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Grade 2 Titanium vs. EN 1.4886 Stainless Steel

Grade 2 titanium belongs to the titanium alloys classification, while EN 1.4886 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 2 titanium and the bottom bar is EN 1.4886 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
170
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 23
45
Fatigue Strength, MPa 250
280
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 38
76
Shear Strength, MPa 270
400
Tensile Strength: Ultimate (UTS), MPa 420
580
Tensile Strength: Yield (Proof), MPa 360
300

Thermal Properties

Latent Heat of Fusion, J/g 420
320
Maximum Temperature: Mechanical, °C 320
1100
Melting Completion (Liquidus), °C 1660
1390
Melting Onset (Solidus), °C 1610
1340
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 22
12
Thermal Expansion, µm/m-K 9.0
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 37
31
Density, g/cm3 4.5
8.0
Embodied Carbon, kg CO2/kg material 31
5.4
Embodied Energy, MJ/kg 510
76
Embodied Water, L/kg 110
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
220
Resilience: Unit (Modulus of Resilience), kJ/m3 600
230
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 26
20
Strength to Weight: Bending, points 28
19
Thermal Diffusivity, mm2/s 8.9
3.1
Thermal Shock Resistance, points 32
14

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 0
17 to 20
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
38.7 to 49
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0
33 to 37
Nitrogen (N), % 0 to 0.030
0 to 0.1
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
1.0 to 2.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 98.9 to 100
0
Residuals, % 0 to 0.4
0