ROTO BLOG

Gallium is a scientific curiosity turned strategic cornerstone. With a melting point of about 85.6°F (29.8°C), it can liquefy in a warm palm, yet it remains stable until an exceptionally high boiling point of roughly 4,357°F (2,403°C). That wide liquid range and unusual behavior—like wetting glass and expanding slightly when it solidifies—make gallium unlike most metals. It is not found as a pure element in nature; instead, it’s recovered as a by‑product from al …

Indium is one of those metals that rarely makes headlines, yet its presence is woven into the fabric of modern life. Soft enough to be cut with a knife and able to wet glass and ceramics, it has a melting point of just 313°F (156°C) but remains stable at far higher boiling temperatures. With the symbol In and atomic number 49, indium is classified as a post‑transition metal. It is not mined directly but recovered as a by‑product of zinc ore processing, which makes its availability depend …

At RotoMetals, we specialize in delivering advanced metals and alloys that help engineers and buyers meet the toughest industry demands. Today, we’re highlighting the role of low‑melting alloys—particularly bismuth‑based blends—in reshaping oil field completions. As a trusted source for custom formulations, RotoMetals supports well integrity and productivity with alloys designed for precision sealing and reliable performance. Whether the challenge is downhole isolation or plugg …

Grade 2 Babbitt has earned its reputation as one of the most dependable bearing materials in modern industry. Known for its anti‑friction qualities and ability to perform under high speeds and heavy loads, it has long been the go‑to choice for manufacturers who demand reliability. But even proven materials can evolve. By introducing a small percentage of nickel into the alloy, engineers have discovered a way to significantly improve hardness, fatigue strength, and wear resistance. This enhanceme …

At RotoMetals, our role as a supplier to the US Government and Military goes far beyond delivering materials—it’s about engineering protection for vital marine assets. Our zinc-based marine anodes are designed to meet the highest standards of corrosion resistance, helping safeguard naval vessels, commercial fleets, and industrial infrastructure operating in harsh saltwater environments. These anodes aren’t just components; they’re part of a larger mission to ensure reliab …

Low‑melting alloys are essential across a wide range of industries, from soldering delicate components to bending pipes cleanly around corners, and even securing optical lenses during grinding. Their ability to be processed at lower temperatures makes them particularly valuable when working with materials that could be damaged or react negatively to higher heat. By enabling manufacturing and casting at reduced temperatures, these alloys open the door to safer, more efficient production methods. …

When it comes to bullet casting, the choice of alloy plays a critical role in determining performance, accuracy, and safety. Each alloy offers a unique balance of hardness, castability, and expansion characteristics, making it essential for shooters and reloaders to understand the differences. RotoMetals, a trusted supplier in the casting community, offers a wide range of alloys tailored to various shooting applications. Among the most popular are Lyman #2, Linotype, Hardball, SuperHard, and tra …

THE CAST BULLET ASSOCIATION, INC. 48TH ANNUAL NATIONAL TOURNAMENT TOOK PLACE ON SEPTEMBER 6 & 7 IN RUTHERFORDTON, NC.  ROTOMETALS HAS BEEN A SPONSOR FOR YEARS. THANK YOU FOR LETTING US BE A PART OF YOUR EVENT! THERE WERE 37 SHOOTERS PARTICIPATING FROM ALL ACROSS THE UNITED STATES. CONTESTANTS WERE AWARDED PRIZES INCLUDING ROTOMETALS' HIGH QUALITY LEAD. DIRECT LINK TO OUR BULLET CASTING ALLOYS HERE - - - - -> https://www.rotometals.com/bullet-casting-alloys/ …

    In the May/June 2025 Issue, Rotometals was mentioned as well as our Tin Cut. The article was very intriguing and we are proud to have been mentioned.      Link to our Tin Cut - - - https://www.rotometals.com/tin-cut-wire-pieces-99-9-pure-1-pound-made-in-usa/     Link to the article - - -  https://www.americanhandgunner.com/ammo/handloading-makin-bullets/ …

Thinking of doing something interesting with zinc? You wouldn’t be the first. Pictured above is is in a room in the Winchester Mystery House, in San Jose, CA with a beautiful zinc planter that we captured on one of their main tours there recently.Sarah Winchester, the heiress of the famous gun maker, built the world-famous historical landmark Winchester Mystery House starting in 1886. She was having rooms added and renovations make right up until 1922, when she passed.We don’t know exactly when …