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Titanium 6-7 vs. EN 1.4521 Stainless Steel

Titanium 6-7 belongs to the titanium alloys classification, while EN 1.4521 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is titanium 6-7 and the bottom bar is EN 1.4521 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
230
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 45
78
Shear Strength, MPa 610
330
Tensile Strength: Ultimate (UTS), MPa 1020
520
Tensile Strength: Yield (Proof), MPa 900
340

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Maximum Temperature: Mechanical, °C 300
930
Melting Completion (Liquidus), °C 1700
1460
Melting Onset (Solidus), °C 1650
1410
Specific Heat Capacity, J/kg-K 520
480
Thermal Expansion, µm/m-K 9.3
10

Otherwise Unclassified Properties

Base Metal Price, % relative 75
12
Density, g/cm3 5.1
7.7
Embodied Carbon, kg CO2/kg material 34
2.8
Embodied Energy, MJ/kg 540
39
Embodied Water, L/kg 190
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
100
Resilience: Unit (Modulus of Resilience), kJ/m3 3460
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 32
25
Strength to Weight: Axial, points 56
19
Strength to Weight: Bending, points 44
19
Thermal Shock Resistance, points 66
18

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0 to 0.025
Chromium (Cr), % 0
17 to 20
Hydrogen (H), % 0 to 0.0090
0
Iron (Fe), % 0 to 0.25
74.6 to 81.1
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 6.5 to 7.5
1.8 to 2.5
Niobium (Nb), % 6.5 to 7.5
0
Nitrogen (N), % 0 to 0.050
0 to 0.030
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 84.9 to 88
0.15 to 0.8