Gold wire of ultra-fine dimensions, Zl 99.99, TU 48-1-155-84

This is an ultra-fine gold wire with a mass fraction of the base metal of not less than 99.99%. The product type and TU are confirmed by the manufacturer’s official nomenclature catalog.

Product Type

The word «ultra-fine» is not a numerical size. The image is generic and does not show the diameter, so the exact range, tolerances, and mechanical properties are not derived from the name. They are confirmed by the certificate and specification.

Characteristics

• Type: gold wire of ultra-fine dimensions
• Grade: Zl 99.99
• Gold: not less than 99.99% by mass
• Document: TU 48-1-155-84 «Gold wire of ultra-fine dimensions»

The wire is a long semi-finished product; its purpose depends on the diameter, cross-section shape, material condition, and surface quality. The purity Zl 99.99 does not convey these parameters and does not confirm suitability for a specific bonding operation. For microwire, tolerances, uniformity along the length, tensile properties, and winding requirements are especially important.

Applications

• precision conductive connections after checking the diameter and mounting method;
• manufacture of miniature components and meshes using an agreed technology;
• research operations where high purity and controlled wire geometry are important;

What to Specify When Ordering

Specify the nominal diameter, tolerance, material condition, tensile strength, and elongation if they are critical. Agree on the mass on the spool, spool material and dimensions, winding pitch, continuous length, surface and packaging requirements. For bonding, specify the method, equipment, and sample test criteria.

Safety and Storage

Unwind the wire without sharp bends or surface contamination. Thin ends can injure skin and eyes, so use safety glasses, gloves, and appropriate tools. During soldering or thermocompression bonding, control heated parts and flux products. Collect cut-offs and scraps separately; store and account for them according to regulations for precious metal products.