AWS BAg-5 (P07453) Filler Metal
AWS BAg-5 is a silver-based filler metal for brazing. Cited properties are appropriate for the as-fabricated (no temper or treatment) condition. BAg-5 is the AWS designation for this material. P07453 is the UNS number.
It has a moderately low tensile strength and a moderately high heat capacity among silver-based braze fillers.
The graph bars on the material properties cards below compare AWS BAg-5 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
88 GPa 13 x 106 psi
Poisson's Ratio
0.33
Shear Modulus
33 GPa 4.8 x 106 psi
Tensile Strength: Ultimate (UTS)
150 MPa 22 x 103 psi
Thermal Properties
Brazing Temperature
740 to 870 °C 1370 to 1600 °F
Latent Heat of Fusion
140 J/g
Melting Completion (Liquidus)
740 °C 1370 °F
Melting Onset (Solidus)
660 °C 1230 °F
Specific Heat Capacity
320 J/kg-K 0.076 BTU/lb-°F
Thermal Expansion
21 µm/m-K
Otherwise Unclassified Properties
Density
9.0 g/cm3 560 lb/ft3
Embodied Carbon
44 kg CO2/kg material
Embodied Energy
700 MJ/kg 300 x 103 BTU/lb
Common Calculations
Stiffness to Weight: Axial
5.4 points
Stiffness to Weight: Bending
16 points
Strength to Weight: Axial
4.6 points
Strength to Weight: Bending
6.9 points
Thermal Shock Resistance
5.9 points
Alloy Composition
| Ag | 44 to 46 | |
| Cu | 29 to 31 | |
| Zn | 23 to 27 | |
| 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