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Grade 4 Titanium vs. AISI 316N Stainless Steel

Grade 4 titanium belongs to the titanium alloys classification, while AISI 316N stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade 4 titanium and the bottom bar is AISI 316N stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
190 to 350
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 17
9.0 to 39
Fatigue Strength, MPa 340
230 to 450
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
78
Shear Strength, MPa 390
420 to 690
Tensile Strength: Ultimate (UTS), MPa 640
620 to 1160
Tensile Strength: Yield (Proof), MPa 530
270 to 870

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Maximum Temperature: Mechanical, °C 320
940
Melting Completion (Liquidus), °C 1660
1440
Melting Onset (Solidus), °C 1610
1400
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 19
15
Thermal Expansion, µm/m-K 9.4
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 6.3
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 37
19
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 31
3.9
Embodied Energy, MJ/kg 500
53
Embodied Water, L/kg 110
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
95 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 1330
180 to 1880
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 40
22 to 41
Strength to Weight: Bending, points 37
20 to 31
Thermal Diffusivity, mm2/s 7.6
4.1
Thermal Shock Resistance, points 46
14 to 26

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 0
16 to 18
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
61.9 to 71.9
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
10 to 14
Nitrogen (N), % 0 to 0.050
0.1 to 0.16
Oxygen (O), % 0 to 0.4
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98.6 to 100
0
Residuals, % 0 to 0.4
0