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EN 1.4945 Stainless Steel vs. Titanium 6-7

EN 1.4945 stainless steel belongs to the iron alloys classification, while titanium 6-7 belongs to the titanium alloys. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is EN 1.4945 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, % 19 to 34
11
Fatigue Strength, MPa 230 to 350
530
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
45
Shear Strength, MPa 430 to 460
610
Tensile Strength: Ultimate (UTS), MPa 640 to 740
1020
Tensile Strength: Yield (Proof), MPa 290 to 550
900

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 920
300
Melting Completion (Liquidus), °C 1490
1700
Melting Onset (Solidus), °C 1440
1650
Specific Heat Capacity, J/kg-K 470
520
Thermal Expansion, µm/m-K 17
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 30
75
Density, g/cm3 8.1
5.1
Embodied Carbon, kg CO2/kg material 5.0
34
Embodied Energy, MJ/kg 73
540
Embodied Water, L/kg 150
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
110
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 760
3460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
32
Strength to Weight: Axial, points 22 to 25
56
Strength to Weight: Bending, points 20 to 22
44
Thermal Shock Resistance, points 14 to 16
66

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0.040 to 0.1
0 to 0.080
Chromium (Cr), % 15.5 to 17.5
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 57.9 to 65.7
0 to 0.25
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 15.5 to 17.5
0
Niobium (Nb), % 0.4 to 1.2
6.5 to 7.5
Nitrogen (N), % 0.060 to 0.14
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.3 to 0.6
0
Sulfur (S), % 0 to 0.015
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
84.9 to 88
Tungsten (W), % 2.5 to 3.5
0