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EN 1.4109 Stainless Steel vs. Grade 11 Titanium

EN 1.4109 stainless steel belongs to the iron alloys classification, while grade 11 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 EN 1.4109 stainless steel and the bottom bar is grade 11 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 250
120
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 19
29
Fatigue Strength, MPa 270
170
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 76
38
Shear Strength, MPa 480
200
Tensile Strength: Ultimate (UTS), MPa 770
310
Tensile Strength: Yield (Proof), MPa 420
230

Thermal Properties

Latent Heat of Fusion, J/g 280
420
Maximum Temperature: Mechanical, °C 820
320
Melting Completion (Liquidus), °C 1440
1660
Melting Onset (Solidus), °C 1400
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 30
22
Thermal Expansion, µm/m-K 10
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 3.1
7.3

Otherwise Unclassified Properties

Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 2.2
47
Embodied Energy, MJ/kg 30
800
Embodied Water, L/kg 110
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
81
Resilience: Unit (Modulus of Resilience), kJ/m3 460
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 28
19
Strength to Weight: Bending, points 24
22
Thermal Diffusivity, mm2/s 8.1
8.9
Thermal Shock Resistance, points 28
22

Alloy Composition

Carbon (C), % 0.6 to 0.75
0 to 0.080
Chromium (Cr), % 14 to 16
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 80.7 to 85
0 to 0.2
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0.4 to 0.8
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Palladium (Pd), % 0
0.12 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 0.7
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0
98.8 to 99.88
Residuals, % 0
0 to 0.4