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Grade 1 Titanium vs. S64512 Stainless Steel

Grade 1 titanium belongs to the titanium alloys classification, while S64512 stainless steel belongs to the iron alloys. There are 32 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 1 titanium and the bottom bar is S64512 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
330
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 28
17
Fatigue Strength, MPa 170
540
Poisson's Ratio 0.32
0.28
Reduction in Area, % 36
34
Shear Modulus, GPa 39
76
Shear Strength, MPa 200
700
Tensile Strength: Ultimate (UTS), MPa 310
1140
Tensile Strength: Yield (Proof), MPa 220
890

Thermal Properties

Latent Heat of Fusion, J/g 420
270
Maximum Temperature: Mechanical, °C 320
750
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 20
28
Thermal Expansion, µm/m-K 8.8
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
4.1

Otherwise Unclassified Properties

Base Metal Price, % relative 37
10
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 31
3.3
Embodied Energy, MJ/kg 510
47
Embodied Water, L/kg 110
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
180
Resilience: Unit (Modulus of Resilience), kJ/m3 230
2020
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 19
40
Strength to Weight: Bending, points 23
31
Thermal Diffusivity, mm2/s 8.2
7.5
Thermal Shock Resistance, points 24
42

Alloy Composition

Carbon (C), % 0 to 0.080
0.080 to 0.15
Chromium (Cr), % 0
11 to 12.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
80.6 to 84.7
Manganese (Mn), % 0
0.5 to 0.9
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0
2.0 to 3.0
Nitrogen (N), % 0 to 0.030
0.010 to 0.050
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.35
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 99.095 to 100
0
Vanadium (V), % 0
0.25 to 0.4
Residuals, % 0 to 0.4
0