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EN 1.4518 Stainless Steel vs. Titanium 6-7

EN 1.4518 stainless steel belongs to the iron alloys classification, while titanium 6-7 belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is EN 1.4518 stainless steel and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 34
11
Fatigue Strength, MPa 160
530
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
45
Tensile Strength: Ultimate (UTS), MPa 490
1020
Tensile Strength: Yield (Proof), MPa 210
900

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1000
300
Melting Completion (Liquidus), °C 1450
1700
Melting Onset (Solidus), °C 1400
1650
Specific Heat Capacity, J/kg-K 470
520
Thermal Expansion, µm/m-K 12
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
75
Density, g/cm3 7.9
5.1
Embodied Carbon, kg CO2/kg material 4.0
34
Embodied Energy, MJ/kg 55
540
Embodied Water, L/kg 160
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
110
Resilience: Unit (Modulus of Resilience), kJ/m3 100
3460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
32
Strength to Weight: Axial, points 17
56
Strength to Weight: Bending, points 18
44
Thermal Shock Resistance, points 14
66

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 18 to 20
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 61.4 to 70
0 to 0.25
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 3.0 to 3.5
6.5 to 7.5
Nickel (Ni), % 9.0 to 12
0
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.030
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
84.9 to 88