Precious Metal IC-Ag99.95
IC-Ag99.95 is a high-purity refined silver ingot grade at 99.95% Ag, used for electrical contacts, catalytic and chemical hardware, and as alloying feedstock.
Reference datasheet — IC-Ag99.95 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 Cast condition
IC-Ag99.95 tempers and conditions
IC-Ag99.95 is supplied in 5 conditions, soft to hard. Cast is the default FabDigit quotes; the values on this page are for it.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
CastDefault As cast | Standard 1 kg / 15 kg refined ingot for remelting, alloying, electrolyte or chemical feedstock. | 45 | 130 | 35 | 25 HB | 106 % IACS |
Annealed | Pick for deep drawing, spinning, bonding wire, gaskets and contact rivets needing maximum ductility and conductivity. | 55 | 150 | 48 | 26 HB | 106 % IACS |
Half hard | Compromise temper for stamped contacts and formed parts that must hold shape yet still bend. | 180 | 240 | 15 | 58 HB | 105 % IACS |
Full hard | Choose for hard-drawn wire, springy contact fingers and parts needing maximum strength with little forming. | 270 | 310 | 5 | 90 HB | 103 % IACS |
Spring hard | Only for fine spring wire and probe/contact wire where peak strength matters more than ductility. | 320 | 360 | 2 | 102 HB | 102 % IACS |
Supply forms, finishes and certifications
Ways IC-Ag99.95 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
GRAIN | Shot / grain | Surface finish |
What is IC-Ag99.95?
IC-Ag99.95 is a high-purity refined silver ingot grade at 99.95% Ag, used for electrical contacts, catalytic and chemical hardware, and as alloying feedstock. Engineers specify it for 106% IACS electrical conductivity and 429 W/m·K thermal conductivity with 35% elongation in the O condition, and it is stocked as cast ingot, grain and O/H02/H04/H08 rolled and drawn product. It carries only 45 MPa yield, 130 MPa tensile and 25 HB with a 300 °C service ceiling, machines poorly (score 45) and tarnishes in sulfide environments. IC-Ag99.99 is the choice when 4N purity is specified. IC-Ag99.95 has a density of 10.49 g/cm³ (0.379 lb/in³), heavier than 55% of precious metal grades. It melts at 962°C (1,763 °F). IC-Ag99.95 has a yield strength of 45 MPa (6.53 ksi) and a tensile strength of 130 MPa (18.9 ksi) — weaker than 98% of precious metal grades. Elongation at break is 35% and the elastic modulus is 74 GPa (10.7 Msi).
What is IC-Ag99.95 used for?
- electrical contacts
- catalysts
- alloy feedstock
Advantages
- Conducts heat well — 429 W/m·K (247.9 BTU/hr·ft·°F), better than 100% of precious metal grades
- High electrical conductivity — 106 % IACS, better than 100% of precious metal grades
- Polishes to a fine finish — 95/100, better than 86% of precious metal grades
- Ductile — tolerates forming and impact — 35%, better than 83% of precious metal grades
- Readily welded — 75/100, better than 78% of precious metal grades
Limitations
- Low stiffness — 74 GPa (10.7 Msi), worse than 99% of precious metal grades
- Low strength — 45 MPa (6.53 ksi), worse than 98% of precious metal grades
IC-Ag99.95 properties
Typical room-temperature values for IC-Ag99.95-Cast; bars are the position among precious metal grades.
Physical3
IC-Ag99.95 has a density of 10.49 g/cm³ (0.379 lb/in³), heavier than 55% of precious metal grades. It melts at 962°C (1,763 °F).
Mechanical12
IC-Ag99.95 has a yield strength of 45 MPa (6.53 ksi) and a tensile strength of 130 MPa (18.9 ksi) — weaker than 98% of precious metal grades. Elongation at break is 35% and the elastic modulus is 74 GPa (10.7 Msi).
Thermal6
IC-Ag99.95 is rated for continuous service to 300°C (572 °F). It conducts heat at 429 W/m·K (247.9 BTU/hr·ft·°F), better than 100% of precious metal grades. Thermal expansion is 19.5 µm/m·K (10.8 µin/in·°F).
Electrical3
IC-Ag99.95 conducts electricity at 106 % IACS, better than 100% of precious metal grades.
Chemical & Environmental3
Corrosion resistance is very good (82/100), better than 53% of precious metal grades.
