GRADE 1 TITANIUM VS. GRADE 2 TITANIUM
This is an excerpt from a post by Mark Picard from an article that I feel will be beneficial to all that have endured the discomfort associated with metal and alloy allergies.
He starts out…”First and foremost, to explain the grades of titanium to everybody so you understand what these numbers mean. Grades 1 through 4 are referred to as “unalloyed” commercially pure titanium grades. An unalloyed metal is one that does not include any elements of another metal. Many grades of titanium are alloyed with stronger metals, to achieve a higher overall strength. Now we can get down to business. The following is being quoted from Wikipedia:
“Grades 1-4 are unalloyed and considered commercially pure or “CP”. Generally the tensile and yield strength goes up with grade number for these “pure” grades. The difference in their physical properties is primarily due to the quantity of interstitial elements. They are used for corrosion resistance applications where cost, ease of fabrication, and welding are important.””… the rest of the article can be read by following this link http://dabtech.org/truth-behind-grade-1-titanium-vs-grade-2/
Grade 1 titanium is a softer metal and responds to the forming and shaping of wire and sheet metal with hand tools, which allows for a range of skill levels that you see in handmade titanium jewelry. Unlike other metals (e.g., silver or copper), “softer” titanium metal does not equate to “easier to work with”…quite the opposite! I enjoy forming grade 1 titanium and find it ideal for the one-of-a-kind jewelry that I design.
The grade 2 earrings, shown on the right of the picture, will stand up to more abuse having been machined milled. The tiny ball post earrings are fabricated by Dirinda Patterson and are now available on my website.