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Grade C-6 Titanium vs. S32750 Stainless Steel

Grade C-6 titanium belongs to the titanium alloys classification, while S32750 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade C-6 titanium and the bottom bar is S32750 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 290
270
Elastic (Young's, Tensile) Modulus, GPa 100
210
Elongation at Break, % 9.0
17
Fatigue Strength, MPa 460
360
Poisson's Ratio 0.32
0.27
Rockwell C Hardness 32
28
Shear Modulus, GPa 39
81
Tensile Strength: Ultimate (UTS), MPa 890
860
Tensile Strength: Yield (Proof), MPa 830
590

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 310
1100
Melting Completion (Liquidus), °C 1580
1450
Melting Onset (Solidus), °C 1530
1400
Specific Heat Capacity, J/kg-K 550
480
Thermal Conductivity, W/m-K 7.8
15
Thermal Expansion, µm/m-K 9.8
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 36
21
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 30
4.1
Embodied Energy, MJ/kg 480
56
Embodied Water, L/kg 190
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
130
Resilience: Unit (Modulus of Resilience), kJ/m3 3300
860
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 55
31
Strength to Weight: Bending, points 46
26
Thermal Diffusivity, mm2/s 3.2
4.0
Thermal Shock Resistance, points 63
25

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0
0 to 0.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
58.1 to 66.8
Manganese (Mn), % 0
0 to 1.2
Molybdenum (Mo), % 0
3.0 to 5.0
Nickel (Ni), % 0 to 0.050
6.0 to 8.0
Nitrogen (N), % 0
0.24 to 0.32
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.7 to 94
0
Residuals, % 0 to 0.4
0