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N08028 Stainless Steel vs. Grade 38 Titanium

N08028 stainless steel belongs to the iron alloys classification, while grade 38 titanium belongs to the titanium 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 N08028 stainless steel and the bottom bar is grade 38 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 45
11
Fatigue Strength, MPa 220
530
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 80
40
Shear Strength, MPa 400
600
Tensile Strength: Ultimate (UTS), MPa 570
1000
Tensile Strength: Yield (Proof), MPa 240
910

Thermal Properties

Latent Heat of Fusion, J/g 320
410
Maximum Temperature: Mechanical, °C 1100
330
Melting Completion (Liquidus), °C 1420
1620
Melting Onset (Solidus), °C 1370
1570
Specific Heat Capacity, J/kg-K 470
550
Thermal Conductivity, W/m-K 12
8.0
Thermal Expansion, µm/m-K 16
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 37
36
Density, g/cm3 8.1
4.5
Embodied Carbon, kg CO2/kg material 6.4
35
Embodied Energy, MJ/kg 89
560
Embodied Water, L/kg 240
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
3840
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 19
62
Strength to Weight: Bending, points 19
49
Thermal Diffusivity, mm2/s 3.2
3.2
Thermal Shock Resistance, points 12
72

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.5
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 26 to 28
0
Copper (Cu), % 0.6 to 1.4
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 29 to 40.4
1.2 to 1.8
Manganese (Mn), % 0 to 2.5
0
Molybdenum (Mo), % 3.0 to 4.0
0
Nickel (Ni), % 30 to 34
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
89.9 to 93.1
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4