Sustainability4
Producing a kilogram of IC-Ag99.95 takes about 1,600 MJ of energy and emits 110 kg of CO₂ — more than 56% of precious metal grades. Typical recycled content is 30%.
Manufacturability8
IC-Ag99.95's machinability is fair (45/100, better than 59% of precious metal grades); weldability very good (75/100); formability excellent (92/100).
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. IC-Ag99.95 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with IC-Ag99.95
Is IC-Ag99.95 easy to machine?
Very gummy — use sharp polished high-rake HSS/carbide, high speed, light depth and generous lubrication to avoid smearing and built-up edge; collect all swarf for refining.
Can IC-Ag99.95 be welded?
Resistance, laser and micro-TIG welding work but the 429 W/m·K conductivity demands short, high-energy pulses; more commonly joined by silver brazing or soft soldering.
Can IC-Ag99.95 be formed, bent or molded?
Outstanding cold formability in O temper (deep draw, spin, roll-bond, draw to <25 µm wire); anneal 550–650 °C in slightly reducing or inert atmosphere and avoid oxygen/hydrogen embrittlement cycles.
IC-Ag99.95 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.
| Element | Spec limit (wt %) |
|---|---|
| Cuprincipal permitted impurity | ≤ 0.03 |
| Pb | ≤ 0.02 |
| Fe | ≤ 0 |
| Bi | ≤ 0 |
| Sb | ≤ 0 |
| Se | ≤ 0 |
| Te | ≤ 0 |
| Pd | ≤ 0 |
| AgGB/T 4135 grade IC-Ag99.95; total impurities ≤ 0.05 wt% | ≥ 99.95 (balance) |
What surface finishes work on IC-Ag99.95?
Not anodisable; electropolish or buff to a mirror finish, then rhodium/gold plate or apply anti-tarnish lacquer/benzotriazole treatment to suppress sulfide blackening.
How much does IC-Ag99.95 cost?
IC-Ag99.95 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.
IC-Ag99.95 — frequently asked
What is IC-Ag99.95 used for?
IC-Ag99.95 is typically used for electrical contacts, catalysts and alloy feedstock. In short: highest IACS on file; contact and catalyst purity; very soft, non-structural.
What is the yield strength of IC-Ag99.95?
IC-Ag99.95 has a typical yield strength of 45 MPa (6.53 ksi) and a tensile strength of 130 MPa (18.9 ksi) — weaker than 98% of precious metal grades. Strength varies by condition: see the 5 listed tempers.
Is IC-Ag99.95 easy to machine?
Reasonably — machinability is rated fair (45/100, better than 59% of precious metal grades). Very gummy — use sharp polished high-rake HSS/carbide, high speed, light depth and generous lubrication to avoid smearing and built-up edge; collect all swarf for refining.
Can IC-Ag99.95 be welded?
Yes — weldability is rated very good (75/100). Resistance, laser and micro-TIG welding work but the 429 W/m·K conductivity demands short, high-energy pulses; more commonly joined by silver brazing or soft soldering.
What surface finishes work on IC-Ag99.95?
Not anodisable; electropolish or buff to a mirror finish, then rhodium/gold plate or apply anti-tarnish lacquer/benzotriazole treatment to suppress sulfide blackening.
Can IC-Ag99.95 be formed, bent or molded?
Outstanding cold formability in O temper (deep draw, spin, roll-bond, draw to <25 µm wire); anneal 550–650 °C in slightly reducing or inert atmosphere and avoid oxygen/hydrogen embrittlement cycles.
What is the maximum service temperature of IC-Ag99.95?
IC-Ag99.95 is rated for continuous use to about 300°C (572 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between IC-Ag99.95 Cast and IC-Ag99.95-H08?
Cast is the default condition — standard 1 kg / 15 kg refined ingot for remelting, alloying, electrolyte or chemical feedstock. H08: only for fine spring wire and probe/contact wire where peak strength matters more than ductility. Yield strength is 45 MPa in Cast versus 320 MPa in H08.
How much does IC-Ag99.95 cost?
IC-Ag99.95 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
- GB/T 4135 (Silver ingots) (2016)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys and Special-Purpose Materials (Precious Metals) — ASM International (1990)
- CRC Handbook of Chemistry and Physics (element property tables) — CRC Press (2020)
- ASTM B413 — Standard Specification for Refined Silver — ASTM International (2019)
- Silver alloy datasheets and precious-metal engineering data — Heraeus / Umicore technical literature (2022)
- (silver spot quotations) (2026)
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.