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Grade 2 Titanium vs. S32615 Stainless Steel

Grade 2 titanium belongs to the titanium alloys classification, while S32615 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade 2 titanium and the bottom bar is S32615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
170
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
28
Fatigue Strength, MPa 250
180
Poisson's Ratio 0.32
0.28
Reduction in Area, % 37
46
Shear Modulus, GPa 38
75
Shear Strength, MPa 270
400
Tensile Strength: Ultimate (UTS), MPa 420
620
Tensile Strength: Yield (Proof), MPa 360
250

Thermal Properties

Latent Heat of Fusion, J/g 420
370
Maximum Temperature: Mechanical, °C 320
990
Melting Completion (Liquidus), °C 1660
1350
Melting Onset (Solidus), °C 1610
1310
Specific Heat Capacity, J/kg-K 540
500
Thermal Expansion, µm/m-K 9.0
15

Otherwise Unclassified Properties

Base Metal Price, % relative 37
24
Density, g/cm3 4.5
7.6
Embodied Carbon, kg CO2/kg material 31
4.4
Embodied Energy, MJ/kg 510
63
Embodied Water, L/kg 110
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
140
Resilience: Unit (Modulus of Resilience), kJ/m3 600
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 26
23
Strength to Weight: Bending, points 28
21
Thermal Shock Resistance, points 32
15

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.070
Chromium (Cr), % 0
16.5 to 19.5
Copper (Cu), % 0
1.5 to 2.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
46.4 to 57.9
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0.3 to 1.5
Nickel (Ni), % 0
19 to 22
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
4.8 to 6.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98.9 to 100
0
Residuals, % 0 to 0.4
0