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ASTM B628 Ag-Cu vs. EN 1.4903 Stainless Steel

ASTM B628 Ag-Cu belongs to the otherwise unclassified metals classification, while EN 1.4903 stainless steel belongs to the iron alloys. There are 19 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 1.4903 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
190
Elongation at Break, % 1.1 to 17
20 to 21
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 31
75
Shear Strength, MPa 210 to 430
420
Tensile Strength: Ultimate (UTS), MPa 350 to 760
670 to 680

Thermal Properties

Latent Heat of Fusion, J/g 140
270
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
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 84
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 75
4.0

Otherwise Unclassified Properties

Density, g/cm3 10
7.8

Common Calculations

Stiffness to Weight: Axial, points 4.6
14
Stiffness to Weight: Bending, points 14
25
Strength to Weight: Axial, points 9.5 to 21
24
Strength to Weight: Bending, points 11 to 18
22
Thermal Shock Resistance, points 16 to 34
23

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.040
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0.080 to 0.12
Chromium (Cr), % 0
8.0 to 9.5
Copper (Cu), % 26.6 to 29
0 to 0.3
Iron (Fe), % 0 to 0.050
87.1 to 90.5
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.85 to 1.1
Nickel (Ni), % 0 to 0.010
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 71 to 73
0
Sulfur (S), % 0
0 to 0.015
Vanadium (V), % 0
0.18 to 0.25
Zinc (Zn), % 0 to 0.060
0
Residuals, % 0 to 0.21
0