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Grade 6 Titanium vs. EN 1.4646 Stainless Steel

Grade 6 titanium belongs to the titanium alloys classification, while EN 1.4646 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade 6 titanium and the bottom bar is EN 1.4646 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 11
34
Fatigue Strength, MPa 290
340
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 39
77
Shear Strength, MPa 530
500
Tensile Strength: Ultimate (UTS), MPa 890
750
Tensile Strength: Yield (Proof), MPa 840
430

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Maximum Temperature: Mechanical, °C 310
910
Melting Completion (Liquidus), °C 1580
1390
Melting Onset (Solidus), °C 1530
1340
Specific Heat Capacity, J/kg-K 550
480
Thermal Expansion, µm/m-K 9.4
17

Otherwise Unclassified Properties

Base Metal Price, % relative 36
13
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 30
2.8
Embodied Energy, MJ/kg 480
41
Embodied Water, L/kg 190
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
220
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
460
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 55
27
Strength to Weight: Bending, points 46
24
Thermal Shock Resistance, points 65
16

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.080
0.020 to 0.1
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0
1.5 to 3.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
59 to 67.3
Manganese (Mn), % 0
10.5 to 12.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
3.5 to 4.5
Nitrogen (N), % 0 to 0.030
0.2 to 0.3
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0
Residuals, % 0 to 0.4
0