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Grade 1 Titanium vs. S44735 Stainless Steel

Grade 1 titanium belongs to the titanium alloys classification, while S44735 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 1 titanium and the bottom bar is S44735 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
220
Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 28
21
Fatigue Strength, MPa 170
300
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 39
82
Shear Strength, MPa 200
390
Tensile Strength: Ultimate (UTS), MPa 310
630
Tensile Strength: Yield (Proof), MPa 220
460

Thermal Properties

Latent Heat of Fusion, J/g 420
310
Maximum Temperature: Mechanical, °C 320
1100
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1420
Specific Heat Capacity, J/kg-K 540
480
Thermal Expansion, µm/m-K 8.8
11

Otherwise Unclassified Properties

Base Metal Price, % relative 37
21
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 31
4.4
Embodied Energy, MJ/kg 510
61
Embodied Water, L/kg 110
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
120
Resilience: Unit (Modulus of Resilience), kJ/m3 230
520
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
26
Strength to Weight: Axial, points 19
23
Strength to Weight: Bending, points 23
21
Thermal Shock Resistance, points 24
20

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 0
28 to 30
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
60.7 to 68.4
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
3.6 to 4.2
Nickel (Ni), % 0
0 to 1.0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0 to 0.030
0 to 0.045
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.095 to 100
0.2 to 1.0
Residuals, % 0 to 0.4
0