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AISI 316N Stainless Steel vs. Grade 25 Titanium

AISI 316N stainless steel belongs to the iron alloys classification, while grade 25 titanium belongs to the titanium 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 AISI 316N stainless steel and the bottom bar is grade 25 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 9.0 to 39
11
Fatigue Strength, MPa 230 to 450
550
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
40
Shear Strength, MPa 420 to 690
600
Tensile Strength: Ultimate (UTS), MPa 620 to 1160
1000
Tensile Strength: Yield (Proof), MPa 270 to 870
940

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 940
340
Melting Completion (Liquidus), °C 1440
1610
Melting Onset (Solidus), °C 1400
1560
Specific Heat Capacity, J/kg-K 470
560
Thermal Conductivity, W/m-K 15
7.1
Thermal Expansion, µm/m-K 16
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.0

Otherwise Unclassified Properties

Density, g/cm3 7.9
4.5
Embodied Carbon, kg CO2/kg material 3.9
43
Embodied Energy, MJ/kg 53
700
Embodied Water, L/kg 150
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 95 to 230
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 1880
4220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 22 to 41
62
Strength to Weight: Bending, points 20 to 31
50
Thermal Diffusivity, mm2/s 4.1
2.8
Thermal Shock Resistance, points 14 to 26
71

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 16 to 18
0
Hydrogen (H), % 0
0 to 0.013
Iron (Fe), % 61.9 to 71.9
0 to 0.4
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 10 to 14
0.3 to 0.8
Nitrogen (N), % 0.1 to 0.16
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
86.7 to 90.6
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4