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Grade 6 Titanium vs. AISI 403 Stainless Steel

Grade 6 titanium belongs to the titanium alloys classification, while AISI 403 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 AISI 403 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 11
16 to 25
Fatigue Strength, MPa 290
200 to 340
Poisson's Ratio 0.32
0.28
Reduction in Area, % 27
47 to 50
Shear Modulus, GPa 39
76
Shear Strength, MPa 530
340 to 480
Tensile Strength: Ultimate (UTS), MPa 890
530 to 780
Tensile Strength: Yield (Proof), MPa 840
280 to 570

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Maximum Temperature: Mechanical, °C 310
740
Melting Completion (Liquidus), °C 1580
1450
Melting Onset (Solidus), °C 1530
1400
Specific Heat Capacity, J/kg-K 550
480
Thermal Conductivity, W/m-K 7.8
28
Thermal Expansion, µm/m-K 9.4
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
6.5
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 30
1.9
Embodied Energy, MJ/kg 480
27
Embodied Water, L/kg 190
99

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
210 to 840
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 55
19 to 28
Strength to Weight: Bending, points 46
19 to 24
Thermal Diffusivity, mm2/s 3.2
7.6
Thermal Shock Resistance, points 65
20 to 29

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 0
11.5 to 13
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
84.7 to 88.5
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
0 to 0.6
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.5
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