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R56401 Titanium vs. S41425 Stainless Steel

R56401 titanium belongs to the titanium alloys classification, while S41425 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is R56401 titanium and the bottom bar is S41425 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 9.1
17
Fatigue Strength, MPa 480
450
Poisson's Ratio 0.32
0.28
Reduction in Area, % 17
51
Shear Modulus, GPa 40
77
Shear Strength, MPa 560
570
Tensile Strength: Ultimate (UTS), MPa 940
920
Tensile Strength: Yield (Proof), MPa 850
750

Thermal Properties

Latent Heat of Fusion, J/g 410
280
Maximum Temperature: Mechanical, °C 340
810
Melting Completion (Liquidus), °C 1610
1450
Melting Onset (Solidus), °C 1560
1410
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.1
16
Thermal Expansion, µm/m-K 9.6
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 36
13
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 38
2.9
Embodied Energy, MJ/kg 610
40
Embodied Water, L/kg 200
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
150
Resilience: Unit (Modulus of Resilience), kJ/m3 3440
1420
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 59
33
Strength to Weight: Bending, points 48
27
Thermal Diffusivity, mm2/s 2.9
4.4
Thermal Shock Resistance, points 67
33

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0 to 0.050
Chromium (Cr), % 0
12 to 15
Copper (Cu), % 0
0 to 0.3
Hydrogen (H), % 0 to 0.012
0
Iron (Fe), % 0 to 0.25
74 to 81.9
Manganese (Mn), % 0
0.5 to 1.0
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0
4.0 to 7.0
Nitrogen (N), % 0 to 0.050
0.060 to 0.12
Oxygen (O), % 0 to 0.13
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 88.5 to 91
0
Vanadium (V), % 3.5 to 4.5
0