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AWS ERTi-2 vs. ASTM B540 Palladium

AWS ERTi-2 belongs to the titanium alloys classification, while ASTM B540 palladium belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AWS ERTi-2 and the bottom bar is ASTM B540 palladium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 20
1.1 to 14
Fatigue Strength, MPa 190
350
Poisson's Ratio 0.32
0.38
Shear Modulus, GPa 40
39
Tensile Strength: Ultimate (UTS), MPa 340
830 to 1240
Tensile Strength: Yield (Proof), MPa 280
620 to 1000

Thermal Properties

Latent Heat of Fusion, J/g 420
140
Melting Completion (Liquidus), °C 1670
1220
Melting Onset (Solidus), °C 1620
1020
Specific Heat Capacity, J/kg-K 540
240
Thermal Expansion, µm/m-K 8.7
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
4.9 to 5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
3.5 to 3.9

Otherwise Unclassified Properties

Density, g/cm3 4.5
13

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 360
1790 to 4660
Stiffness to Weight: Axial, points 13
4.7
Stiffness to Weight: Bending, points 35
12
Strength to Weight: Axial, points 21
18 to 27
Strength to Weight: Bending, points 24
15 to 20
Thermal Shock Resistance, points 27
41 to 61

Alloy Composition

Carbon (C), % 0 to 0.030
0
Copper (Cu), % 0
13.5 to 14.5
Gold (Au), % 0
9.5 to 10.5
Hydrogen (H), % 0 to 0.0080
0
Iron (Fe), % 0 to 0.12
0
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0
Palladium (Pd), % 0
34 to 36
Platinum (Pt), % 0
9.5 to 10.5
Silver (Ag), % 0
29 to 31
Titanium (Ti), % 99.667 to 99.92
0
Zinc (Zn), % 0
0.8 to 1.2
Residuals, % 0
0 to 0.3