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ASTM B628 Ag-Cu vs. EN 1.6781 Steel

ASTM B628 Ag-Cu belongs to the otherwise unclassified metals classification, while EN 1.6781 steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is ASTM B628 Ag-Cu and the bottom bar is EN 1.6781 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
190
Elongation at Break, % 1.1 to 17
17
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 31
73
Tensile Strength: Ultimate (UTS), MPa 350 to 760
830

Thermal Properties

Latent Heat of Fusion, J/g 140
260
Melting Completion (Liquidus), °C 780
1460
Melting Onset (Solidus), °C 780
1420
Specific Heat Capacity, J/kg-K 280
470
Thermal Expansion, µm/m-K 19
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 84
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 75
9.1

Otherwise Unclassified Properties

Density, g/cm3 10
7.9

Common Calculations

Stiffness to Weight: Axial, points 4.6
13
Stiffness to Weight: Bending, points 14
24
Strength to Weight: Axial, points 9.5 to 21
29
Strength to Weight: Bending, points 11 to 18
25
Thermal Shock Resistance, points 16 to 34
24

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0.15 to 0.19
Chromium (Cr), % 0
1.3 to 1.8
Copper (Cu), % 26.6 to 29
0
Iron (Fe), % 0 to 0.050
92.6 to 94.6
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0.55 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.6
Nickel (Ni), % 0 to 0.010
3.0 to 3.5
Phosphorus (P), % 0 to 0.030
0 to 0.015
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 71 to 73
0
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0 to 0.060
0
Residuals, % 0 to 0.21
0