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S32003 Stainless Steel vs. Grade 33 Titanium

S32003 stainless steel belongs to the iron alloys classification, while grade 33 titanium belongs to the titanium alloys. There are 30 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 S32003 stainless steel and the bottom bar is grade 33 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 28
23
Fatigue Strength, MPa 370
250
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 79
41
Shear Strength, MPa 480
240
Tensile Strength: Ultimate (UTS), MPa 730
390
Tensile Strength: Yield (Proof), MPa 510
350

Thermal Properties

Latent Heat of Fusion, J/g 290
420
Maximum Temperature: Mechanical, °C 1010
320
Melting Completion (Liquidus), °C 1440
1660
Melting Onset (Solidus), °C 1400
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 13
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 14
55
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 3.0
33
Embodied Energy, MJ/kg 42
530
Embodied Water, L/kg 150
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 180
86
Resilience: Unit (Modulus of Resilience), kJ/m3 660
590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 26
24
Strength to Weight: Bending, points 23
26
Thermal Diffusivity, mm2/s 4.0
8.7
Thermal Shock Resistance, points 21
30

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 19.5 to 22.5
0.1 to 0.2
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 68.2 to 75.9
0 to 0.3
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 1.5 to 2.0
0
Nickel (Ni), % 3.0 to 4.0
0.35 to 0.55
Nitrogen (N), % 0.14 to 0.2
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Palladium (Pd), % 0
0.010 to 0.020
Phosphorus (P), % 0 to 0.030
0
Ruthenium (Ru), % 0
0.020 to 0.040
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
98.1 to 99.52
Residuals, % 0
0 to 0.4