🟡 BRASS
Brass Components & Machining in Salt Lake City, UT
Brass is the metal Salt Lake City's screw machine and CNC shops love, because it cuts faster and cleaner than almost anything else they run. Fittings, valves, fluid-path components, fasteners, and electrical connectors all come out of brass at high volume and tight tolerance, feeding the region's medical, defense, and energy customers. Here is what local buyers need to know about the three brass grades they specify most and where each one fits.
ISO 9001ISO 13485
Brass and High-Volume Precision Machining
Brass occupies a special place in any precision machine shop because of how beautifully it cuts. The free-machining grades, led by C360, let shops run high spindle speeds and feeds with excellent chip breaking, long tool life, and superb surface finishes, which means parts come off the machine fast and clean. For Salt Lake City shops producing fittings, valve bodies, connectors, and fluid-path components at volume, that machinability translates directly into competitive cost and reliable quality.
The region's medical device cluster uses brass for fluid-handling components, fittings, and mechanical parts where its machinability, moderate corrosion resistance, and natural antimicrobial properties are useful. Defense and electronics work pulls brass into connectors, fasteners, and housings, while energy and plumbing-adjacent applications rely on it for valves and fittings. Across all of these, brass earns its place by being easy to machine to tight tolerance and dependable in service.
Because brass is a copper-zinc alloy, it also carries reasonable electrical conductivity and good corrosion resistance, giving designers a versatile material that bridges mechanical and electrical roles. Local shops keep the common grades on hand because brass jobs flow through their machines constantly.
Picking the Grade: C360, C260, and Naval Brass
C360 free-cutting brass is the benchmark for machinability, often used as the 100 percent reference against which other materials' machinability is rated. With roughly 3 percent lead added to a copper-zinc base, C360 produces small broken chips and lets shops run very high material removal rates with excellent finishes. It is the default for screw-machine and CNC-turned parts: fittings, valve components, fasteners, nozzles, and threaded hardware produced in volume. If a part is going to be turned on a high-speed machine, C360 is usually the first grade considered.
C260 cartridge brass trades some machinability for much better formability. As a 70-30 copper-zinc alloy, it is highly ductile and excels at cold forming, deep drawing, stamping, and spinning, which makes it the choice for formed components, enclosures, ammunition cases, terminals, and parts shaped rather than machined. Its higher copper content also gives it better corrosion resistance than the lead-bearing free-machining grades, and it offers good electrical conductivity for connector and terminal work.
Naval brass adds a small amount of tin to a copper-zinc base specifically to resist dezincification and corrosion in marine and saltwater environments. While Salt Lake is landlocked, naval brass still earns specification where components face brine, aggressive water chemistry, or corrosive process media, and it offers good strength along with that improved corrosion resistance. It machines and fabricates reasonably and serves well in valve, fitting, and hardware applications that demand more corrosion durability than standard brass.
Lead-Free Considerations and Finishing
A growing factor in brass selection is lead content. Traditional free-machining brass like C360 contains lead to achieve its machinability, but regulations on lead in potable water systems and certain consumer and medical applications have pushed many designs toward low-lead and lead-free brass alternatives. Salt Lake shops serving plumbing, medical, and drinking-water-contact applications increasingly work with these lead-free grades, which machine somewhat less freely than C360 but meet the regulatory requirements. Buyers should clarify early whether their application falls under lead-content restrictions, because that decision drives both material choice and machining strategy.
For most industrial, electrical, and non-potable applications, standard C360 remains the efficient choice, and its machinability advantage is significant enough that designers stick with it wherever regulations allow. The key is matching the grade to the regulatory and corrosion environment up front rather than discovering a lead-content problem during qualification.
Finishing brass is generally straightforward. It takes plating well, including nickel, chrome, and tin, for appearance, corrosion protection, or solderability, and it can be polished to an attractive finish or left natural. For electrical connectors and contacts, plating maintains reliable surface conductivity, while for fittings and hardware, finishing is often about corrosion protection or cosmetics. Local finishers support the common brass plating and polishing processes the region's parts require.
Frequently Asked Questions
C360 free-cutting brass is so machinable that it serves as the industry's 100 percent benchmark, the reference point against which other materials' machinability ratings are set. The reason is its composition: a copper-zinc base with roughly 3 percent lead added. The lead acts as a chip breaker and internal lubricant, so the material produces small, broken chips instead of long stringy ones, generates low cutting forces, and yields excellent surface finishes with long tool life. That lets Salt Lake shops run very high spindle speeds and feed rates, producing fittings, valve components, fasteners, and threaded hardware quickly and cleanly. For high-volume screw-machine and CNC turning work, that efficiency translates directly into lower cost and consistent quality. The main caveat is the lead content, which means C360 may not be acceptable for potable-water or certain medical applications subject to lead-content regulations, in which case a lead-free brass alternative is required even though it machines less freely.
Choose C260 cartridge brass when the part is formed rather than machined. C260 is a 70-30 copper-zinc alloy with excellent ductility, which makes it ideal for cold forming operations like deep drawing, stamping, spinning, and bending. That is why it is the traditional choice for ammunition cases, formed enclosures, electrical terminals, and any component shaped from sheet or strip rather than turned from bar. Its higher copper content also gives it better corrosion resistance than the lead-bearing free-machining grades and good electrical conductivity for connector and terminal work. C360, by contrast, is optimized for high-speed machining, not forming, and its lead content makes it relatively brittle for deep forming. So the decision comes down to the manufacturing process: reach for C360 when you are turning or milling parts from bar at volume, and C260 when you are forming, drawing, or stamping the part from sheet or strip. Matching the grade to the process is what keeps both cost and quality where you want them.
Quite possibly, and you should clarify it before sourcing. Traditional free-machining brass like C360 contains roughly 3 percent lead to achieve its excellent machinability, but regulations restrict lead content in potable water systems and certain medical and consumer applications. If your component contacts drinking water or falls under medical lead-content requirements, you will likely need a low-lead or lead-free brass grade. These alternatives meet the regulatory limits but machine somewhat less freely than C360, which affects machining strategy and cost. For Salt Lake shops serving plumbing, drinking-water, and applicable medical work, lead-free brass is increasingly standard. The key is to determine early whether your application is subject to lead-content restrictions, because that decision drives material selection from the start. For industrial, electrical, and non-potable applications not covered by these rules, standard C360 remains the efficient choice and its machinability advantage is usually worth keeping wherever regulations allow.
Naval brass earns its place even far from the ocean because the corrosion threat it addresses, dezincification, occurs anywhere brass meets aggressive water chemistry, not just seawater. Naval brass adds a small amount of tin to the copper-zinc base specifically to resist dezincification, the selective leaching of zinc that can hollow out and weaken ordinary brass in corrosive aqueous environments. In Salt Lake applications, that matters for components exposed to brine, hard or chemically aggressive water, certain process media, or geothermal and energy fluids that would attack standard brass over time. Naval brass also offers good strength along with its improved corrosion resistance and machines and fabricates reasonably well, making it a solid choice for valve bodies, fittings, and hardware that need more corrosion durability than C360 or C260 can provide. So even landlocked, if your component faces water chemistry harsher than ordinary plumbing, naval brass or another dezincification-resistant grade is worth specifying to ensure long service life.
Last updated: July 2026
Find Brass Manufacturers in Salt Lake City, UT
Search verified Salt Lake City shops that work in Brass.
No logins. No email gates. Just results.