AWS BAg-10 (P07700) Filler Metal
AWS BAg-10 is a silver-based filler metal for brazing. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. BAg-10 is the AWS designation for this material. P07700 is the UNS number.
It has a fairly low tensile strength and a moderately high density among silver-based braze fillers.
The graph bars on the material properties cards below compare AWS BAg-10 to: silver-based braze fillers (top), all alloys in the same category (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Thermal Properties
Brazing Temperature
740 to 970 °C 1360 to 1770 °F
Latent Heat of Fusion
130 J/g
Melting Completion (Liquidus)
740 °C 1360 °F
Melting Onset (Solidus)
690 °C 1280 °F
Specific Heat Capacity
280 J/kg-K 0.067 BTU/lb-°F
Thermal Expansion
20 µm/m-K
Other Material Properties
Density
9.8 g/cm3 610 lb/ft3
Elastic (Young's, Tensile) Modulus
82 GPa 12 x 106 psi
Poisson's Ratio
0.35
Shear Modulus
30 GPa 4.4 x 106 psi
Tensile Strength: Ultimate (UTS)
140 MPa 20 x 103 psi
Common Calculations
Stiffness to Weight: Axial
4.6 points
Stiffness to Weight: Bending
15 points
Strength to Weight: Axial
4.0 points
Strength to Weight: Bending
6.1 points
Thermal Shock Resistance
6.2 points
Alloy Composition
| Ag | 69 to 71 | |
| Cu | 19 to 21 | |
| Zn | 8.0 to 12 | |
| res. | 0 to 0.15 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
AWS A5.8: Specification for Filler Metals for Brazing and Braze Welding