ACI-ASTM CC50 Steel vs. ASTM B540 Palladium

ACI-ASTM CC50 steel belongs to the iron alloys classification, while ASTM B540 palladium belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CC50 steel and the bottom bar is ASTM B540 palladium.

ACI-ASTM CC50 (J92615) Cast Stainless Steel ASTM B540 Palladium Electrical Contact Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		110

Poisson's Ratio		0.27
Poisson's Ratio		0.38

Shear Modulus, GPa		80
Shear Modulus, GPa		39

Tensile Strength: Ultimate (UTS), MPa		430
Tensile Strength: Ultimate (UTS), MPa		830 to 1240

Thermal Properties

Latent Heat of Fusion, J/g		300
Latent Heat of Fusion, J/g		140

Melting Completion (Liquidus), °C		1420
Melting Completion (Liquidus), °C		1220

Melting Onset (Solidus), °C		1370
Melting Onset (Solidus), °C		1020

Specific Heat Capacity, J/kg-K		490
Specific Heat Capacity, J/kg-K		240

Thermal Expansion, µm/m-K		11
Thermal Expansion, µm/m-K		14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		2.3
Electrical Conductivity: Equal Volume, % IACS		4.9 to 5.5

Electrical Conductivity: Equal Weight (Specific), % IACS		2.7
Electrical Conductivity: Equal Weight (Specific), % IACS		3.5 to 3.9

Otherwise Unclassified Properties

Density, g/cm³		7.6
Density, g/cm³		13

Common Calculations

Stiffness to Weight: Axial, points		15
Stiffness to Weight: Axial, points		4.7

Stiffness to Weight: Bending, points		26
Stiffness to Weight: Bending, points		12

Strength to Weight: Axial, points		16
Strength to Weight: Axial, points		18 to 27

Strength to Weight: Bending, points		17
Strength to Weight: Bending, points		15 to 20

Thermal Shock Resistance, points		14
Thermal Shock Resistance, points		41 to 61

Alloy Composition

Carbon (C), %		0 to 0.5
Carbon (C), %		0

Chromium (Cr), %		26 to 30
Chromium (Cr), %		0

Copper (Cu), %		0
Copper (Cu), %		13.5 to 14.5

Gold (Au), %		0
Gold (Au), %		9.5 to 10.5

Iron (Fe), %		62.9 to 74
Iron (Fe), %		0

Manganese (Mn), %		0 to 1.0
Manganese (Mn), %		0

Nickel (Ni), %		0 to 4.0
Nickel (Ni), %		0

Palladium (Pd), %		0
Palladium (Pd), %		34 to 36

Phosphorus (P), %		0 to 0.040
Phosphorus (P), %		0

Platinum (Pt), %		0
Platinum (Pt), %		9.5 to 10.5

Silicon (Si), %		0 to 1.5
Silicon (Si), %		0

Silver (Ag), %		0
Silver (Ag), %		29 to 31

Sulfur (S), %		0 to 0.040
Sulfur (S), %		0

Zinc (Zn), %		0
Zinc (Zn), %		0.8 to 1.2

Residuals, %		0
Residuals, %		0 to 0.3