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EN 1.3975 Stainless Steel vs. Titanium 6-7

EN 1.3975 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 (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.3975 stainless steel and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 27
11
Fatigue Strength, MPa 230
530
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
45
Tensile Strength: Ultimate (UTS), MPa 660
1020
Tensile Strength: Yield (Proof), MPa 320
900

Thermal Properties

Latent Heat of Fusion, J/g 340
410
Maximum Temperature: Mechanical, °C 910
300
Melting Completion (Liquidus), °C 1360
1700
Melting Onset (Solidus), °C 1320
1650
Specific Heat Capacity, J/kg-K 500
520
Thermal Expansion, µm/m-K 16
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 15
75
Density, g/cm3 7.5
5.1
Embodied Carbon, kg CO2/kg material 3.3
34
Embodied Energy, MJ/kg 47
540
Embodied Water, L/kg 150
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
110
Resilience: Unit (Modulus of Resilience), kJ/m3 270
3460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 26
32
Strength to Weight: Axial, points 24
56
Strength to Weight: Bending, points 22
44
Thermal Shock Resistance, points 15
66

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 16 to 18
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 58.2 to 65.4
0 to 0.25
Manganese (Mn), % 7.0 to 9.0
0
Molybdenum (Mo), % 0 to 1.0
6.5 to 7.5
Nickel (Ni), % 8.0 to 9.0
0
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0.080 to 0.18
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 3.5 to 4.5
0
Sulfur (S), % 0 to 0.030
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
84.9 to 88