ROTO BLOG

Antimony is a metalloid with a long history and a modern strategic edge. With the symbol Sb and atomic number 51, it is brittle, silvery‑gray, and known for forming alloys that dramatically alter the properties of base metals. Unlike copper or aluminum, antimony is rarely used in pure form. Instead, its strength lies in how it transforms other materials—hardening lead, enhancing flame resistance, and stabilizing compounds that protect lives and infrastructure. The most familiar application …

Germanium is a rare metalloid that has quietly risen from scientific curiosity to strategic necessity. With the symbol Ge and atomic number 32, it sits just below silicon on the periodic table, sharing many of its semiconductor traits but offering unique advantages. Hard, brittle, and silvery‑gray, germanium has a melting point of 1,726°F (938°C) and resists oxidation, making it durable in demanding environments. Its ability to act as both conductor and insulator depending on conditions …

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/ …