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AWS BAg-21 vs. ASTM B628 Ag-Cu

Both AWS BAg-21 and ASTM B628 Ag-Cu are otherwise unclassified metals. They have a moderately high 91% of their average alloy composition in common. There are 15 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-21 and the bottom bar is ASTM B628 Ag-Cu.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 85
83
Poisson's Ratio 0.36
0.36
Shear Modulus, GPa 31
31
Tensile Strength: Ultimate (UTS), MPa 150
350 to 760

Thermal Properties

Latent Heat of Fusion, J/g 140
140
Melting Completion (Liquidus), °C 800
780
Melting Onset (Solidus), °C 690
780
Specific Heat Capacity, J/kg-K 280
280
Thermal Expansion, µm/m-K 19
19

Otherwise Unclassified Properties

Density, g/cm3 9.8
10

Common Calculations

Stiffness to Weight: Axial, points 4.8
4.6
Stiffness to Weight: Bending, points 15
14
Strength to Weight: Axial, points 4.2
9.5 to 21
Strength to Weight: Bending, points 6.4
11 to 18
Thermal Shock Resistance, points 6.6
16 to 34

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Copper (Cu), % 27.5 to 29.5
26.6 to 29
Iron (Fe), % 0
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Nickel (Ni), % 2.0 to 3.0
0 to 0.010
Phosphorus (P), % 0
0 to 0.030
Silver (Ag), % 62 to 64
71 to 73
Tin (Sn), % 5.0 to 7.0
0
Zinc (Zn), % 0
0 to 0.060
Residuals, % 0 to 0.15
0 to 0.21