A soft, yellow, corrosion-resistant precious element, the most malleable and ductile metal. A good thermal and electrical conductor, gold is sometimes alloyed to increase its strength. It is used in jewelry, and as a plated coating on a wide variety of electrical and mechanical components. Atomic number 79; atomic weight 196.967; melting point 1,063.0°C; boiling point 2,966.0°C; specific gravity 19.32 g / cm^3.
Standard purity is 99.95%. Also available as 99.99% pure, 99.999% pure, and 14 karat. Gold is available in wire, sheet, rod, tube, casting pieces, powder and shapes. Many items are in stock or have short fabrication times. Surepure can draw gold wire to below 0.001 inch diameter and roll sheet to below 0.001 inch thick. Surepure has sputtering targets of various sizes. Contact us to learn more about our quick delivery to meet your exact requirements.
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Buy Gold from Surepure Chemetals
Properties and Uses of Gold
Gold is very ductile (can be stretched) and malleable (can be compressed).
As such, gold wire can be drawn to very small diameters, and gold sheet can be made very thin.
Gold is resistant to corrosion.
It conducts electricity well and so is used heavily in electronics.
Gold has catalytic properties, meaning it can speed up chemical reactions without being used up;
this makes gold useful for catalytic converters.
Since gold does not corrode and rarely reacts with the human body, it can be used
for dentistry and medical implants.
Gold ASTM Specifications
Surepure Chemetals sells pure gold covered by the ASTM B562 specification for refined gold and
by the ASTM F72 specification for gold bonding wire for semiconductor device electrical connections.
Harmonized System Export Codes for Gold
The HS code for gold sheet is 7108.13.55.00.
The HS code for gold wire is 7108.13.70.00.
The HS code for gold powder is 7108.11.00.00.
The HS code for gold-based chemicals is 2843.30.00.00.
Standard diameters range from 0.0005" to 0.250".
Standard purity is 99.99% pure gold (4N pure).
Higher purities and other diameters are available by request.
Although 24 karat gold is our standard purity, we can also make-to-order white gold, yellow gold, and rose gold.
We use the term "wire" for smaller diameters that are supplied on a spool or as a coil.
We use the term "rod" when the diameter is large enough that it can be supplied as a straight length.
Standard thicknesses range from 0.0005" to 0.250".
Available widths depend on the thickness.
We use the terms "foil," "sheet," and "plate" for shorter cut pieces (usually up to 12" long) that are usually supplied flat. "Foil" is very thin; "Sheet" is a little thicker and is thus a little stronger and bends less; "Plate" is even thicker and is barely pliable.
We use the terms "strip" and "ribbon" for longer pieces that are usually supplied on a spool or a cylindrical core. "Ribbon" is somewhat narrow (usually less than an inch wide); "Strip" is wider.
Standard thicknesses range from 0.004" to 0.125".
Standard diameters range from 0.188" to 2.0". "Target," "disc," and "circle" all refer to metal that is flat and round, like a coin.
They are sometimes used as sputtering targets for physical vapor deposition (PVD).
"Gold evaporation slugs", also known as "gold vapor deposition slugs",
are short cylinders of gold (like half a AAA battery).
They are often used as gold vapor deposition slugs for physical vapor deposition (PVD).
PVD for evaporation slugs involves heating the slug so that the gold vaporizes, transfers in a vacuum or partial vacuum to the substrate (the object that will be coated), and then condenses to form a thin film on the surface.
Typical slug sizes are 1/4" diameter x 1/4" long and 3/8" diameter x 3/8" long.
Surepure Chemetals can supply made-to-order gold slugs.
Lead time is 2 - 6 weeks.
We supply pure gold powder and granules.
We use the term "powder" for smaller grain sizes, and
we use the term "granules" for larger grain sizes.
Pure gold granules are sometimes called "gold casting grain".
We also supply gold-based chemicals.