Brass Machining and Fabrication in Canton, OH: C360, C260, and Naval Brass

C360 free-machining brass (UNS C36000) is the benchmark for machinability across all engineering metals -- it is the material against which machinability ratings are calibrated, assigned an index of 100 percent. The combination of lead additions (approximately 2.5-3.5 percent) and the alpha-beta brass microstructure produces short, breaking chips that clear automatically, allow high cutting speeds (up to 500-800 SFM on carbide tooling), and generate excellent surface finish without polishing operations. A shop running C360 on a CNC Swiss-type lathe can produce complex connector bodies, fittings, valve stems, and precision hardware at cycle times that make brass the economics benchmark for precision turned parts. Canton shops that run automotive and hydraulic components have qualified C360 processes for the fluid system fittings, electrical connector housings, and instrument hardware that appear throughout their customers' product lines. The northeast Ohio automotive supply chain consumes substantial quantities of brass fittings -- coolant system connectors, vacuum line fittings, and sensor housings -- where C360's machinability, dimensional consistency, and corrosion resistance in non-aggressive environments make it the default specification over more expensive materials. For procurement teams, the practical advantage of sourcing brass machined parts from Canton is that the regional job shop ecosystem handles brass as a standard production material, not a specialty. Shops maintain C360 bar stock in the common diameter ranges (0.25 inch through 3 inch in 1/16-inch increments for precision turned parts), run it on equipment optimized for non-ferrous cutting, and produce PPAP-quality dimensional records with the same rigor applied to automotive steel components.

C260 cartridge brass (UNS C26000, 70 percent copper / 30 percent zinc) derives its name from the ammunition industry, which has used deep-drawn brass cartridge cases as the canonical example of the grade's forming characteristics for over a century. The 70/30 composition produces a single-phase alpha microstructure with exceptional ductility -- elongation exceeding 60 percent in the annealed condition -- that allows severe cold working operations including deep drawing, spinning, and bending without cracking. This makes C260 the standard specification for formed brass components: heat exchanger fins, flexible hose fittings, stamped brackets and clips, and any application where complex geometry must be achieved through forming rather than machining. Canton's stamping and forming shops, developed primarily for automotive steel work, handle C260 brass sheet and strip for customers requiring formed copper-alloy components. The tooling design principles carry over from steel stamping with adjustments for brass's different springback characteristics and the softer tooling loads that come with a ductile non-ferrous material. Progressive die stampings in C260 for electrical connector housings, terminal clips, and hardware stampings are produced in the region for automotive and industrial customers. From a corrosion standpoint, C260 performs well in atmospheric and fresh water service but is susceptible to dezincification (selective leaching of zinc from the alloy) in certain aggressive water chemistries, particularly soft water with low pH. For plumbing fittings or components in contact with aggressive water, the dezincification-resistant grades (Naval brass or DZR-treated alloys) are the appropriate specification upgrade.

Naval brass (UNS C46400, approximately 60 percent copper, 39 percent zinc, 1 percent tin) is the corrosion-resistant brass grade developed for marine service, where seawater exposure and the dezincification resistance of standard C260 is inadequate. The tin addition provides meaningful improvement in dezincification resistance and slightly improves strength compared to C260, making Naval brass the standard specification for marine hardware: propeller shafts, marine pump components, seacock bodies, and hardware that must survive long-term saltwater immersion or spray exposure. In the northeast Ohio industrial context, Naval brass finds application beyond literal marine use: anywhere that aggressive water chemistry, chemical process exposure, or outdoor weathering service pushes the corrosion requirements beyond what standard 70/30 brass can reliably handle. Industrial valve bodies for chemical process service, outdoor hydraulic fittings on construction and agricultural equipment, and plumbing components in water treatment facilities may specify Naval brass for its combination of machinability, strength, and corrosion performance. Naval brass machines nearly as well as C360 in rod and bar form, with machinability ratings typically around 70-80 percent relative to C360's 100 percent benchmark. It is available in bar, plate, and tube forms from northeast Ohio service centers, though not always in the depth of inventory that C360 carries. For production programs requiring Naval brass, confirming stock availability and lead times from regional distributors is a practical first step before committing to the grade in a design.