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Grade 12 Titanium vs. S21603 Stainless Steel

Grade 12 titanium belongs to the titanium alloys classification, while S21603 stainless steel belongs to the iron alloys. There are 28 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 grade 12 titanium and the bottom bar is S21603 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
200
Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 21
45
Fatigue Strength, MPa 280
360
Poisson's Ratio 0.32
0.28
Reduction in Area, % 28
57
Shear Modulus, GPa 39
79
Shear Strength, MPa 330
490
Tensile Strength: Ultimate (UTS), MPa 530
690
Tensile Strength: Yield (Proof), MPa 410
390

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Maximum Temperature: Mechanical, °C 320
990
Melting Completion (Liquidus), °C 1660
1420
Melting Onset (Solidus), °C 1610
1380
Specific Heat Capacity, J/kg-K 540
480
Thermal Expansion, µm/m-K 9.6
17

Otherwise Unclassified Properties

Base Metal Price, % relative 37
17
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 31
3.6
Embodied Energy, MJ/kg 500
50
Embodied Water, L/kg 110
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
270
Resilience: Unit (Modulus of Resilience), kJ/m3 770
380
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 32
25
Strength to Weight: Bending, points 32
22
Thermal Shock Resistance, points 37
15

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 0
17.5 to 22
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
57.6 to 67.8
Manganese (Mn), % 0
7.5 to 9.0
Molybdenum (Mo), % 0.2 to 0.4
2.0 to 3.0
Nickel (Ni), % 0.6 to 0.9
5.0 to 7.0
Nitrogen (N), % 0 to 0.030
0.25 to 0.5
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 97.6 to 99.2
0
Residuals, % 0 to 0.4
0