Precious Metal IC-Ag99.99
IC-Ag99.99 is a refined fine-silver grade at 99.99% Ag, supplied as ingot, casting grain, foil, powder and O/H02/H04 rolled stock for use as alloying, plating and bullion feedstock.
Reference datasheet — IC-Ag99.99 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.
IC-Ag99.99 tempers and conditions
IC-Ag99.99 is supplied in 3 conditions, soft to hard.
Compare all 3 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Choose for deep drawing, chasing, bonding wire and maximum electrical conductivity. | 55 | 150 | 48 | 26 HB | 106 % IACS |
Half hard | Compromise temper for stamped contacts and jewellery parts needing some stiffness with residual bendability. | 175 | 235 | 12 | 58 HB | 104 % IACS |
Full hard | Use for spring-like wire, hard-drawn conductor and parts that must hold shape without heat treatment. | 270 | 310 | 4 | 82 HB | 103 % IACS |
Supply forms, finishes and certifications
Ways IC-Ag99.99 is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
FOIL | Foil / thin rolled strip | Supply form |
IngotDefault | As-cast refined bullion bar | Supply form |
POWDER | Atomised / chemically precipitated Ag powder | Printing process |
GRAIN | Grain / shot | Surface finish |
What is IC-Ag99.99?
IC-Ag99.99 is a refined fine-silver grade at 99.99% Ag, supplied as ingot, casting grain, foil, powder and O/H02/H04 rolled stock for use as alloying, plating and bullion feedstock. It is specified where purity and conduction dominate: 105% IACS electrical conductivity, 428 W/m·K thermal conductivity and 45% elongation for extreme reductions in rolling and drawing. Mechanical properties are minimal — 40 MPa yield, 130 MPa tensile, 25 HB — so it is not a structural material, it smears when machined, and bare surfaces blacken quickly in sulfur atmospheres. IC-Ag99.95 covers the same duties where 4N purity is not required. IC-Ag99.99 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-Ag99.99 has a yield strength of 45 MPa (6.53 ksi) and a tensile strength of 140 MPa (20.3 ksi) — weaker than 98% of precious metal grades. Elongation at break is 45% and the elastic modulus is 76 GPa (11 Msi).
What is IC-Ag99.99 used for?
- investment bullion
- electroplating anodes
- 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
- Ductile — tolerates forming and impact — 45%, better than 97% of precious metal grades
- Forms and bends easily — 98/100, better than 97% of precious metal grades
- Polishes to a fine finish — 95/100, better than 86% of precious metal grades
Limitations
- Low strength — 45 MPa (6.53 ksi), worse than 98% of precious metal grades
- Low stiffness — 76 GPa (11 Msi), worse than 96% of precious metal grades
IC-Ag99.99 properties
Typical room-temperature values; bars are the position among precious metal grades.
Physical3
IC-Ag99.99 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-Ag99.99 has a yield strength of 45 MPa (6.53 ksi) and a tensile strength of 140 MPa (20.3 ksi) — weaker than 98% of precious metal grades. Elongation at break is 45% and the elastic modulus is 76 GPa (11 Msi).
Thermal6
IC-Ag99.99 is rated for continuous service to 500°C (932 °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-Ag99.99 conducts electricity at 106 % IACS, better than 100% of precious metal grades.
Chemical & Environmental3
Corrosion resistance is very good (78/100), worse than 56% of precious metal grades.
Sustainability4
Producing a kilogram of IC-Ag99.99 takes about 1,500 MJ of energy and emits 110 kg of CO₂ — more than 51% of precious metal grades. Typical recycled content is 30%.
Manufacturability8
IC-Ag99.99's machinability is fair (45/100, better than 59% of precious metal grades); weldability good (65/100); formability excellent (98/100).
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-Ag99.99 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with IC-Ag99.99
Is IC-Ag99.99 easy to machine?
Very gummy and prone to smearing — use razor-sharp polished carbide or diamond tools, high speed, light feeds and generous lubricant; collect all chips as they are valuable.
Can IC-Ag99.99 be welded?
Joins readily by TIG, laser, resistance and ultrasonic bonding, but the extreme thermal conductivity demands high heat input and preheat; keep the melt oxygen-free to avoid gas porosity.
Can IC-Ag99.99 be formed, bent or molded?
Exceptional cold formability — can be rolled to leaf, deep drawn or wire-drawn with huge reductions; interstage anneal 600–700 °C in reducing or inert atmosphere.
IC-Ag99.99 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 %) |
|---|---|
| Cumax impurity | ≤ 0 |
| Pbmax impurity | ≤ 0 |
| Femax impurity | ≤ 0 |
| Bimax impurity | ≤ 8×10⁻⁴ |
| Sbmax impurity | ≤ 8×10⁻⁴ |
| Temax impurity | ≤ 8×10⁻⁴ |
| Semax impurity | ≤ 5×10⁻⁴ |
| Pdmax impurity | ≤ 0 |
| Total impuritiessum of all impurity elements | ≤ 0.01 |
| AgGB/T 4135 IC-Ag99.99, Ag ≥ 99.99 % | ≥ 99.99 (balance) |
What surface finishes work on IC-Ag99.99?
Polishes to the highest metallic reflectivity; protect with rhodium/palladium plating, anti-tarnish lacquer or benzotriazole-type inhibitors because sulfur atmospheres blacken bare silver quickly.
How much does IC-Ag99.99 cost?
IC-Ag99.99 is a high-cost precious metal ($$$$), pricier than about 78% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
IC-Ag99.99 — frequently asked
What is IC-Ag99.99 used for?
IC-Ag99.99 is typically used for investment bullion, electroplating anodes and alloy feedstock. In short: highest purity silver grade; top conductivity in family; feedstock, not structural.
What is the yield strength of IC-Ag99.99?
IC-Ag99.99 has a typical yield strength of 45 MPa (6.53 ksi) and a tensile strength of 140 MPa (20.3 ksi) — weaker than 98% of precious metal grades. Strength varies by condition: see the 3 listed tempers.
Is IC-Ag99.99 easy to machine?
Reasonably — machinability is rated fair (45/100, better than 59% of precious metal grades). Very gummy and prone to smearing — use razor-sharp polished carbide or diamond tools, high speed, light feeds and generous lubricant; collect all chips as they are valuable.
Can IC-Ag99.99 be welded?
Yes — weldability is rated good (65/100). Joins readily by TIG, laser, resistance and ultrasonic bonding, but the extreme thermal conductivity demands high heat input and preheat; keep the melt oxygen-free to avoid gas porosity.
What surface finishes work on IC-Ag99.99?
Polishes to the highest metallic reflectivity; protect with rhodium/palladium plating, anti-tarnish lacquer or benzotriazole-type inhibitors because sulfur atmospheres blacken bare silver quickly.
Can IC-Ag99.99 be formed, bent or molded?
Exceptional cold formability — can be rolled to leaf, deep drawn or wire-drawn with huge reductions; interstage anneal 600–700 °C in reducing or inert atmosphere.
What is the maximum service temperature of IC-Ag99.99?
IC-Ag99.99 is rated for continuous use to about 500°C (932 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does IC-Ag99.99 cost?
IC-Ag99.99 is a high-cost precious metal ($$$$), 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 (2016)
- ASTM B413 Standard Specification for Refined Silver — ASTM International (2019)
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys (Precious Metals) — ASM International (1990)
- CRC Handbook of Chemistry and Physics — CRC Press (2020)
- Precious metal physical property tables — Johnson Matthey / Heraeus technical data (2022)
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.