Precious Metal BAg-10
UNS P07700
BAg-10 (UNS P07700) is a high-silver, cadmium-free brazing filler from the AWS BAg family, with a melting range above the BAg-1 series.
Reference datasheet — BAg-10 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.
Values for the AS-BRAZED condition
BAg-10 tempers and conditions
BAg-10 is supplied in one standard condition, AS-BRAZED. AS-BRAZED is the default FabDigit quotes; the values on this page are for it.
Supply forms, finishes and certifications
Ways BAg-10 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
ANN-WIRE | Annealed wire / rod | Supply form |
CD-WIRE | Cold drawn / spring-hard wire | Supply form |
FLUX-COATED | Flux-coated rod | Supply form |
POWDER-PASTE | Atomised powder / flux-bearing paste | Supply form |
PREFORM | Stamped ring, washer or formed shape | Supply form |
STRIP | Rolled strip / sheet / shim | Supply form |
What is BAg-10?
BAg-10 (UNS P07700) is a high-silver, cadmium-free brazing filler from the AWS BAg family, with a melting range above the BAg-1 series. Engineers select it where cadmium fumes must be avoided but a higher joint service temperature is acceptable; it is supplied as annealed or cold-drawn wire, strip, stamped preforms, powder-paste and flux-coated forms. The as-brazed deposit runs about 200 MPa yield, 400 MPa tensile, 30 % elongation, 85 HB, 130 W/m·K and 32 % IACS, with service to 400 °C. It contains zinc, so heating must be rapid and vacuum brazing is not appropriate; BAg-13a is the zinc-free alternative for furnace work. BAg-10 has a density of 9.8 g/cm³ (0.354 lb/in³), lighter than 75% of precious metal grades. It melts at 690°C (1,274 °F). BAg-10 has a yield strength of 200 MPa (29 ksi) and a tensile strength of 400 MPa (58 ksi) — stronger than 51% of precious metal grades. Elongation at break is 30% and the elastic modulus is 85 GPa (12.3 Msi).
What is BAg-10 used for?
- food and medical equipment brazing
- high-purity piping
- elevated-temperature service joints
Advantages
- Easy to machine — 55/100, better than 86% of precious metal grades
- Low embodied carbon — 70 kg CO₂/kg, better than 76% of precious metal grades
BAg-10 properties
Typical room-temperature values for BAg-10-AS-BRAZED; bars are the position among precious metal grades.
Physical3
BAg-10 has a density of 9.8 g/cm³ (0.354 lb/in³), lighter than 75% of precious metal grades. It melts at 690°C (1,274 °F).
Mechanical10
BAg-10 has a yield strength of 200 MPa (29 ksi) and a tensile strength of 400 MPa (58 ksi) — stronger than 51% of precious metal grades. Elongation at break is 30% and the elastic modulus is 85 GPa (12.3 Msi).
Thermal6
BAg-10 is rated for continuous service to 400°C (752 °F). It conducts heat at 130 W/m·K (75.1 BTU/hr·ft·°F), better than 64% of precious metal grades. Thermal expansion is 18.5 µm/m·K (10.3 µin/in·°F).
Electrical3
BAg-10 conducts electricity at 32 % IACS, better than 66% of precious metal grades.
Chemical & Environmental3
Corrosion resistance is very good (70/100), worse than 70% of precious metal grades.
Sustainability4
Producing a kilogram of BAg-10 takes about 1,070 MJ of energy and emits 70 kg of CO₂ — less than 74% of precious metal grades. Typical recycled content is 40%.
Manufacturability6
BAg-10's machinability is good (55/100, better than 86% of precious metal grades); formability excellent (85/100).
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. BAg-10 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with BAg-10
Is BAg-10 easy to machine?
Rarely machined — soft and gummy; use sharp tools, high rake and light cuts, and recover all chips as silver scrap.
Can BAg-10 be welded?
Not a structural weld metal; joints are made by torch, induction, furnace or dip brazing at 745–845 °C with rapid heating to limit zinc loss.
Can BAg-10 be formed, bent or molded?
Readily drawn to fine wire, rolled to thin shim and stamped into rings; interstage annealing needed after heavy cold reduction.
BAg-10 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 |
|---|---|---|
| AgAWS A5.8 BAg-10 / UNS P07700 | 69 – 71 | 70 |
| Cu | 19 – 21 | 20 |
| Cdcadmium-free grade; trace limit | ≤ 0.01 | 0 |
| Other elements, totalper AWS A5.8 | ≤ 0.15 | |
| Zn | balance |
What surface finishes work on BAg-10?
White fillet blends with steel and stainless; remove fluoride/borate flux residue with hot water or 10 % citric acid to avoid post-braze corrosion; plates and polishes well.
Equivalent designations
Standards and trade names that resolve to Precious Metal BAg-10 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- UNS
- P07700
- Also called
- AWS BAg-10
How much does BAg-10 cost?
BAg-10 is a high-cost precious metal ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
BAg-10 — frequently asked
What is BAg-10 used for?
BAg-10 is typically used for food and medical equipment brazing, high-purity piping and elevated-temperature service joints. In short: cadmium-free high-silver filler; higher service temperature than BAg-1; good electrical and thermal conduction.
What is the yield strength of BAg-10?
BAg-10 has a typical yield strength of 200 MPa (29 ksi) and a tensile strength of 400 MPa (58 ksi) — stronger than 51% of precious metal grades.
Is BAg-10 easy to machine?
Reasonably — machinability is rated good (55/100, better than 86% of precious metal grades). Rarely machined — soft and gummy; use sharp tools, high rake and light cuts, and recover all chips as silver scrap.
Can BAg-10 be welded?
Not a structural weld metal; joints are made by torch, induction, furnace or dip brazing at 745–845 °C with rapid heating to limit zinc loss.
What surface finishes work on BAg-10?
White fillet blends with steel and stainless; remove fluoride/borate flux residue with hot water or 10 % citric acid to avoid post-braze corrosion; plates and polishes well.
Can BAg-10 be formed, bent or molded?
Readily drawn to fine wire, rolled to thin shim and stamped into rings; interstage annealing needed after heavy cold reduction.
What is the maximum service temperature of BAg-10?
BAg-10 is rated for continuous use to about 400°C (752 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does BAg-10 cost?
BAg-10 is a high-cost precious metal ($$$$), 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
- AWS A5.8M/A5.8 Specification for Filler Metals for Brazing and Braze Welding — AWS (2019)
- ASM Handbook Vol. 6 — Welding, Brazing and Soldering — ASM International (1993)
- Brazing Handbook, 5th ed. — American Welding Society (2007)
- Silver brazing alloy datasheets (BAg series) — Lucas-Milhaupt / Handy & Harman (2022)
- GB/T 10046 — SAC (China) (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.