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What is KDM Gold?

Published in Gold Jewelry Solder 2 mins read

KDM gold refers to a specific type of gold alloy historically used primarily for soldering components in gold jewelry.

According to Bajaj Finserv, KDM gold is defined as an alloy consisting of 92% gold and 8% cadmium. This specific combination was utilized as a solder to fuse different parts of gold jewelry together.

Understanding KDM Gold

The term "KDM" itself comes from the use of Cadmium (Cd) in the soldering alloy. Unlike traditional soldering methods that might use external solder with a lower melting point, the KDM process involved using this higher purity gold-cadmium alloy.

Key Characteristics of KDM Gold

  • Composition: 92% Gold, 8% Cadmium
  • Primary Use: Soldering or fusing gold jewelry components.
  • Process: A method of soldering using the gold-cadmium alloy.
  • Result: A seamless appearance in the final jewelry piece without visible solder lines.

The use of KDM gold allowed for a strong bond between jewelry pieces and contributed to a cleaner, more integrated look compared to older soldering techniques. The reference specifically highlights that the KDM process resulted in a seamless appearance without using external solder in the traditional sense, relying instead on this internal alloy composition.

Here's a simple breakdown of the composition:

Component Percentage
Gold 92%
Cadmium 8%

While KDM gold offered advantages in jewelry making regarding aesthetics and strength, it is important to note that the use of cadmium has raised environmental and health concerns over time, leading to a shift towards alternative soldering methods and alloys in the modern jewelry industry.