Precious Metal Incusil-10 (Ag-Cu-In-Ti)
also Incusil-10
Incusil-10 is a silver-copper-indium-titanium active braze alloy: the titanium reduces ceramic oxides so the filler wets alumina, sapphire and refractory metals directly, without prior metallizing, while the indium lowers the melting range relative to plain Ag-Cu-Ti.
Reference datasheet — Incusil-10 (Ag-Cu-In-Ti) is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Incusil-10 (Ag-Cu-In-Ti) tempers and conditions
Incusil-10 (Ag-Cu-In-Ti) is supplied in one standard condition, AS-BRAZED.
Supply forms, finishes and certifications
Ways Incusil-10 (Ag-Cu-In-Ti) is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
FOILDefault | Foil / ribbon | Supply form |
POWDER-PASTE | Atomized powder / screen-printable paste | Supply form |
PREFORM | Stamped preform | Supply form |
WIRE | Wire | Supply form |
What is Incusil-10 (Ag-Cu-In-Ti)?
Incusil-10 is a silver-copper-indium-titanium active braze alloy: the titanium reduces ceramic oxides so the filler wets alumina, sapphire and refractory metals directly, without prior metallizing, while the indium lowers the melting range relative to plain Ag-Cu-Ti. It is used as rolled foil, wire, stamped preforms and paste for hermetic ceramic-to-metal seals, giving 330 MPa tensile, 220 MPa yield, 20 % elongation and service to about 400 °C. Brazing must run 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. Ticusil is the higher-temperature active-braze alternative. Incusil-10 (Ag-Cu-In-Ti) 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). Incusil-10 (Ag-Cu-In-Ti) has a yield strength of 220 MPa (31.9 ksi) and a tensile strength of 330 MPa (47.9 ksi) — stronger than 67% of precious metal grades. Elongation at break is 20% and the elastic modulus is 76 GPa (11 Msi).
What is Incusil-10 (Ag-Cu-In-Ti) used for?
- ceramic-to-metal seals
- sapphire and alumina window brazing
- vacuum electron device assembly
- aerospace ceramic joints
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
- Needs corrosion protection — 62/100, worse than 83% of precious metal grades
- Low electrical conductivity — 10 % IACS, worse than 79% of precious metal grades
- Limited ductility — 20%, worse than 77% of precious metal grades
Incusil-10 (Ag-Cu-In-Ti) properties
Typical room-temperature values; bars are the position among precious metal grades.
Physical3
Incusil-10 (Ag-Cu-In-Ti) 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) has a yield strength of 220 MPa (31.9 ksi) and a tensile strength of 330 MPa (47.9 ksi) — stronger than 67% of precious metal grades. Elongation at break is 20% and the elastic modulus is 76 GPa (11 Msi).
Thermal5
Incusil-10 (Ag-Cu-In-Ti) 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) 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) 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)'s machinability is fair (35/100, worse than 73% of precious metal grades); weldability poor (15/100); formability very good (80/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the precious metal family
Yield strength against density for every precious metal grade FabDigit runs. Incusil-10 (Ag-Cu-In-Ti) is highlighted; hover a dot for its name, or open the interactive family chart.
Working with Incusil-10 (Ag-Cu-In-Ti)
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.
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 |
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.
Equivalent designations
Standards and trade names that resolve to Precious Metal Incusil-10 (Ag-Cu-In-Ti) in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- Trade names
- Incusil-10
How much does Incusil-10 (Ag-Cu-In-Ti) cost?
Incusil-10 (Ag-Cu-In-Ti) is a high-cost precious metal ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Incusil-10 (Ag-Cu-In-Ti) — frequently asked
What is Incusil-10 (Ag-Cu-In-Ti) used for?
Incusil-10 (Ag-Cu-In-Ti) 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)?
Incusil-10 (Ag-Cu-In-Ti) has a typical yield strength of 220 MPa (31.9 ksi) and a tensile strength of 330 MPa (47.9 ksi) — stronger than 67% of precious metal grades.
Is Incusil-10 (Ag-Cu-In-Ti) 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) 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)?
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) 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)?
Incusil-10 (Ag-Cu-In-Ti) 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.
How much does Incusil-10 (Ag-Cu-In-Ti) cost?
Incusil-10 (Ag-Cu-In-Ti) is a high-cost precious metal ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
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; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.