Gold strip 0.9 mm, Au 99.9, soft, GOST 7221-2014

This item is a strip 0.9 mm thick made of gold grade Au 99.9 per GOST 7221-2014. The letter «M» in the original designation indicates the soft condition as provided by the standard’s notation system.

Product type

The image shows a flat gold strip but is not a measurement reference. Thickness and soft condition are confirmed by the product card; width, length, tolerances, and mechanical properties remain parameters of the order and quality document.

Characteristics

• Type: gold strip
• Grade: Au 99.9
• Thickness: 0.9 mm
• Condition: soft (M)
• Document: GOST 7221-2014 «Strips of gold, silver, and their alloys»

The strip per GOST 7221-2014 is a cold-rolled flat semi-finished product. Thickness is only one dimension: width, length, and deviations are specified separately. The standard provides for soft and hard conditions; the letter «M» means soft condition. Grade Au 99.99 or Au 99.9 defines the material, while the actual composition and batch number are given in the quality document.

Applications

• bending and forming of parts with confirmed soft condition of the material;
• cutting of technical and jewelry semi-finished products according to working drawings;
• manufacture of conductive elements with control of dimensions and surface cleanliness;

What to agree upon when ordering

Specify width, length, quantity, tolerances, and requirements for surface and edges. Ask to confirm the soft condition by designation in the quality document, the actual composition of Au 99.9, and the batch number. For stamping, soldering, or bending, agree on the minimum radius, allowable heating, and acceptance criteria. Packaging must prevent bending and scratching during transport.

Safety and storage

Store the strip on a clean support, protecting the surface and edges from scratches, moisture, and aggressive vapors. When cutting, use eye protection, gloves, and tools that prevent uncontrolled release of the workpiece. Sharp edges after cutting are treated according to the process chart. Scrap is collected separately; soldering, heating, and chemical treatment are performed with ventilation and protective equipment per the safety data sheet.