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Grade 11 Titanium vs. EN 1.4821 Stainless Steel

Grade 11 titanium belongs to the titanium alloys classification, while EN 1.4821 stainless steel belongs to the iron 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 grade 11 titanium and the bottom bar is EN 1.4821 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
200
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 29
18
Fatigue Strength, MPa 170
280
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 38
79
Shear Strength, MPa 200
450
Tensile Strength: Ultimate (UTS), MPa 310
730
Tensile Strength: Yield (Proof), MPa 230
450

Thermal Properties

Latent Heat of Fusion, J/g 420
310
Maximum Temperature: Mechanical, °C 320
1100
Melting Completion (Liquidus), °C 1660
1410
Melting Onset (Solidus), °C 1610
1370
Specific Heat Capacity, J/kg-K 540
490
Thermal Conductivity, W/m-K 22
17
Thermal Expansion, µm/m-K 9.2
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
2.3

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.6
Embodied Carbon, kg CO2/kg material 47
2.9
Embodied Energy, MJ/kg 800
41
Embodied Water, L/kg 470
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
110
Resilience: Unit (Modulus of Resilience), kJ/m3 240
500
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
26
Strength to Weight: Axial, points 19
26
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 8.9
4.6
Thermal Shock Resistance, points 22
21

Alloy Composition

Carbon (C), % 0 to 0.080
0.1 to 0.2
Chromium (Cr), % 0
24.5 to 26.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
64.2 to 71.1
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0
3.5 to 5.5
Nitrogen (N), % 0 to 0.030
0 to 0.1
Oxygen (O), % 0 to 0.18
0
Palladium (Pd), % 0.12 to 0.25
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.8 to 1.5
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 98.8 to 99.88
0
Residuals, % 0 to 0.4
0