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Grade 33 Titanium vs. S20910 Stainless Steel

Grade 33 titanium belongs to the titanium alloys classification, while S20910 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade 33 titanium and the bottom bar is S20910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 23
14 to 39
Fatigue Strength, MPa 250
310 to 460
Poisson's Ratio 0.32
0.28
Reduction in Area, % 34
56 to 62
Shear Modulus, GPa 41
79
Shear Strength, MPa 240
500 to 570
Tensile Strength: Ultimate (UTS), MPa 390
780 to 940
Tensile Strength: Yield (Proof), MPa 350
430 to 810

Thermal Properties

Latent Heat of Fusion, J/g 420
300
Maximum Temperature: Mechanical, °C 320
1080
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
13
Thermal Expansion, µm/m-K 8.7
16

Otherwise Unclassified Properties

Base Metal Price, % relative 55
22
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 33
4.8
Embodied Energy, MJ/kg 530
68
Embodied Water, L/kg 200
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
120 to 260
Resilience: Unit (Modulus of Resilience), kJ/m3 590
460 to 1640
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 24
28 to 33
Strength to Weight: Bending, points 26
24 to 27
Thermal Diffusivity, mm2/s 8.7
3.6
Thermal Shock Resistance, points 30
17 to 21

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.060
Chromium (Cr), % 0.1 to 0.2
20.5 to 23.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
52.1 to 62.1
Manganese (Mn), % 0
4.0 to 6.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 0.35 to 0.55
11.5 to 13.5
Niobium (Nb), % 0
0.1 to 0.3
Nitrogen (N), % 0 to 0.030
0.2 to 0.4
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0.010 to 0.020
0
Phosphorus (P), % 0
0 to 0.040
Ruthenium (Ru), % 0.020 to 0.040
0
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98.1 to 99.52
0
Vanadium (V), % 0
0.1 to 0.3
Residuals, % 0 to 0.4
0