Precious Metal Ticusil (Ag-Cu-Ti) AS-BRAZED
Heat-treated state
also Ticusil
Reference condition for joint-level design data after a standard vacuum braze cycle.
Values for the AS-BRAZED condition
What is Ticusil (Ag-Cu-Ti) AS-BRAZED?
Ticusil (Ag-Cu-Ti) AS-BRAZED is Ticusil (Ag-Cu-Ti) heat treated to AS-BRAZED — reference condition for joint-level design data after a standard vacuum braze cycle. Ticusil (Ag-Cu-Ti) AS-BRAZED has a tensile strength of 292 MPa (42.4 ksi), weaker than 73% of precious metal grades. Elongation at break is 28% and the elastic modulus is 85 GPa (12.3 Msi). Ticusil (Ag-Cu-Ti) AS-BRAZED has a density of 9.7 g/cm³ (0.35 lb/in³), lighter than 78% of precious metal grades. It melts at 780°C (1,436 °F).
Advantages
- Low embodied carbon — 75 kg CO₂/kg, better than 75% of precious metal grades
Limitations
- Hard to polish — 60/100, worse than 92% of precious metal grades
- Difficult to machine — 30/100, worse than 86% of precious metal grades
- Difficult to weld — 20/100, worse than 86% of precious metal grades
Ticusil (Ag-Cu-Ti) AS-BRAZED properties
Typical room-temperature values for Ticusil (Ag-Cu-Ti) AS-BRAZED; 2 are specific to this condition. Other listed values are Ticusil (Ag-Cu-Ti) reference data and may not represent this condition. Bars are the position among precious metal grades.
Physical3
Ticusil (Ag-Cu-Ti) AS-BRAZED has a density of 9.7 g/cm³ (0.35 lb/in³), lighter than 78% of precious metal grades. It melts at 780°C (1,436 °F).
Mechanical7
Ticusil (Ag-Cu-Ti) AS-BRAZED has a tensile strength of 292 MPa (42.4 ksi), weaker than 73% of precious metal grades. Elongation at break is 28% and the elastic modulus is 85 GPa (12.3 Msi).
Thermal6
Ticusil (Ag-Cu-Ti) AS-BRAZED is rated for continuous service to 400°C (752 °F). It conducts heat at 219 W/m·K (126.5 BTU/hr·ft·°F), better than 71% of precious metal grades. Thermal expansion is 18.5 µm/m·K (10.3 µin/in·°F).
Electrical3
Ticusil (Ag-Cu-Ti) AS-BRAZED conducts electricity at 50 % IACS, better than 71% of precious metal grades.
Chemical & Environmental3
Corrosion resistance is good (68/100), worse than 74% of precious metal grades.
Sustainability4
Producing a kilogram of Ticusil (Ag-Cu-Ti) AS-BRAZED takes about 1,100 MJ of energy and emits 75 kg of CO₂ — less than 71% of precious metal grades. Typical recycled content is 30%.
Manufacturability6
Ticusil (Ag-Cu-Ti) AS-BRAZED's machinability is poor (30/100, worse than 86% of precious metal grades); weldability poor (20/100); formability very good (75/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Ticusil (Ag-Cu-Ti) AS-BRAZED
Is Ticusil (Ag-Cu-Ti) easy to machine?
Soft and gummy — foil is normally sheared, stamped or laser-cut rather than machined; avoid oil contamination that leaves carbon residue in the vacuum cycle.
Can Ticusil (Ag-Cu-Ti) be welded?
Not a weldable structural alloy; it is itself the filler — braze in vacuum better than 1×10⁻⁴ torr or in very dry, oxygen-free argon at 830–850 °C with short dwell.
Can Ticusil (Ag-Cu-Ti) be formed, bent or molded?
Readily rolled to <50 µm and stamped into preforms in the annealed state; re-anneal in vacuum if heavily cold worked.
What surface finishes work on Ticusil (Ag-Cu-Ti)?
Handle with gloves and store sealed — Ti oxidizes and tarnish or fingerprints degrade wetting; clean joints with acetone/isopropanol immediately before assembly, no acid pickling of the Ti-bearing surface.
Ticusil (Ag-Cu-Ti) chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Cu | 25.7 – 27.7 | 26.7 |
| Tiactive element; forms Ti-O/Ti-N/Ti-C reaction layer on ceramic | 4 – 5 | 4.5 |
| Other, eachimpurities; O and N kept low to preserve Ti activity | ≤ 0.05 | |
| Agbalance silver | ≥ 67.8 (balance) |
Ticusil (Ag-Cu-Ti) AS-BRAZED — frequently asked
What is Ticusil (Ag-Cu-Ti) AS-BRAZED used for?
Ticusil (Ag-Cu-Ti) AS-BRAZED is typically used for ceramic-metal vacuum seals, sapphire/quartz window sealing, semiconductor and RF vacuum device brazing and graphite-to-metal joints. In short: titanium-activated Ag-Cu eutectic; wets graphite and sapphire; vacuum brazing only.
What is the tensile strength of Ticusil (Ag-Cu-Ti) AS-BRAZED?
Ticusil (Ag-Cu-Ti) AS-BRAZED has a typical tensile strength of 292 MPa (42.4 ksi) — weaker than 73% of precious metal grades.
Is Ticusil (Ag-Cu-Ti) AS-BRAZED easy to machine?
Not especially — machinability is rated poor (30/100, worse than 86% of precious metal grades). Soft and gummy — foil is normally sheared, stamped or laser-cut rather than machined; avoid oil contamination that leaves carbon residue in the vacuum cycle.
Can Ticusil (Ag-Cu-Ti) AS-BRAZED be welded?
Not readily — weldability is rated poor (20/100). Not a weldable structural alloy; it is itself the filler — braze in vacuum better than 1×10⁻⁴ torr or in very dry, oxygen-free argon at 830–850 °C with short dwell.
What surface finishes work on Ticusil (Ag-Cu-Ti) AS-BRAZED?
Handle with gloves and store sealed — Ti oxidizes and tarnish or fingerprints degrade wetting; clean joints with acetone/isopropanol immediately before assembly, no acid pickling of the Ti-bearing surface.
Can Ticusil (Ag-Cu-Ti) AS-BRAZED be formed, bent or molded?
Readily rolled to <50 µm and stamped into preforms in the annealed state; re-anneal in vacuum if heavily cold worked.
What is the maximum service temperature of Ticusil (Ag-Cu-Ti) AS-BRAZED?
Ticusil (Ag-Cu-Ti) AS-BRAZED is rated for continuous use to about 400°C (752 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- Ticusil active braze alloy datasheet — Morgan Advanced Materials (Wesgo Metals) (2020)
- ASM Handbook Vol. 6 — Welding, Brazing and Soldering (active metal brazing) — ASM International (1993)
- AWS A5.8/A5.8M — Specification for Filler Metals for Brazing and Braze Welding — AWS (2019)
- GB/T 10046 — SAC (2018)
- Ag-Cu-Ti active braze alloy property compilations — ASM Alloy Center / open literature (2021)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.