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Grade 6 Titanium vs. AISI 416 Stainless Steel

Grade 6 titanium belongs to the titanium alloys classification, while AISI 416 stainless steel belongs to the iron alloys. There are 30 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 416 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 11
13 to 31
Fatigue Strength, MPa 290
230 to 340
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 39
76
Shear Strength, MPa 530
340 to 480
Tensile Strength: Ultimate (UTS), MPa 890
510 to 800
Tensile Strength: Yield (Proof), MPa 840
290 to 600

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Maximum Temperature: Mechanical, °C 310
680
Melting Completion (Liquidus), °C 1580
1530
Melting Onset (Solidus), °C 1530
1480
Specific Heat Capacity, J/kg-K 550
480
Thermal Conductivity, W/m-K 7.8
30
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
7.0
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 30
1.9
Embodied Energy, MJ/kg 480
27
Embodied Water, L/kg 190
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
98 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
220 to 940
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 55
18 to 29
Strength to Weight: Bending, points 46
18 to 25
Thermal Diffusivity, mm2/s 3.2
8.1
Thermal Shock Resistance, points 65
19 to 30

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 0
12 to 14
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
83.2 to 87.9
Manganese (Mn), % 0
0 to 1.3
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.060
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0.15 to 0.35
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0
Residuals, % 0 to 0.4
0