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Grade 37 Titanium vs. S28200 Stainless Steel

Grade 37 titanium belongs to the titanium alloys classification, while S28200 stainless steel belongs to the iron alloys. There are 27 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 37 titanium and the bottom bar is S28200 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 22
45
Fatigue Strength, MPa 170
430
Poisson's Ratio 0.32
0.28
Reduction in Area, % 34
57
Shear Modulus, GPa 40
77
Shear Strength, MPa 240
610
Tensile Strength: Ultimate (UTS), MPa 390
870
Tensile Strength: Yield (Proof), MPa 250
460

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Maximum Temperature: Mechanical, °C 310
900
Melting Completion (Liquidus), °C 1650
1380
Melting Onset (Solidus), °C 1600
1330
Specific Heat Capacity, J/kg-K 550
480
Thermal Expansion, µm/m-K 8.9
18

Otherwise Unclassified Properties

Base Metal Price, % relative 36
12
Density, g/cm3 4.5
7.6
Embodied Carbon, kg CO2/kg material 31
2.8
Embodied Energy, MJ/kg 500
41
Embodied Water, L/kg 120
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76
330
Resilience: Unit (Modulus of Resilience), kJ/m3 280
540
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
26
Strength to Weight: Axial, points 24
32
Strength to Weight: Bending, points 26
27
Thermal Shock Resistance, points 29
17

Alloy Composition

Aluminum (Al), % 1.0 to 2.0
0
Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0
0.75 to 1.3
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
57.7 to 64.1
Manganese (Mn), % 0
17 to 19
Molybdenum (Mo), % 0
0.75 to 1.3
Nitrogen (N), % 0 to 0.030
0.4 to 0.6
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 96.9 to 99
0
Residuals, % 0 to 0.4
0