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S41425 Stainless Steel vs. Titanium 6-7

S41425 stainless steel belongs to the iron alloys classification, while titanium 6-7 belongs to the titanium alloys. There are 27 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 S41425 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, % 17
11
Fatigue Strength, MPa 450
530
Poisson's Ratio 0.28
0.33
Reduction in Area, % 51
29
Shear Modulus, GPa 77
45
Shear Strength, MPa 570
610
Tensile Strength: Ultimate (UTS), MPa 920
1020
Tensile Strength: Yield (Proof), MPa 750
900

Thermal Properties

Latent Heat of Fusion, J/g 280
410
Maximum Temperature: Mechanical, °C 810
300
Melting Completion (Liquidus), °C 1450
1700
Melting Onset (Solidus), °C 1410
1650
Specific Heat Capacity, J/kg-K 470
520
Thermal Expansion, µm/m-K 10
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
75
Density, g/cm3 7.9
5.1
Embodied Carbon, kg CO2/kg material 2.9
34
Embodied Energy, MJ/kg 40
540
Embodied Water, L/kg 120
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1420
3460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
32
Strength to Weight: Axial, points 33
56
Strength to Weight: Bending, points 27
44
Thermal Shock Resistance, points 33
66

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 12 to 15
0
Copper (Cu), % 0 to 0.3
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 74 to 81.9
0 to 0.25
Manganese (Mn), % 0.5 to 1.0
0
Molybdenum (Mo), % 1.5 to 2.0
6.5 to 7.5
Nickel (Ni), % 4.0 to 7.0
0
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0.060 to 0.12
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.0050
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
84.9 to 88