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ASTM B628 Ag-Cu vs. S38815 Stainless Steel

ASTM B628 Ag-Cu belongs to the otherwise unclassified metals classification, while S38815 stainless steel belongs to the iron alloys. There are 17 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 S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
190
Elongation at Break, % 1.1 to 17
34
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 31
74
Shear Strength, MPa 210 to 430
410
Tensile Strength: Ultimate (UTS), MPa 350 to 760
610

Thermal Properties

Latent Heat of Fusion, J/g 140
370
Melting Completion (Liquidus), °C 780
1360
Melting Onset (Solidus), °C 780
1310
Specific Heat Capacity, J/kg-K 280
500
Thermal Expansion, µm/m-K 19
15

Otherwise Unclassified Properties

Density, g/cm3 10
7.5

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
22
Strength to Weight: Bending, points 11 to 18
21
Thermal Shock Resistance, points 16 to 34
15

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.3
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
13 to 15
Copper (Cu), % 26.6 to 29
0.75 to 1.5
Iron (Fe), % 0 to 0.050
56.1 to 67
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0 to 0.010
13 to 17
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0
5.5 to 6.5
Silver (Ag), % 71 to 73
0
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.060
0
Residuals, % 0 to 0.21
0