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N08800 Stainless Steel vs. R56401 Titanium

N08800 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 (4, in this case) are not shown.

For each property being compared, the top bar is N08800 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, % 4.5 to 34
9.1
Fatigue Strength, MPa 150 to 390
480
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Shear Strength, MPa 340 to 580
560
Tensile Strength: Ultimate (UTS), MPa 500 to 1000
940
Tensile Strength: Yield (Proof), MPa 190 to 830
850

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1100
340
Melting Completion (Liquidus), °C 1390
1610
Melting Onset (Solidus), °C 1360
1560
Specific Heat Capacity, J/kg-K 480
560
Thermal Conductivity, W/m-K 12
7.1
Thermal Expansion, µm/m-K 14
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 30
36
Density, g/cm3 8.0
4.5
Embodied Carbon, kg CO2/kg material 5.3
38
Embodied Energy, MJ/kg 76
610
Embodied Water, L/kg 200
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 42 to 160
83
Resilience: Unit (Modulus of Resilience), kJ/m3 96 to 1740
3440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 18 to 35
59
Strength to Weight: Bending, points 18 to 28
48
Thermal Diffusivity, mm2/s 3.0
2.9
Thermal Shock Resistance, points 13 to 25
67

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
5.5 to 6.5
Carbon (C), % 0 to 0.1
0 to 0.080
Chromium (Cr), % 19 to 23
0
Copper (Cu), % 0 to 0.75
0
Hydrogen (H), % 0
0 to 0.012
Iron (Fe), % 39.5 to 50.7
0 to 0.25
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 30 to 35
0
Nitrogen (N), % 0
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 0.015
0
Titanium (Ti), % 0.15 to 0.6
88.5 to 91
Vanadium (V), % 0
3.5 to 4.5