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Grade 27 Titanium vs. EN 1.4310 Stainless Steel

Grade 27 titanium belongs to the titanium alloys classification, while EN 1.4310 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 1.4310 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 27
14 to 45
Fatigue Strength, MPa 170
240 to 330
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
77
Shear Strength, MPa 180
510 to 550
Tensile Strength: Ultimate (UTS), MPa 270
730 to 900
Tensile Strength: Yield (Proof), MPa 230
260 to 570

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Maximum Temperature: Mechanical, °C 320
910
Melting Completion (Liquidus), °C 1660
1420
Melting Onset (Solidus), °C 1610
1380
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 8.7
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 37
14
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 33
2.9
Embodied Energy, MJ/kg 530
42
Embodied Water, L/kg 320
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
110 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 240
170 to 830
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 17
26 to 32
Strength to Weight: Bending, points 21
23 to 27
Thermal Diffusivity, mm2/s 8.8
4.0
Thermal Shock Resistance, points 21
15 to 18

Alloy Composition

Carbon (C), % 0 to 0.080
0.050 to 0.15
Chromium (Cr), % 0
16 to 19
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
66.4 to 78
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.8
Nickel (Ni), % 0
6.0 to 9.5
Nitrogen (N), % 0 to 0.030
0 to 0.1
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.045
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0 to 2.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 99 to 99.92
0
Residuals, % 0 to 0.4
0