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AISI 309HCb Stainless Steel vs. Grade Ti-Pd17 Titanium

AISI 309HCb stainless steel belongs to the iron alloys classification, while grade Ti-Pd17 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AISI 309HCb stainless steel and the bottom bar is grade Ti-Pd17 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 46
22
Fatigue Strength, MPa 210
140
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
40
Tensile Strength: Ultimate (UTS), MPa 590
270
Tensile Strength: Yield (Proof), MPa 230
190

Thermal Properties

Latent Heat of Fusion, J/g 300
420
Maximum Temperature: Mechanical, °C 1090
320
Melting Completion (Liquidus), °C 1420
1660
Melting Onset (Solidus), °C 1380
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 15
21
Thermal Expansion, µm/m-K 16
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
7.1

Otherwise Unclassified Properties

Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 4.1
36
Embodied Energy, MJ/kg 59
600
Embodied Water, L/kg 170
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
55
Resilience: Unit (Modulus of Resilience), kJ/m3 130
180
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 21
17
Strength to Weight: Bending, points 20
21
Thermal Diffusivity, mm2/s 4.0
8.8
Thermal Shock Resistance, points 13
21

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.1
Chromium (Cr), % 22 to 24
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 56 to 66
0 to 0.2
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 12 to 16
0 to 0.030
Niobium (Nb), % 0 to 1.1
0
Oxygen (O), % 0
0 to 0.25
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
98.9 to 99.96
Residuals, % 0
0 to 0.4