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EN 1.4736 Stainless Steel vs. Titanium 6-7

EN 1.4736 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 1.4736 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, % 28
11
Fatigue Strength, MPa 230
530
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
45
Shear Strength, MPa 370
610
Tensile Strength: Ultimate (UTS), MPa 580
1020
Tensile Strength: Yield (Proof), MPa 310
900

Thermal Properties

Latent Heat of Fusion, J/g 290
410
Maximum Temperature: Mechanical, °C 1000
300
Melting Completion (Liquidus), °C 1420
1700
Melting Onset (Solidus), °C 1380
1650
Specific Heat Capacity, J/kg-K 490
520
Thermal Expansion, µm/m-K 10
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
75
Density, g/cm3 7.6
5.1
Embodied Carbon, kg CO2/kg material 2.4
34
Embodied Energy, MJ/kg 35
540
Embodied Water, L/kg 140
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
110
Resilience: Unit (Modulus of Resilience), kJ/m3 250
3460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
32
Strength to Weight: Axial, points 21
56
Strength to Weight: Bending, points 20
44
Thermal Shock Resistance, points 21
66

Alloy Composition

Aluminum (Al), % 1.7 to 2.1
5.5 to 6.5
Carbon (C), % 0 to 0.040
0 to 0.080
Chromium (Cr), % 17 to 18
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 77 to 81.1
0 to 0.25
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 0
6.5 to 7.5
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 1.0
0
Sulfur (S), % 0 to 0.015
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0.2 to 0.8
84.9 to 88