), °C 1580
1450
Melting Onset (Solidus), °C 1530
1400
Specific Heat Capacity, J/kg-K 550
470
Thermal Conductivity, W/m-K 7.8
15
Thermal Expansion, µm/m-K 9.4
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 36
25
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 30
4.8
Embodied Energy, MJ/kg 480
67
Embodied Water, L/kg 190
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
120
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
790
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 55
26
Strength to Weight: Bending, points 46
23
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 65
16

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Boron (B), % 0
0.050 to 0.1
Carbon (C), % 0 to 0.080
0.040 to 0.1
Chromium (Cr), % 0
15.5 to 17.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
59.4 to 66.6
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
1.6 to 2.0
Nickel (Ni), % 0
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0.3 to 0.6
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0
Residuals, % 0 to 0.4
0