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AISI 301 Stainless Steel vs. R56401 Titanium

AISI 301 stainless steel belongs to the iron alloys classification, while R56401 titanium belongs to the titanium alloys. There are 30 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 AISI 301 stainless steel and the bottom bar is R56401 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 7.4 to 46
9.1
Fatigue Strength, MPa 210 to 600
480
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Shear Strength, MPa 410 to 860
560
Tensile Strength: Ultimate (UTS), MPa 590 to 1460
940
Tensile Strength: Yield (Proof), MPa 230 to 1080
850

Thermal Properties

Latent Heat of Fusion, J/g 280
410
Maximum Temperature: Mechanical, °C 840
340
Melting Completion (Liquidus), °C 1420
1610
Melting Onset (Solidus), °C 1400
1560
Specific Heat Capacity, J/kg-K 480
560
Thermal Conductivity, W/m-K 16
7.1
Thermal Expansion, µm/m-K 17
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
36
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 2.7
38
Embodied Energy, MJ/kg 39
610
Embodied Water, L/kg 130
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 99 to 300
83
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 2970
3440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 21 to 52
59
Strength to Weight: Bending, points 20 to 37
48
Thermal Diffusivity, mm2/s 4.2
2.9
Thermal Shock Resistance, points 12 to 31
67

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0 to 0.15
0 to 0.080
Chromium (Cr), % 16 to 18
0
Hydrogen (H), % 0
0 to 0.012
Iron (Fe), % 70.7 to 78
0 to 0.25
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 6.0 to 8.0
0
Nitrogen (N), % 0 to 0.1
0 to 0.050
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
88.5 to 91
Vanadium (V), % 0
3.5 to 4.5