Precious Metal 833 Silver-H01
Supply condition
H01 = quarter hard
Light temper for parts that must hold shape but still take mild bending.
Values for the H01 condition
Other 833 Silver tempers and conditions
833 Silver is listed in 7 conditions; see the grade overview at 833 Silver.
Compare all 7 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
ODefault Annealed | Standard stocked sheet/wire condition for raising, spinning, deep drawing and chasing. | 100 | 300 | 40 | 58 HB | 83 % IACS |
As fabricated | Condition of cast hollowware, handles and jewellery bodies straight from the mould before working or ageing. | 115 | 280 | 15 | 64 HB | 82 % IACS |
H01This page Quarter hard | Light temper for parts that must hold shape but still take mild bending. | 250 | 360 | 20 | 85 HB | 82.5 % IACS |
Half hard | General-purpose temper for flatware blanks, bezels and rims needing rigidity. | 330 | 420 | 12 | 104 HB | 82 % IACS |
Pre-hardened | Precipitation hardening of the Cu-rich phase — use to harden finished cast or formed pieces without cold work. | 420 | 520 | 8 | 147 HB | 80 % IACS |
Full hard | Choose for knife handles, stiff wire and wear-exposed edges where no further forming is needed. | 430 | 500 | 5 | 128 HB | — |
Spring hard | For spring clips, pin stems and catch parts requiring maximum elastic limit. | 500 | 560 | 3 | 142 HB | 81 % IACS |
What is 833 Silver-H01?
833 Silver-H01 is 833 Silver supplied in the H01 condition — light temper for parts that must hold shape but still take mild bending. 833 Silver-H01 has a yield strength of 250 MPa (36.3 ksi) and a tensile strength of 360 MPa (52.2 ksi) — stronger than 81% of precious metal grades. Elongation at break is 20% and the elastic modulus is 79 GPa (11.5 Msi). 833 Silver-H01 has a density of 10.2 g/cm³ (0.368 lb/in³), lighter than 57% of precious metal grades. It melts at 779°C (1,434 °F). O is the default condition FabDigit quotes; H01 is available on request or by drawing note.
Advantages
- Easy to machine — 58/100, better than 95% of precious metal grades
- Conducts heat well — 340 W/m·K (196.4 BTU/hr·ft·°F), better than 86% of precious metal grades
- High electrical conductivity — 82.5 % IACS, better than 86% of precious metal grades
- Polishes to a fine finish — 95/100, better than 86% of precious metal grades
- High strength — 250 MPa (36.3 ksi), better than 81% of precious metal grades
Limitations
- Limited service temperature — 170°C (338 °F), worse than 100% of precious metal grades
- Needs corrosion protection — 60/100, worse than 88% of precious metal grades
- Low stiffness — 79 GPa (11.5 Msi), worse than 86% of precious metal grades
- Limited ductility — 20%, worse than 77% of precious metal grades
833 Silver-H01 properties
Typical room-temperature values for 833 Silver-H01; 21 are specific to this condition. Other listed values are 833 Silver reference data and may not represent this condition. Bars are the position among precious metal grades.
Physical3
833 Silver-H01 has a density of 10.2 g/cm³ (0.368 lb/in³), lighter than 57% of precious metal grades. It melts at 779°C (1,434 °F).
Mechanical12
833 Silver-H01 has a yield strength of 250 MPa (36.3 ksi) and a tensile strength of 360 MPa (52.2 ksi) — stronger than 81% of precious metal grades. Elongation at break is 20% and the elastic modulus is 79 GPa (11.5 Msi).
Thermal6
833 Silver-H01 is rated for continuous service to 170°C (338 °F). It conducts heat at 340 W/m·K (196.4 BTU/hr·ft·°F), better than 86% of precious metal grades. Thermal expansion is 18.7 µm/m·K (10.4 µin/in·°F).
Electrical3
833 Silver-H01 conducts electricity at 82.5 % IACS, better than 86% of precious metal grades.
Chemical & Environmental3
Corrosion resistance is good (60/100), worse than 88% of precious metal grades.
