Annealed Silver vs. ASTM A387 Grade 21 Class 1

Annealed silver belongs to the otherwise unclassified metals classification, while ASTM A387 grade 21 class 1 belongs to the iron alloys. There are 21 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 annealed silver and the bottom bar is ASTM A387 grade 21 class 1.

Annealed Commercially Pure Silver ASTM A387 Grade 21 Class 1 Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		71
Elastic (Young's, Tensile) Modulus, GPa		190

Elongation at Break, %		29
Elongation at Break, %		21

Poisson's Ratio		0.37
Poisson's Ratio		0.29

Shear Modulus, GPa		26
Shear Modulus, GPa		74

Shear Strength, MPa		120
Shear Strength, MPa		310

Tensile Strength: Ultimate (UTS), MPa		190
Tensile Strength: Ultimate (UTS), MPa		500

Thermal Properties

Latent Heat of Fusion, J/g		110
Latent Heat of Fusion, J/g		260

Melting Completion (Liquidus), °C		960
Melting Completion (Liquidus), °C		1470

Melting Onset (Solidus), °C		960
Melting Onset (Solidus), °C		1430

Specific Heat Capacity, J/kg-K		240
Specific Heat Capacity, J/kg-K		470

Thermal Conductivity, W/m-K		420
Thermal Conductivity, W/m-K		41

Thermal Expansion, µm/m-K		20
Thermal Expansion, µm/m-K		13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		100
Electrical Conductivity: Equal Volume, % IACS		7.6

Electrical Conductivity: Equal Weight (Specific), % IACS		87
Electrical Conductivity: Equal Weight (Specific), % IACS		8.8

Otherwise Unclassified Properties

Density, g/cm³		10
Density, g/cm³		7.9

Common Calculations

Stiffness to Weight: Axial, points		3.8
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		13
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		4.9
Strength to Weight: Axial, points		18

Strength to Weight: Bending, points		6.9
Strength to Weight: Bending, points		18

Thermal Diffusivity, mm²/s		170
Thermal Diffusivity, mm²/s		11

Thermal Shock Resistance, points		9.5
Thermal Shock Resistance, points		14

Alloy Composition

Carbon (C), %		0
Carbon (C), %		0.050 to 0.15

Chromium (Cr), %		0
Chromium (Cr), %		2.8 to 3.3

Iron (Fe), %		0
Iron (Fe), %		94.4 to 96

Manganese (Mn), %		0
Manganese (Mn), %		0.3 to 0.6

Molybdenum (Mo), %		0
Molybdenum (Mo), %		0.9 to 1.1

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

Silicon (Si), %		0
Silicon (Si), %		0 to 0.5

Silver (Ag), %		99.9 to 100
Silver (Ag), %		0

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

Residuals, %		0 to 0.1
Residuals, %		0