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EN 1.4568 Stainless Steel vs. R56401 Titanium

EN 1.4568 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 (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4568 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, % 2.3 to 21
9.1
Fatigue Strength, MPa 220 to 670
480
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
40
Shear Strength, MPa 520 to 930
560
Tensile Strength: Ultimate (UTS), MPa 830 to 1620
940
Tensile Strength: Yield (Proof), MPa 330 to 1490
850

Thermal Properties

Latent Heat of Fusion, J/g 280
410
Maximum Temperature: Mechanical, °C 890
340
Melting Completion (Liquidus), °C 1420
1610
Melting Onset (Solidus), °C 1380
1560
Specific Heat Capacity, J/kg-K 480
560
Thermal Conductivity, W/m-K 16
7.1
Thermal Expansion, µm/m-K 13
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
36
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 2.8
38
Embodied Energy, MJ/kg 40
610
Embodied Water, L/kg 140
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 140
83
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 5710
3440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 30 to 58
59
Strength to Weight: Bending, points 25 to 40
48
Thermal Diffusivity, mm2/s 4.3
2.9
Thermal Shock Resistance, points 23 to 46
67

Alloy Composition

Aluminum (Al), % 0.7 to 1.5
5.5 to 6.5
Carbon (C), % 0 to 0.090
0 to 0.080
Chromium (Cr), % 16 to 18
0
Hydrogen (H), % 0
0 to 0.012
Iron (Fe), % 70.9 to 76.8
0 to 0.25
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 6.5 to 7.8
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.7
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
88.5 to 91
Vanadium (V), % 0
3.5 to 4.5