Sustainability4
Producing a kilogram of 833 Silver-H01 takes about 1,250 MJ of energy and emits 85 kg of CO₂ — less than 64% of precious metal grades. Typical recycled content is 60%.
Manufacturability8
833 Silver-H01's machinability is good (58/100, better than 95% of precious metal grades); weldability good (55/100); formability very good (75/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with 833 Silver-H01
Is 833 Silver easy to machine?
Machines gummy — use sharp, polished high-rake carbide or HSS, high speed, light feed and generous lubricant; collect all swarf for refining.
Can 833 Silver be welded?
Best joined by hard soldering with Ag brazing alloys or by laser/pulse-arc welding; torch welding risks copper oxidation, porosity and firescale.
Can 833 Silver be formed, bent or molded?
Excellent cold formability in the annealed temper (raising, spinning, deep drawing, stamping); interanneal at 600–650 °C with rapid quench every 40–50 % reduction.
What surface finishes work on 833 Silver?
Polishes to a high mirror; remove firescale by pickling or depletion silvering, then optionally rhodium-plate or lacquer for tarnish resistance, or patinate with liver of sulphur.
833 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 833/1000, no negative tolerance under Dutch Waarborgwet | 83.3 – 84.5 | 83.3 |
| Znoptional deoxidiser in some casting stocks | 0 – 1 | 0 |
| Sioccasional grain/oxidation control addition | 0 – 0.05 | 0 |
| Other (Pb, Cd, Ni)impurities; Cd and Ni restricted for skin contact (EU REACH) | 0 – 0.1 | 0 |
| Cuprincipal hardener | ≥ 15 (balance) | — |
833 Silver-H01 — frequently asked
What is 833 Silver-H01 used for?
833 Silver-H01 is typically used for antique Dutch silverware restoration, decorative items and giftware, hallmarked reproduction flatware, hollowware and boxes, jewelry components and ecclesiastical and ceremonial pieces. In short: dutch second fineness standard; very high cold formability; restoration-grade silver alloy.
What is the yield strength of 833 Silver-H01?
833 Silver-H01 has a typical yield strength of 250 MPa (36.3 ksi) and a tensile strength of 360 MPa (52.2 ksi) — stronger than 81% of precious metal grades. Strength varies by condition: see the 7 listed tempers.
Is 833 Silver-H01 easy to machine?
Reasonably — machinability is rated good (58/100, better than 95% of precious metal grades). Machines gummy — use sharp, polished high-rake carbide or HSS, high speed, light feed and generous lubricant; collect all swarf for refining.
Can 833 Silver-H01 be welded?
Yes — weldability is rated good (55/100). Best joined by hard soldering with Ag brazing alloys or by laser/pulse-arc welding; torch welding risks copper oxidation, porosity and firescale.
What surface finishes work on 833 Silver-H01?
Polishes to a high mirror; remove firescale by pickling or depletion silvering, then optionally rhodium-plate or lacquer for tarnish resistance, or patinate with liver of sulphur.
Can 833 Silver-H01 be formed, bent or molded?
Excellent cold formability in the annealed temper (raising, spinning, deep drawing, stamping); interanneal at 600–650 °C with rapid quench every 40–50 % reduction.
What is the maximum service temperature of 833 Silver-H01?
833 Silver-H01 is rated for continuous use to about 170°C (338 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between 833 Silver-O and 833 Silver-H08?
O is the default condition — standard stocked sheet/wire condition for raising, spinning, deep drawing and chasing. H08: for spring clips, pin stems and catch parts requiring maximum elastic limit. Yield strength is 100 MPa in O versus 500 MPa in H08.
Sources
- Waarborgwet 1986 — Dutch hallmarking standards for silver (835/833/925) — Waarborg Holland (1986)
- ISO 9202 Jewellery — Fineness of precious metal alloys — ISO (2019)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys (Silver and Silver Alloys) — ASM International (1990)
- ASM Binary Alloy Phase Diagrams — Ag–Cu system — ASM International (1990)
- The Theory and Practice of Goldsmithing / jewellery alloy metallurgy references — Brynmorgen Press (2004)
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.