Precious Metal 800 Silver Cast
Grade
EN Silber 800
Cast = as cast
For cast holloware, figurines and jewellery bodies; coarse dendritic structure with lower strength and some porosity.
Values for the Cast condition
Other 800 Silver tempers and conditions
800 Silver is listed in 7 conditions; see the grade overview at 800 Silver.
Compare all 7 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
CastThis page As cast | For cast holloware, figurines and jewellery bodies; coarse dendritic structure with lower strength and some porosity. | 115 | 250 | 15 | 68 HB | 76 % IACS |
AnnealedDefault soft, recrystallised (600–650 °C, quenched) | Default stock condition for sheet, wire and blanks that will be raised, spun, drawn or stamped. | 130 | 300 | 40 | 75 HB | 78 % IACS |
Quarter hard | Choose when moderate stiffness is needed but further bending or light forming still follows. | 250 | 350 | 20 | 100 HB | 77 % IACS |
Half hard | Standard temper for flatware blanks, hinges and parts needing dent resistance with some residual ductility. | 330 | 400 | 12 | 118 HB | 76.5 % IACS |
Hardened | Pick for knife handles, wear surfaces and stiff strip where no further forming is required. | 420 | 470 | 5 | 142 HB | 75 % IACS |
Spring hard | For springy clasps, pin stems and catches where elastic recovery matters most. | 480 | 520 | 3 | 155 HB | 75 % IACS |
Pre-hardened | Highest hardness/wear resistance from Cu-rich precipitation; used for cutlery blades, hinge pins and worn contact areas. | 510 | 580 | 4 | 175 HB | 85 % IACS |
What is 800 Silver Cast?
800 Silver Cast is 800 Silver in the Cast grade — for cast holloware, figurines and jewellery bodies; coarse dendritic structure with lower strength and some porosity. 800 Silver Cast has a yield strength of 115 MPa (16.7 ksi) and a tensile strength of 250 MPa (36.3 ksi) — weaker than 78% of precious metal grades. Elongation at break is 15% and the elastic modulus is 76 GPa (11 Msi). 800 Silver Cast has a density of 10.15 g/cm³ (0.367 lb/in³), lighter than 59% of precious metal grades. It melts at 779°C (1,434 °F). Annealed is the default condition FabDigit quotes; Cast is available on request or by drawing note.
Advantages
- Polishes to a fine finish — 95/100, better than 86% of precious metal grades
- High electrical conductivity — 76 % IACS, better than 78% of precious metal grades
- Conducts heat well — 315 W/m·K (182 BTU/hr·ft·°F), better than 76% of precious metal grades
Limitations
- Low stiffness — 76 GPa (11 Msi), worse than 96% of precious metal grades
- Needs corrosion protection — 58/100, worse than 90% of precious metal grades
- Limited formability — 50/100, worse than 90% of precious metal grades
- Limited ductility — 15%, worse than 86% of precious metal grades
- Low strength — 115 MPa (16.7 ksi), worse than 78% of precious metal grades
800 Silver Cast properties
Typical room-temperature values for 800 Silver Cast; 20 are specific to this condition. Other listed values are 800 Silver reference data and may not represent this condition. Bars are the position among precious metal grades.
Physical3
800 Silver Cast has a density of 10.15 g/cm³ (0.367 lb/in³), lighter than 59% of precious metal grades. It melts at 779°C (1,434 °F).
Mechanical12
800 Silver Cast has a yield strength of 115 MPa (16.7 ksi) and a tensile strength of 250 MPa (36.3 ksi) — weaker than 78% of precious metal grades. Elongation at break is 15% and the elastic modulus is 76 GPa (11 Msi).
Thermal6
800 Silver Cast is rated for continuous service to 250°C (482 °F). It conducts heat at 315 W/m·K (182 BTU/hr·ft·°F), better than 76% of precious metal grades. Thermal expansion is 18.9 µm/m·K (10.5 µin/in·°F).
Electrical3
800 Silver Cast conducts electricity at 76 % IACS, better than 78% of precious metal grades.
Chemical & Environmental3
Corrosion resistance is good (58/100), worse than 90% of precious metal grades.
Sustainability4
Producing a kilogram of 800 Silver Cast takes about 1,200 MJ of energy and emits 90 kg of CO₂ — less than 66% of precious metal grades. Typical recycled content is 50%.
