Menu (ESC)

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


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


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

Silver (Ag)Ag 55 to 57
Copper (Cu)Cu 40.4 to 43.5
Nickel (Ni)Ni 1.5 to 2.5
Residualsres. 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