Silver Ray blank from ZlSrPlM 750-80-90 alloy

«Silver Ray» is the catalog name for a high-readiness jewelry blank, not a designation of a silver item. The confirmed material is a gold alloy ZlSrPlM 750-80-90 with platinum, silver, and copper.

What this item is

For purchase, use the execution code, drawing, and quality document.

Composition and documents

• Grade: ZlSrPlM 750-80-90
• Gold: 75.0–75.5% by mass
• Silver: 7.5–8.5% by mass
• Platinum: 8.5–9.5% by mass
• Copper: balance
• Supply document: TU 9641-823-05785324-2005

The grade belongs to the gold–silver–platinum–copper system. The designation fixes the alloy composition but does not specify dimensions, hardness, or condition of a particular blank. Platinum must not be interpreted as a coating: by nomenclature, it is an alloy component. For operation planning, a batch certificate and delivery condition data are required.

Applications and technological role

• further jewelry processing of the blank with control of mass and allowances;
• assembly and finishing after checking surface condition and process compatibility;
• small-batch production of 750-fineness items per approved design documentation;

What to agree before ordering

Specify the «Silver Ray» execution variant, dimensions, mass, tolerances, allowances, surface condition, and completeness. Request a batch certificate with gold, silver, platinum, and copper fractions, melt number, and packaging information. For soldering or deformation operations, agree on material condition and process limitations. Always supplement the series name with the grade ZlSrPlM 750-80-90.

Safety and handling

Do not mix chips and dust with other alloys: this is important for technology and precious metal accounting. Perform machining and polishing with local exhaust ventilation, eye and hand protection. During soldering, consider heated parts and flux fumes; parameters are taken from the approved process card. Collect waste separately.