Due to a personal family medical emergency, the new blog will not be functional on March 1, 2021. Please check in for updates on the MOVE Date! Thank you for your understanding!
Anita
Due to a personal family medical emergency, the new blog will not be functional on March 1, 2021. Please check in for updates on the MOVE Date! Thank you for your understanding!
Anita
AFTER MARCH 1, 2021 Please go to our new website www.anitaroks.com and sign-up as a VIP Club Member to get access to our news, coupons, updates and our blog
You will see the Jewelry Chat tab in the top menu. Click it and go to the blog posts. You can read any post and comment there.
We have included some blog posts from our past site that have been the most popular and we will be adding new blog posts going forward.




What's the Difference between Gold Plate and Gold Fill?
|
| Gold fill is 50 to 100,000 times thicker than regular gold plating, and about 17 to 25,000 times thicker than heavy gold electroplate. Similarly, silver fill is 100's of times thicker than a silver plating. |
What are Base Metals? |
| Base metal is a catch-all term in the jewelry industry for metals used in costume jewelry. In metal working, base metal is any metal that is not one of the noble or precious metals. In costume jewelry, base metals are often plated with a very thin layer of gold, silver, nickel, rhodium or other metal on the surface of the bead, finding, chain or other component.
Common base metals include:
Brass is an alloy of copper, zinc and sometimes other metals. It is typically 70% copper and 30% zinc. Our red brass wire is 90% copper, and 10% zinc, which gives it a slightly warmer color. Raw (unplated) brass components are usually the same color as yellow (plated) findings, although they will vary in color and may also work with gold plate. Their surfaces may be imperfect and their finish may change with age. Anti-tarnish brass (a proprietary alloy) looks very close to the color of 14kt gold. Another name for it is tarnish-resistant brass. Copper is an element that's bright reddish-orange in color. Over time, it will darken and gain a patina, sometimes with a greenish hue. Copper can also discolor skin, most commonly when it is worn snugly like a finger ring or tight-fitting bracelet. Copper is a soft metal, which makes it great for wire wrapping. Because of copper's softness, solid copper components are less durable than copper-plated beads and findings. Nickel silver is sometimes also called German silver. It is a base-metal alloy of nickel, copper and zinc. While nickel is silver in color, it does not contain any sterling silver. Nickel silver wire is 65% copper, 18% nickel, and 17% zinc. The relatively inexpensive cost of nickel silver compared with sterling makes it an attractive option for jewelry components. Just be aware that some people are allergic to nickel. Niobium is highly resistant to corrosion and other reactions, and is used in medical implants. Niobium jewelry findings come in several anodized colors. Anodizing is a way to color metal by dipping it into an electrically charged "bath" that creates bright colors without plating or painting the surface. The colors don't flake or chip like plated or painted surfaces can. The main drawback of anodized niobium is that it doesn't match basic silver and gold colors. On the upside, niobium is an inert element, with no nickel, lead, or other additives, most people with metal allergies can safely wear niobium. Pewter includes any of the numerous silver-gray alloys of tin with various amounts of antimony and copper. TierraCast products are made with a lead-free pewter called Britannia pewter, which consists of tin, antimony, and copper. Most TierraCast Britannia pewter beads and jewelry findings have a surface finish ( plating) of a different color over the pewter base. Other base-metal items marked "antiqued pewter" may be brass or zinc with an antiqued pewter plating. In nearly all cases, these zinc or brass alloys meet lead-free criteria. Steel is a blanket term for a wide variety of iron-based alloys that are very tough and hard. Cold-rolled steel is shaped when the metal is below its recrystallization temperature (usually room temperature). The metal is literally pressed between rollers in a mill to flatten and thin the steel. This cold processing method work hardens the metal and strengthens it up to 20% more than hot processing. It also creates a very smooth surface with a uniform finish. It allows for the creation of small products with great strength. AFNOR XC45 steel is a specific type of cold-rolled steel, and is a combination of XC45 and XC75 (AFNOR) steel — also known as 1045 steel and AISI 1078 steel, respectively. The alloy is a carbon steel with no nickel added, meaning it meets the strict standard of the EU Nickel Directive. Jewelry findings made of AFNOR XC45 steel include superior-quality French barrette backs and shoe clips. Stainless steel (a.k.a. corrosion-resistant steel) is a generic name for any steel alloy with a minimum of 11.5 wt% chromium. Common types or grades include 440, 304L, 316L and 904A. In all types of stainless steel, the chromium creates a very thin chromium-oxide layer on the surface of the metal which prevents it from rusting. The advantage of stainless steels over plated steels is that, if scratched or damaged, the stainless steel 'self-repairs' as a new chromium-oxide layer is formed. In plated steels, scratches in the plating can lead to corrosion of the steel underneath. In general, the higher percentage of chromium, the stronger the corrosion resistance of the steel. Other metals are added to the alloy to give the steel other properties, such as strength and malleability. Nickel is added to strengthen the protective oxide layer. Stainless steel findings are slightly more gray than white findings, but the difference is barely noticeable, especially on finished jewelry. Stainless steels do not match sterling or silver plate well. 304 stainless steel is the most popular grade of stainless steel. It is 18-20% chromium, 8-10.5% nickel, 0.08% carbon, plus iron and the trace elements listed above. It is commonly used in the food industry (sinks, coffee urns, dairy storage and hauling, beer/brewing, citrus and fruit juice handling, etc). The same corrosion and stain resistance that make it great for food handling, also make it popular for jewelry. 304L stainless steel is almost the same as 304, but has a lower carbon content (0.03%), and may contain a slightly higher amount of nickel (8-12%). This alloy has increased weldability and resistance to corrosion (great for men's jewelry). 430 stainless steel contains less than 0.75% nickel, and some forms of 430 stainless steel meet the EU nickel directive (less than .05% nickel ion migration). 430 stainless steel has good corrosion resistance compared to non-stainless steel, but not as good as the 304 and 316 alloys. This makes it less popular for jewelry than you would expect from its low nickel content. Surgical stainless steel is a specific type of stainless steel which, while wearable by the majority of the population, does contain a small amount of nickel (to which some people are allergic), usually 8% in jewelry. 316 and 316L surgical stainless steel contain 2-3% molybdenum for even greater resistance to harsh corrosives (both industrial, and in the body). 316L is a low carbon version of 316, with extra corrosion resistance, and is frequently used for stainless steel watches and marine applications. Like most other stainless steel, it contains 8-10.5% nickel, making it unsuitable for people with nickel allergies. Titanium is a very strong metal that's resistant to corrosion. Because of this, it's frequently used in medical implants, and it's an excellent choice for people with nickel allergies. Our titanium ear wires and earring posts are Grade 1 ASTM F67, which is unalloyed commercially pure titanium, and meets the EU Nickel Directive. "White metal" and "pot metal" are terms for tin-based alloys used in low temperature casting of base-metal jewelry components. White metal is the "silver" color that you most often see on costume jewelry and base-metal findings. White metal castings are usually three-dimensional rather than flat and are often plated. The exact composition of white metal varies, because each casting foundry and shop uses its own proprietary formula. Print this sheet and keep it handy when shopping for jewelry. Don't forget to call Anita ROKS by Analece, 251-929-3620, for all your Jewelry needs or shop online in my store! Hope this was helpful and answered many of your questions about metals! Peace, Anita |