AWS BAg-13a (P07560) Filler Metal
AWS BAg-13a is a silver-based filler metal for brazing. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. BAg-13a is the AWS designation for this material. P07560 is the UNS number.
It has a moderately high tensile strength among silver-based braze fillers. In addition, it has a moderately high melting temperature and a moderately high density.
The graph bars on the material properties cards below compare AWS BAg-13a 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.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
92 GPa 13 x 106 psi
Poisson's Ratio
0.36
Shear Modulus
34 GPa 4.9 x 106 psi
Tensile Strength: Ultimate (UTS)
180 MPa 26 x 103 psi
Thermal Properties
Brazing Temperature
720 to 980 °C 1320 to 1800 °F
Latent Heat of Fusion
160 J/g
Melting Completion (Liquidus)
890 °C 1640 °F
Melting Onset (Solidus)
770 °C 1420 °F
Specific Heat Capacity
300 J/kg-K 0.072 BTU/lb-°F
Thermal Expansion
19 µm/m-K
Otherwise Unclassified Properties
Density
9.8 g/cm3 610 lb/ft3
Embodied Carbon
54 kg CO2/kg material
Embodied Energy
850 MJ/kg 370 x 103 BTU/lb
Common Calculations
Stiffness to Weight: Axial
5.2 points
Stiffness to Weight: Bending
15 points
Strength to Weight: Axial
5.1 points
Strength to Weight: Bending
7.2 points
Thermal Shock Resistance
7.5 points
Alloy Composition
| Ag | 55 to 57 | |
| Cu | 40.4 to 43.5 | |
| Ni | 1.5 to 2.5 | |
| 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