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S33425 Stainless Steel vs. Titanium 6-7

S33425 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 S33425 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, % 45
11
Fatigue Strength, MPa 210
530
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 79
45
Shear Strength, MPa 400
610
Tensile Strength: Ultimate (UTS), MPa 580
1020
Tensile Strength: Yield (Proof), MPa 230
900

Thermal Properties

Latent Heat of Fusion, J/g 300
410
Maximum Temperature: Mechanical, °C 1100
300
Melting Completion (Liquidus), °C 1430
1700
Melting Onset (Solidus), °C 1380
1650
Specific Heat Capacity, J/kg-K 470
520
Thermal Expansion, µm/m-K 16
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 27
75
Density, g/cm3 7.9
5.1
Embodied Carbon, kg CO2/kg material 5.1
34
Embodied Energy, MJ/kg 71
540
Embodied Water, L/kg 190
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
3460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
32
Strength to Weight: Axial, points 20
56
Strength to Weight: Bending, points 19
44
Thermal Shock Resistance, points 13
66

Alloy Composition

Aluminum (Al), % 0.15 to 0.6
5.5 to 6.5
Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 21 to 23
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 47.2 to 56.7
0 to 0.25
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 2.0 to 3.0
6.5 to 7.5
Nickel (Ni), % 20 to 23
0
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 0.045
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.020
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0.15 to 0.6
84.9 to 88