Analysis of common metal jewelry base materials
April 13,2022
Based on the consideration of the scope of use and price factors, several metal materials such as 925 silver, titanium steel, copper and iron will be introduced.
925 silver
Also known as standard silver, it is composed of 92.5% silver + 7.5% other metals (copper).
Chemical properties: The chemical properties are stable, but it is easy to combine with sulfur to form silver sulfide, such as contact with air, sweat, cosmetics, sulfur soap, etc., so that the surface of the jewelry becomes black and tarnished.
Aesthetics: There is a beautiful metallic luster.
Machinability: Good ductility, easy to process, and can be made into finer styles. At the same time, it is soft and easy to deform.
Price: The price is moderate, and it is the cheapest material in precious metals. Allergy: Good anti-allergic.
Maintenance: easy to blacken, need to be sealed and stored, blackened can be wiped with toothpaste or silver cloth.
Titanium steel
A commercial name that does not contain titanium, but is actually 316L stainless steel.
Chemical properties: good corrosion resistance, can not change color for a long time.
Aesthetics: It has a cool luster and looks textured.
Machinability: High hardness, not suitable for processing into complex styles, with limitations.
Price: It is more expensive than ordinary stainless steel, but it is relatively cheap in jewelry. Allergy: It can be used for medical purposes, and it has good anti-allergic properties.
Maintenance: Waterproof, no discoloration, easy to maintain, can be cleaned with a soft cloth. Care should be taken to avoid sharp objects scratching the surface.
grass copper
Commonly used for jewelry making are brass and red copper.
Brass: Copper + Zinc.
Red copper: pure copper.
Chemical properties: Not very active, but after being placed in humid air for a long time, the copper surface will slowly form a layer of patina (basic copper carbonate), which can prevent further corrosion of the metal.
Aesthetics: Brass is light golden yellow, shiny, with a retro feel; red copper is rose red and shiny.
Machinability: Red copper has good ductility, soft and easy to deform. Brass has higher hardness and better wear resistance than red copper.
Price: more affordable
Allergic: Not easy to cause allergies
Maintenance: It needs to be sealed and stored, and it is easy to generate patina.
iron
Pure iron is a silver-white metal that is flexible and ductile.
Chemical properties: The chemical properties of iron are relatively active, and it is easy to rust in humid air, and rust faster in humid air in the presence of acid, alkali or salt solutions.
Aesthetics: Common iron is black because the surface is covered with a protective film whose main component is black triiron tetroxide, which lacks aesthetics.
Machinability: Good ductility, easy to process.cheap price.
Allergies: Rust can cause allergies.
Maintenance: not easy to maintain.