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Grade 27 Titanium vs. EN 1.4612 Stainless Steel

Grade 27 titanium belongs to the titanium alloys classification, while EN 1.4612 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade 27 titanium and the bottom bar is EN 1.4612 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 27
11
Fatigue Strength, MPa 170
860 to 950
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
76
Shear Strength, MPa 180
1010 to 1110
Tensile Strength: Ultimate (UTS), MPa 270
1690 to 1850
Tensile Strength: Yield (Proof), MPa 230
1570 to 1730

Thermal Properties

Latent Heat of Fusion, J/g 420
280
Maximum Temperature: Mechanical, °C 320
790
Melting Completion (Liquidus), °C 1660
1450
Melting Onset (Solidus), °C 1610
1400
Specific Heat Capacity, J/kg-K 540
480
Thermal Expansion, µm/m-K 8.7
11

Otherwise Unclassified Properties

Base Metal Price, % relative 37
16
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 33
3.6
Embodied Energy, MJ/kg 530
50
Embodied Water, L/kg 320
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
190 to 210
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 17
60 to 65
Strength to Weight: Bending, points 21
40 to 43
Thermal Shock Resistance, points 21
58 to 63

Alloy Composition

Aluminum (Al), % 0
1.4 to 1.8
Carbon (C), % 0 to 0.080
0 to 0.015
Chromium (Cr), % 0
11 to 12.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
71.5 to 75.5
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0
1.8 to 2.3
Nickel (Ni), % 0
10.2 to 11.3
Nitrogen (N), % 0 to 0.030
0 to 0.010
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.010
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0
0 to 0.0050
Titanium (Ti), % 99 to 99.92
0.2 to 0.5
Residuals, % 0 to 0.4
0