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Grade 6 Titanium vs. S42300 Stainless Steel

Grade 6 titanium belongs to the titanium alloys classification, while S42300 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade 6 titanium and the bottom bar is S42300 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 11
9.1
Fatigue Strength, MPa 290
440
Poisson's Ratio 0.32
0.28
Reduction in Area, % 27
22
Shear Modulus, GPa 39
77
Shear Strength, MPa 530
650
Tensile Strength: Ultimate (UTS), MPa 890
1100
Tensile Strength: Yield (Proof), MPa 840
850

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Maximum Temperature: Mechanical, °C 310
750
Melting Completion (Liquidus), °C 1580
1470
Melting Onset (Solidus), °C 1530
1420
Specific Heat Capacity, J/kg-K 550
470
Thermal Conductivity, W/m-K 7.8
25
Thermal Expansion, µm/m-K 9.4
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
4.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
5.2

Otherwise Unclassified Properties

Base Metal Price, % relative 36
9.5
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 30
3.2
Embodied Energy, MJ/kg 480
44
Embodied Water, L/kg 190
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
93
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
1840
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 55
39
Strength to Weight: Bending, points 46
30
Thermal Diffusivity, mm2/s 3.2
6.8
Thermal Shock Resistance, points 65
40

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.080
0.27 to 0.32
Chromium (Cr), % 0
11 to 12
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
82 to 85.1
Manganese (Mn), % 0
1.0 to 1.4
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0
0 to 0.5
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0
Vanadium (V), % 0
0.2 to 0.3
Residuals, % 0 to 0.4
0