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Grade 6 Titanium vs. EN 1.4818 Stainless Steel

Grade 6 titanium belongs to the titanium alloys classification, while EN 1.4818 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 EN 1.4818 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 11
40
Fatigue Strength, MPa 290
280
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 39
77
Shear Strength, MPa 530
480
Tensile Strength: Ultimate (UTS), MPa 890
700
Tensile Strength: Yield (Proof), MPa 840
330

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 310
1050
Melting Completion (Liquidus), °C 1580
1410
Melting Onset (Solidus), °C 1530
1370
Specific Heat Capacity, J/kg-K 550
490
Thermal Conductivity, W/m-K 7.8
17
Thermal Expansion, µm/m-K 9.4
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 36
16
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 30
3.1
Embodied Energy, MJ/kg 480
44
Embodied Water, L/kg 190
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
230
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 55
25
Strength to Weight: Bending, points 46
23
Thermal Diffusivity, mm2/s 3.2
4.5
Thermal Shock Resistance, points 65
15

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.080
0.040 to 0.080
Cerium (Ce), % 0
0.030 to 0.080
Chromium (Cr), % 0
18 to 20
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
65.6 to 71.8
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
9.0 to 11
Nitrogen (N), % 0 to 0.030
0.12 to 0.2
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
1.0 to 2.0
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