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Grade 27 Titanium vs. EN 1.4980 Stainless Steel

Grade 27 titanium belongs to the titanium alloys classification, while EN 1.4980 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 27 titanium and the bottom bar is EN 1.4980 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 27
17
Fatigue Strength, MPa 170
410
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
75
Shear Strength, MPa 180
630
Tensile Strength: Ultimate (UTS), MPa 270
1030
Tensile Strength: Yield (Proof), MPa 230
680

Thermal Properties

Latent Heat of Fusion, J/g 420
300
Maximum Temperature: Mechanical, °C 320
920
Melting Completion (Liquidus), °C 1660
1430
Melting Onset (Solidus), °C 1610
1380
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
13
Thermal Expansion, µm/m-K 8.7
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 37
26
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 33
6.0
Embodied Energy, MJ/kg 530
87
Embodied Water, L/kg 320
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
150
Resilience: Unit (Modulus of Resilience), kJ/m3 240
1180
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 17
36
Strength to Weight: Bending, points 21
28
Thermal Diffusivity, mm2/s 8.8
3.5
Thermal Shock Resistance, points 21
22

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0030 to 0.010
Carbon (C), % 0 to 0.080
0.030 to 0.080
Chromium (Cr), % 0
13.5 to 16
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
49.2 to 58.5
Manganese (Mn), % 0
1.0 to 2.0
Molybdenum (Mo), % 0
1.0 to 1.5
Nickel (Ni), % 0
24 to 27
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.025
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 99 to 99.92
1.9 to 2.3
Vanadium (V), % 0
0.1 to 0.5
Residuals, % 0 to 0.4
0