Precious Metal Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED
Heat-treated state
also Incusil-10
Property set representing the solidified joint after a vacuum braze cycle — use for joint-strength design rather than bulk filler data.
Values for the AS-BRAZED condition
What is Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED?
Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED is Incusil-10 (Ag-Cu-In-Ti) heat treated to AS-BRAZED — property set representing the solidified joint after a vacuum braze cycle — use for joint-strength design rather than bulk filler data. Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED has a yield strength of 220 MPa (31.9 ksi) and a tensile strength of 260 MPa (37.7 ksi) — stronger than 67% of precious metal grades. Elongation at break is 12% and the elastic modulus is 76 GPa (11 Msi). Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED has a density of 9.9 g/cm³ (0.358 lb/in³), lighter than 70% of precious metal grades. It melts at 685°C (1,265 °F).
Limitations
- Low stiffness — 76 GPa (11 Msi), worse than 96% of precious metal grades
- Difficult to weld — 15/100, worse than 96% of precious metal grades
- Limited ductility — 12%, worse than 88% of precious metal grades
- Needs corrosion protection — 62/100, worse than 83% of precious metal grades
- Low electrical conductivity — 10 % IACS, worse than 79% of precious metal grades
Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED properties
Typical room-temperature values for Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED; 5 are specific to this condition. Other listed values are Incusil-10 (Ag-Cu-In-Ti) reference data and may not represent this condition. Bars are the position among precious metal grades.
Physical3
Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED has a density of 9.9 g/cm³ (0.358 lb/in³), lighter than 70% of precious metal grades. It melts at 685°C (1,265 °F).
Mechanical10
Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED has a yield strength of 220 MPa (31.9 ksi) and a tensile strength of 260 MPa (37.7 ksi) — stronger than 67% of precious metal grades. Elongation at break is 12% and the elastic modulus is 76 GPa (11 Msi).
Thermal5
Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED is rated for continuous service to 400°C (752 °F). It conducts heat at 70 W/m·K (40.4 BTU/hr·ft·°F), worse than 63% of precious metal grades. Thermal expansion is 18.5 µm/m·K (10.3 µin/in·°F).
Electrical3
Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED conducts electricity at 10 % IACS, worse than 79% of precious metal grades.
Chemical & Environmental3
Corrosion resistance is good (62/100), worse than 83% of precious metal grades.
Sustainability4
Producing a kilogram of Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED takes about 1,250 MJ of energy and emits 90 kg of CO₂ — less than 64% of precious metal grades. Typical recycled content is 30%.
Manufacturability7
Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED's machinability is fair (35/100, worse than 73% of precious metal grades); weldability poor (15/100); formability very good (80/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED
Is Incusil-10 (Ag-Cu-In-Ti) easy to machine?
Rarely machined — soft and gummy; supplied as rolled foil, drawn wire or stamped preforms rather than machined parts.
Can Incusil-10 (Ag-Cu-In-Ti) be welded?
Not a weldable structural alloy; it is the filler itself — braze in vacuum better than 10⁻⁴ Pa or high-purity argon at 800–850 °C, since titanium oxidizes and loses activity in ordinary furnace atmospheres.
Can Incusil-10 (Ag-Cu-In-Ti) be formed, bent or molded?
Very ductile: cold-rolls to 25 µm foil and blanks cleanly into washers/rings; anneal between heavy reductions.
What surface finishes work on Incusil-10 (Ag-Cu-In-Ti)?
Handle with gloves and degrease before brazing — fingerprints and oxides kill titanium activity; joints can be lightly polished but not plated or anodized.
Incusil-10 (Ag-Cu-In-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 | 26 – 28 | 27 |
| Inlowers solidus/liquidus vs Ag-Cu-Ti | 9.5 – 10.5 | 10 |
| Tiactive element; reacts with ceramic to form titanide wetting layer | 1 – 1.5 | 1.25 |
| Agnominally ~61–63 wt % | balance |
Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED — frequently asked
What is Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED used for?
Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED is typically used for ceramic-to-metal seals, sapphire and alumina window brazing, vacuum electron device assembly and aerospace ceramic joints. In short: active braze, no metallizing; indium-lowered melting range; hermetic ceramic-metal seals.
What is the yield strength of Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED?
Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED has a typical yield strength of 220 MPa (31.9 ksi) and a tensile strength of 260 MPa (37.7 ksi) — stronger than 67% of precious metal grades.
Is Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED easy to machine?
Not especially — machinability is rated fair (35/100, worse than 73% of precious metal grades). Rarely machined — soft and gummy; supplied as rolled foil, drawn wire or stamped preforms rather than machined parts.
Can Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED be welded?
Not readily — weldability is rated poor (15/100). Not a weldable structural alloy; it is the filler itself — braze in vacuum better than 10⁻⁴ Pa or high-purity argon at 800–850 °C, since titanium oxidizes and loses activity in ordinary furnace atmospheres.
What surface finishes work on Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED?
Handle with gloves and degrease before brazing — fingerprints and oxides kill titanium activity; joints can be lightly polished but not plated or anodized.
Can Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED be formed, bent or molded?
Very ductile: cold-rolls to 25 µm foil and blanks cleanly into washers/rings; anneal between heavy reductions.
What is the maximum service temperature of Incusil-10 (Ag-Cu-In-Ti) AS-BRAZED?
Incusil-10 (Ag-Cu-In-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
- Wesgo Metals Incusil / Incusil-ABA active braze alloy data — Morgan Advanced Materials (2020)
- ASM Handbook Vol. 6 — Welding, Brazing and Soldering (active metal brazing of ceramics) — ASM International (1993)
- AWS A5.8/A5.8M — Specification for Filler Metals for Brazing and Braze Welding — AWS (2019)
- GB/T 10046 (2018)
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.