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EN 1.4509 Stainless Steel vs. Grade C-5 Titanium

EN 1.4509 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 (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4509 stainless steel and the bottom bar is grade C-5 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 180
310
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 21
6.7
Fatigue Strength, MPa 170
510
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 530
1000
Tensile Strength: Yield (Proof), MPa 260
940

Thermal Properties

Latent Heat of Fusion, J/g 280
410
Maximum Temperature: Mechanical, °C 890
340
Melting Completion (Liquidus), °C 1440
1610
Melting Onset (Solidus), °C 1400
1560
Specific Heat Capacity, J/kg-K 480
560
Thermal Conductivity, W/m-K 25
7.1
Thermal Expansion, µm/m-K 10
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
36
Density, g/cm3 7.7
4.4
Embodied Carbon, kg CO2/kg material 2.8
38
Embodied Energy, MJ/kg 41
610
Embodied Water, L/kg 120
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
66
Resilience: Unit (Modulus of Resilience), kJ/m3 180
4200
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 19
63
Strength to Weight: Bending, points 19
50
Thermal Diffusivity, mm2/s 6.8
2.9
Thermal Shock Resistance, points 19
71

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 17.5 to 18.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 77.8 to 82.1
0 to 0.4
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 0
0 to 0.050
Niobium (Nb), % 0.3 to 1.0
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 0.015
0
Titanium (Ti), % 0.1 to 0.6
87.5 to 91
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4