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R56406 Titanium vs. AISI 440C Stainless Steel

R56406 titanium belongs to the titanium alloys classification, while AISI 440C stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is R56406 titanium and the bottom bar is AISI 440C stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 9.1
2.0 to 14
Fatigue Strength, MPa 480
260 to 840
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
76
Tensile Strength: Ultimate (UTS), MPa 980
710 to 1970
Tensile Strength: Yield (Proof), MPa 850
450 to 1900

Thermal Properties

Latent Heat of Fusion, J/g 410
280
Maximum Temperature: Mechanical, °C 340
870
Melting Completion (Liquidus), °C 1610
1480
Melting Onset (Solidus), °C 1560
1370
Specific Heat Capacity, J/kg-K 560
480
Thermal Conductivity, W/m-K 7.1
22
Thermal Expansion, µm/m-K 9.6
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 36
9.0
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 38
2.2
Embodied Energy, MJ/kg 610
31
Embodied Water, L/kg 200
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 85
39 to 88
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 61
26 to 71
Strength to Weight: Bending, points 49
23 to 46
Thermal Diffusivity, mm2/s 2.8
6.0
Thermal Shock Resistance, points 69
26 to 71

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.1
1.0 to 1.2
Chromium (Cr), % 0
16 to 18
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
78 to 83.1
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.75
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 88.1 to 91
0
Vanadium (V), % 3.5 to 4.5
0