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AWS BAg-19 vs. AWS BAg-23

Both AWS BAg-19 and AWS BAg-23 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 85% of their average alloy composition in common.

For each property being compared, the top bar is AWS BAg-19 and the bottom bar is AWS BAg-23.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 74
90
Poisson's Ratio 0.37
0.36
Shear Modulus, GPa 27
33
Tensile Strength: Ultimate (UTS), MPa 140
170

Thermal Properties

Brazing Temperature, °C 770 to 980
750 to 1040
Latent Heat of Fusion, J/g 120
130
Melting Completion (Liquidus), °C 890
970
Melting Onset (Solidus), °C 760
960
Specific Heat Capacity, J/kg-K 250
270
Thermal Expansion, µm/m-K 20
20

Otherwise Unclassified Properties

Density, g/cm3 10
10

Common Calculations

Stiffness to Weight: Axial, points 4.0
5.0
Stiffness to Weight: Bending, points 14
15
Strength to Weight: Axial, points 3.8
4.7
Strength to Weight: Bending, points 5.8
6.8
Thermal Shock Resistance, points 6.9
6.8

Alloy Composition

Copper (Cu), % 6.6 to 7.9
0
Lithium (Li), % 0.15 to 0.3
0
Manganese (Mn), % 0
13.9 to 16
Silver (Ag), % 92 to 93
84 to 86
Residuals, % 0
0 to 0.15