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Titanium 6-7 vs. EN 1.3955 Stainless Steel

Titanium 6-7 belongs to the titanium alloys classification, while EN 1.3955 stainless steel belongs to the iron 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 titanium 6-7 and the bottom bar is EN 1.3955 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 11
23
Fatigue Strength, MPa 530
150
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 45
77
Tensile Strength: Ultimate (UTS), MPa 1020
520
Tensile Strength: Yield (Proof), MPa 900
220

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Maximum Temperature: Mechanical, °C 300
930
Melting Completion (Liquidus), °C 1700
1430
Melting Onset (Solidus), °C 1650
1380
Specific Heat Capacity, J/kg-K 520
480
Thermal Expansion, µm/m-K 9.3
12

Otherwise Unclassified Properties

Base Metal Price, % relative 75
16
Density, g/cm3 5.1
7.8
Embodied Carbon, kg CO2/kg material 34
3.2
Embodied Energy, MJ/kg 540
45
Embodied Water, L/kg 190
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
95
Resilience: Unit (Modulus of Resilience), kJ/m3 3460
130
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 32
25
Strength to Weight: Axial, points 56
18
Strength to Weight: Bending, points 44
18
Thermal Shock Resistance, points 66
15

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 0
16.5 to 18.5
Hydrogen (H), % 0 to 0.0090
0
Iron (Fe), % 0 to 0.25
65.5 to 73.5
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 6.5 to 7.5
0 to 0.75
Nickel (Ni), % 0
10 to 12
Niobium (Nb), % 6.5 to 7.5
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 84.9 to 88
0