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Grade 2 Titanium vs. EN 1.4905 Stainless Steel

Grade 2 titanium belongs to the titanium alloys classification, while EN 1.4905 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 1.4905 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
19
Fatigue Strength, MPa 250
330
Impact Strength: V-Notched Charpy, J 160
38
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 38
76
Shear Strength, MPa 270
460
Tensile Strength: Ultimate (UTS), MPa 420
740
Tensile Strength: Yield (Proof), MPa 360
510

Thermal Properties

Latent Heat of Fusion, J/g 420
270
Maximum Temperature: Mechanical, °C 320
660
Melting Completion (Liquidus), °C 1660
1480
Melting Onset (Solidus), °C 1610
1440
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 22
26
Thermal Expansion, µm/m-K 9.0
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
4.2

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.5
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 31
2.8
Embodied Energy, MJ/kg 510
40
Embodied Water, L/kg 110
90

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
130
Resilience: Unit (Modulus of Resilience), kJ/m3 600
680
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 26
26
Strength to Weight: Bending, points 28
23
Thermal Diffusivity, mm2/s 8.9
7.0
Thermal Shock Resistance, points 32
25

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Boron (B), % 0
0.00050 to 0.0050
Carbon (C), % 0 to 0.080
0.090 to 0.13
Chromium (Cr), % 0
8.5 to 9.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
86.2 to 88.8
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0.1 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0 to 0.030
0.050 to 0.090
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0.1 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 98.9 to 100
0
Tungsten (W), % 0
0.9 to 1.1
Vanadium (V), % 0
0.18 to 0.25
Residuals, % 0 to 0.4
0