C26800 Brass vs. ASTM B617 Coin Silver

C26800 brass belongs to the copper alloys classification, while ASTM B617 coin silver belongs to the otherwise unclassified metals. There are 17 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 C26800 brass and the bottom bar is ASTM B617 coin silver.

UNS C26800 (CW506L) Yellow Brass ASTM B617 Coin Silver Electrical Contact Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		110
Elastic (Young's, Tensile) Modulus, GPa		75

Poisson's Ratio		0.31
Poisson's Ratio		0.37

Shear Modulus, GPa		40
Shear Modulus, GPa		28

Tensile Strength: Ultimate (UTS), MPa		310 to 650
Tensile Strength: Ultimate (UTS), MPa		290 to 520

Thermal Properties

Latent Heat of Fusion, J/g		180
Latent Heat of Fusion, J/g		120

Melting Completion (Liquidus), °C		930
Melting Completion (Liquidus), °C		870

Melting Onset (Solidus), °C		900
Melting Onset (Solidus), °C		780

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		250

Thermal Expansion, µm/m-K		20
Thermal Expansion, µm/m-K		19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		27
Electrical Conductivity: Equal Volume, % IACS		83

Electrical Conductivity: Equal Weight (Specific), % IACS		30
Electrical Conductivity: Equal Weight (Specific), % IACS		72

Otherwise Unclassified Properties

Density, g/cm³		8.1
Density, g/cm³		10

Common Calculations

Stiffness to Weight: Axial, points		7.2
Stiffness to Weight: Axial, points		4.1

Stiffness to Weight: Bending, points		19
Stiffness to Weight: Bending, points		14

Strength to Weight: Axial, points		11 to 22
Strength to Weight: Axial, points		7.7 to 14

Strength to Weight: Bending, points		13 to 21
Strength to Weight: Bending, points		9.3 to 14

Thermal Shock Resistance, points		10 to 22
Thermal Shock Resistance, points		14 to 25

Alloy Composition

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Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.0050

Cadmium (Cd), %		0
Cadmium (Cd), %		0 to 0.050

Copper (Cu), %		64 to 68.5
Copper (Cu), %		9.0 to 10.4

Iron (Fe), %		0 to 0.050
Iron (Fe), %		0 to 0.050

Lead (Pb), %		0 to 0.15
Lead (Pb), %		0 to 0.030

Nickel (Ni), %		0
Nickel (Ni), %		0 to 0.010

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.020

Silver (Ag), %		0
Silver (Ag), %		89.6 to 91

Zinc (Zn), %		31 to 36
Zinc (Zn), %		0 to 0.060

Residuals, %		0 to 0.3
Residuals, %		0 to 0.060