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AISI 201L Stainless Steel vs. Grade Ti-Pd18 Titanium

AISI 201L stainless steel belongs to the iron alloys classification, while grade Ti-Pd18 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 201L stainless steel and the bottom bar is grade Ti-Pd18 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190 to 320
320
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 22 to 46
17
Fatigue Strength, MPa 270 to 530
350
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 740 to 1040
710
Tensile Strength: Yield (Proof), MPa 290 to 790
540

Thermal Properties

Latent Heat of Fusion, J/g 280
410
Maximum Temperature: Mechanical, °C 880
330
Melting Completion (Liquidus), °C 1410
1640
Melting Onset (Solidus), °C 1370
1590
Specific Heat Capacity, J/kg-K 480
550
Thermal Conductivity, W/m-K 15
8.2
Thermal Expansion, µm/m-K 17
9.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.7

Otherwise Unclassified Properties

Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 2.6
41
Embodied Energy, MJ/kg 38
670
Embodied Water, L/kg 140
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 210 to 300
110
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1570
1380
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 27 to 37
44
Strength to Weight: Bending, points 24 to 30
39
Thermal Diffusivity, mm2/s 4.0
3.3
Thermal Shock Resistance, points 16 to 23
52

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0 to 0.030
0 to 0.1
Chromium (Cr), % 16 to 18
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 67.9 to 75
0 to 0.25
Manganese (Mn), % 5.5 to 7.5
0
Nickel (Ni), % 3.5 to 5.5
0 to 0.050
Nitrogen (N), % 0 to 0.25
0
Oxygen (O), % 0
0 to 0.15
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
92.5 to 95.5
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4