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AISI 446 Stainless Steel vs. Grade C-5 Titanium

AISI 446 stainless steel belongs to the iron alloys classification, while grade C-5 titanium belongs to the titanium alloys. There are 30 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 AISI 446 stainless steel and the bottom bar is grade C-5 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
310
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 23
6.7
Fatigue Strength, MPa 200
510
Poisson's Ratio 0.27
0.32
Shear Modulus, GPa 79
40
Tensile Strength: Ultimate (UTS), MPa 570
1000
Tensile Strength: Yield (Proof), MPa 300
940

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 1180
340
Melting Completion (Liquidus), °C 1510
1610
Melting Onset (Solidus), °C 1430
1560
Specific Heat Capacity, J/kg-K 490
560
Thermal Conductivity, W/m-K 17
7.1
Thermal Expansion, µm/m-K 11
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
36
Density, g/cm3 7.7
4.4
Embodied Carbon, kg CO2/kg material 2.4
38
Embodied Energy, MJ/kg 35
610
Embodied Water, L/kg 150
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
66
Resilience: Unit (Modulus of Resilience), kJ/m3 230
4200
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 26
35
Strength to Weight: Axial, points 21
63
Strength to Weight: Bending, points 20
50
Thermal Diffusivity, mm2/s 4.6
2.9
Thermal Shock Resistance, points 19
71

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0 to 0.2
0 to 0.1
Chromium (Cr), % 23 to 27
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 69.2 to 77
0 to 0.4
Manganese (Mn), % 0 to 1.5
0
Nickel (Ni), % 0 to 0.75
0 to 0.050
Nitrogen (N), % 0 to 0.25
0
Oxygen (O), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
87.5 to 91
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4