Manufacturability8
800 Silver Cast's machinability is fair (50/100, better than 74% of precious metal grades); weldability very good (70/100); formability fair (50/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 800 Silver Cast
Is 800 Silver easy to machine?
Cuts cleanly with sharp, high-rake carbide or HSS tools and light oil mist; gummy and prone to smearing in the annealed state, so machine in half-hard or age-hardened condition for best finish.
Can 800 Silver be welded?
Excellent for laser and micro-TIG welding and for silver brazing; avoid overheating in reducing flames to limit hydrogen embrittlement, and use borax/boric flux to control copper oxidation.
Can 800 Silver be formed, bent or molded?
Very ductile when annealed — deep drawing, spinning, raising and stamping are routine; interanneal at 600–650 °C with quench roughly every 50 % reduction to avoid cracking.
What surface finishes work on 800 Silver?
Takes a mirror polish easily; depletion-gild or flash-plate with fine silver or rhodium to hide fire-scale and slow sulfide tarnishing, and store with anti-tarnish paper or lacquer.
800 Silver 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 |
|---|---|---|
| Aghallmark fineness 800/1000, negative tolerance not permitted under EN ISO 9202 | 80 – 81 | 80 |
| Znoptional deoxidiser/colour modifier in some continental mill alloys | 0 – 1.5 | 0 |
| Sioccasional anti-firescale/deoxidiser micro-addition | 0 – 0.05 | 0 |
| Cu≈19–20 % nominal | balance | — |
800 Silver Cast — frequently asked
What is 800 Silver Cast used for?
800 Silver Cast is typically used for european tableware, religious objects, jewelry and decorative silverware. In short: hardest common silver fineness; low-cost European standard; strong spinning and drawing alloy.
What is the yield strength of 800 Silver Cast?
800 Silver Cast has a typical yield strength of 115 MPa (16.7 ksi) and a tensile strength of 250 MPa (36.3 ksi) — weaker than 78% of precious metal grades. Strength varies by condition: see the 7 listed tempers.
Is 800 Silver Cast easy to machine?
Reasonably — machinability is rated fair (50/100, better than 74% of precious metal grades). Cuts cleanly with sharp, high-rake carbide or HSS tools and light oil mist; gummy and prone to smearing in the annealed state, so machine in half-hard or age-hardened condition for best finish.
Can 800 Silver Cast be welded?
Yes — weldability is rated very good (70/100). Excellent for laser and micro-TIG welding and for silver brazing; avoid overheating in reducing flames to limit hydrogen embrittlement, and use borax/boric flux to control copper oxidation.
What surface finishes work on 800 Silver Cast?
Takes a mirror polish easily; depletion-gild or flash-plate with fine silver or rhodium to hide fire-scale and slow sulfide tarnishing, and store with anti-tarnish paper or lacquer.
Can 800 Silver Cast be formed, bent or molded?
Very ductile when annealed — deep drawing, spinning, raising and stamping are routine; interanneal at 600–650 °C with quench roughly every 50 % reduction to avoid cracking.
What is the maximum service temperature of 800 Silver Cast?
800 Silver Cast is rated for continuous use to about 250°C (482 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 800 Silver Annealed and 800 Silver-PH?
Annealed is the default condition — default stock condition for sheet, wire and blanks that will be raised, spun, drawn or stamped. PH: highest hardness/wear resistance from Cu-rich precipitation; used for cutlery blades, hinge pins and worn contact areas. Yield strength is 130 MPa in Annealed versus 510 MPa in PH.
Sources
- EN ISO 9202 — Jewellery: fineness of precious metal alloys — ISO/CEN (2019)
- Gesetz über den Feingehalt der Gold- und Silberwaren (German hallmarking law, 800 fineness) — Bundesgesetzblatt
- ASM Handbook Vol.2 — Properties and Selection: Nonferrous Alloys (Silver and Silver Alloys) — ASM International (1990)
- ASM Handbook Vol.3 — Alloy Phase Diagrams (Ag-Cu system) — ASM International (1992)
- Jewellery master-alloy and mill-product data for Ag-Cu 800/925 sheet and wire — Legor / Umicore (2023)
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.