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Grade 36 Titanium vs. AISI 309HCb Stainless Steel

Grade 36 titanium belongs to the titanium alloys classification, while AISI 309HCb stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade 36 titanium and the bottom bar is AISI 309HCb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 11
46
Fatigue Strength, MPa 300
210
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 39
78
Shear Strength, MPa 320
410
Tensile Strength: Ultimate (UTS), MPa 530
590
Tensile Strength: Yield (Proof), MPa 520
230

Thermal Properties

Latent Heat of Fusion, J/g 370
300
Maximum Temperature: Mechanical, °C 320
1090
Melting Completion (Liquidus), °C 2020
1420
Melting Onset (Solidus), °C 1950
1380
Specific Heat Capacity, J/kg-K 420
480
Thermal Expansion, µm/m-K 8.1
16

Otherwise Unclassified Properties

Density, g/cm3 6.3
7.8
Embodied Carbon, kg CO2/kg material 58
4.1
Embodied Energy, MJ/kg 920
59
Embodied Water, L/kg 130
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 59
210
Resilience: Unit (Modulus of Resilience), kJ/m3 1260
130
Stiffness to Weight: Axial, points 9.3
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 23
21
Strength to Weight: Bending, points 23
20
Thermal Shock Resistance, points 45
13

Alloy Composition

Carbon (C), % 0 to 0.030
0.040 to 0.1
Chromium (Cr), % 0
22 to 24
Hydrogen (H), % 0 to 0.0035
0
Iron (Fe), % 0 to 0.030
56 to 66
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0
12 to 16
Niobium (Nb), % 42 to 47
0 to 1.1
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.16
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 52.3 to 58
0
Residuals, % 0 to 0.4
0