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EN 1.4527 Stainless Steel vs. Grade Ti-Pd18 Titanium

EN 1.4527 stainless steel belongs to the iron alloys classification, while grade Ti-Pd18 titanium belongs to the titanium alloys. There are 27 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 EN 1.4527 stainless steel and the bottom bar is grade Ti-Pd18 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
320
Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 40
17
Fatigue Strength, MPa 170
350
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 77
40
Tensile Strength: Ultimate (UTS), MPa 480
710
Tensile Strength: Yield (Proof), MPa 190
540

Thermal Properties

Latent Heat of Fusion, J/g 310
410
Maximum Temperature: Mechanical, °C 1100
330
Melting Completion (Liquidus), °C 1410
1640
Melting Onset (Solidus), °C 1360
1590
Specific Heat Capacity, J/kg-K 470
550
Thermal Conductivity, W/m-K 15
8.2
Thermal Expansion, µm/m-K 15
9.1

Otherwise Unclassified Properties

Density, g/cm3 8.1
4.5
Embodied Carbon, kg CO2/kg material 5.6
41
Embodied Energy, MJ/kg 78
670
Embodied Water, L/kg 210
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
110
Resilience: Unit (Modulus of Resilience), kJ/m3 95
1380
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 17
44
Strength to Weight: Bending, points 17
39
Thermal Diffusivity, mm2/s 4.0
3.3
Thermal Shock Resistance, points 12
52

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0 to 0.060
0 to 0.1
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 3.0 to 4.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 37.4 to 48.5
0 to 0.25
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 27.5 to 30.5
0 to 0.050
Oxygen (O), % 0
0 to 0.15
Palladium (Pd), % 0
0.040 to 0.080
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
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