AWS ER70S-A1 vs. ASTM B563 Pd-Ag-Cu

AWS ER70S-A1 belongs to the iron alloys classification, while ASTM B563 Pd-Ag-Cu belongs to the otherwise unclassified metals. There are 18 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS ER70S-A1 and the bottom bar is ASTM B563 Pd-Ag-Cu.

AWS ER70S-A1 or ER49S-A1 (K11235) Weld Metal ASTM B563 Palladium-Silver-Copper Electrical Contact Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		100

Elongation at Break, %		22
Elongation at Break, %		7.0 to 17

Poisson's Ratio		0.29
Poisson's Ratio		0.37

Shear Modulus, GPa		73
Shear Modulus, GPa		37

Tensile Strength: Ultimate (UTS), MPa		590
Tensile Strength: Ultimate (UTS), MPa		760 to 1170

Thermal Properties

Latent Heat of Fusion, J/g		260
Latent Heat of Fusion, J/g		150

Melting Completion (Liquidus), °C		1460
Melting Completion (Liquidus), °C		1180

Melting Onset (Solidus), °C		1420
Melting Onset (Solidus), °C		1030

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		260

Thermal Expansion, µm/m-K		13
Thermal Expansion, µm/m-K		14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		7.2
Electrical Conductivity: Equal Volume, % IACS		5.6 to 6.7

Electrical Conductivity: Equal Weight (Specific), % IACS		8.3
Electrical Conductivity: Equal Weight (Specific), % IACS		4.6 to 5.5

Otherwise Unclassified Properties

Density, g/cm³		7.8
Density, g/cm³		11

Common Calculations

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		5.2

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		14

Strength to Weight: Axial, points		21
Strength to Weight: Axial, points		19 to 30

Strength to Weight: Bending, points		20
Strength to Weight: Bending, points		17 to 22

Thermal Shock Resistance, points		17
Thermal Shock Resistance, points		39 to 61

Alloy Composition

Carbon (C), %		0 to 0.12
Carbon (C), %		0

Copper (Cu), %		0 to 0.35
Copper (Cu), %		15.5 to 16.5

Iron (Fe), %		96.1 to 99.3
Iron (Fe), %		0

Manganese (Mn), %		0 to 1.3
Manganese (Mn), %		0

Molybdenum (Mo), %		0.4 to 0.65
Molybdenum (Mo), %		0

Nickel (Ni), %		0 to 0.2
Nickel (Ni), %		0.8 to 1.2

Palladium (Pd), %		0
Palladium (Pd), %		43 to 45

Phosphorus (P), %		0 to 0.025
Phosphorus (P), %		0

Platinum (Pt), %		0
Platinum (Pt), %		0.8 to 1.2

Silicon (Si), %		0.3 to 0.7
Silicon (Si), %		0

Silver (Ag), %		0
Silver (Ag), %		37 to 39

Sulfur (S), %		0 to 0.025
Sulfur (S), %		0

Residuals, %		0
Residuals, %		0 to 0.4