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Grade 2 Titanium vs. EN 1.4423 Stainless Steel

Grade 2 titanium belongs to the titanium alloys classification, while EN 1.4423 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 1.4423 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 23
17
Fatigue Strength, MPa 250
380
Impact Strength: V-Notched Charpy, J 160
110
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 38
77
Shear Strength, MPa 270
520
Tensile Strength: Ultimate (UTS), MPa 420
850
Tensile Strength: Yield (Proof), MPa 360
630

Thermal Properties

Latent Heat of Fusion, J/g 420
280
Maximum Temperature: Mechanical, °C 320
780
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 22
16
Thermal Expansion, µm/m-K 9.0
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 37
14
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 31
3.2
Embodied Energy, MJ/kg 510
43
Embodied Water, L/kg 110
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
130
Resilience: Unit (Modulus of Resilience), kJ/m3 600
1000
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 26
30
Strength to Weight: Bending, points 28
25
Thermal Diffusivity, mm2/s 8.9
4.3
Thermal Shock Resistance, points 32
31

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.020
Chromium (Cr), % 0
11 to 13
Copper (Cu), % 0
0.2 to 0.8
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
73.8 to 80.5
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
2.3 to 2.8
Nickel (Ni), % 0
6.0 to 7.0
Nitrogen (N), % 0 to 0.030
0 to 0.020
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.0030
Titanium (Ti), % 98.9 to 100
0
Residuals, % 0 to 0.4
0