ASTM Grade HN Steel vs. ASTM B617 Coin Silver

ASTM grade HN steel belongs to the iron alloys classification, while ASTM B617 coin silver belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HN steel and the bottom bar is ASTM B617 coin silver.

ASTM Grade HN (20Cr-25Ni, J94213) Cast Stainless Steel ASTM B617 Coin Silver Electrical Contact Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		75

Elongation at Break, %		9.0
Elongation at Break, %		1.1 to 22

Poisson's Ratio		0.28
Poisson's Ratio		0.37

Shear Modulus, GPa		77
Shear Modulus, GPa		28

Tensile Strength: Ultimate (UTS), MPa		500
Tensile Strength: Ultimate (UTS), MPa		290 to 520

Thermal Properties

Latent Heat of Fusion, J/g		310
Latent Heat of Fusion, J/g		120

Melting Completion (Liquidus), °C		1400
Melting Completion (Liquidus), °C		870

Melting Onset (Solidus), °C		1350
Melting Onset (Solidus), °C		780

Specific Heat Capacity, J/kg-K		480
Specific Heat Capacity, J/kg-K		250

Thermal Expansion, µm/m-K		16
Thermal Expansion, µm/m-K		19

Otherwise Unclassified Properties

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

Common Calculations

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		4.1

Stiffness to Weight: Bending, points		25
Stiffness to Weight: Bending, points		14

Strength to Weight: Axial, points		17
Strength to Weight: Axial, points		7.7 to 14

Strength to Weight: Bending, points		18
Strength to Weight: Bending, points		9.3 to 14

Thermal Shock Resistance, points		11
Thermal Shock Resistance, points		14 to 25

Alloy Composition

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

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

Carbon (C), %		0.2 to 0.5
Carbon (C), %		0

Chromium (Cr), %		19 to 23
Chromium (Cr), %		0

Copper (Cu), %		0
Copper (Cu), %		9.0 to 10.4

Iron (Fe), %		44.9 to 57.8
Iron (Fe), %		0 to 0.050

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

Manganese (Mn), %		0 to 2.0
Manganese (Mn), %		0

Molybdenum (Mo), %		0 to 0.5
Molybdenum (Mo), %		0

Nickel (Ni), %		23 to 27
Nickel (Ni), %		0 to 0.010

Phosphorus (P), %		0 to 0.040
Phosphorus (P), %		0 to 0.020

Silicon (Si), %		0 to 2.0
Silicon (Si), %		0

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

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

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

Residuals, %		0
Residuals, %		0 to 0.060