The fastest metal
in our shop.
C360 runs like butter.
Brass C360 machines 3× faster than stainless and 2× faster than aluminum. Combined with excellent corrosion resistance, self-lubrication and a beautiful gold finish — brass is the economical choice for fittings, electrical contacts, and decorative hardware.
Brass grades.
Three brass alloys cover nearly every machined application. The choice is driven by lead content, machinability, and corrosion environment.
C360 (Free-Cutting)
63 Cu / 35.5 Zn / ~3 Pb. The machinability reference — defined as 100%. Fittings, electrical contacts, hardware, plumbing. Lead content restricts potable water use in some jurisdictions.
C260 (Cartridge)
70 Cu / 30 Zn. Excellent cold formability — origin of the "cartridge" name from ammunition brass. Less machinable (30% MR) but superior for stamping and drawing.
C464 (Naval Brass)
60 Cu / 39 Zn / 1 Sn. Tin addition resists dezincification in seawater. Marine hardware, boat fittings, heat exchanger tubes.
C230 (Red Brass)
85 Cu / 15 Zn. Warmer reddish-gold color. Architectural and decorative applications. Good corrosion resistance.
C377 (Forging Brass)
58 Cu / 40 Zn / 2 Pb. Optimized for hot forging of plumbing fittings, valves, compression fittings.
C353 (High-Leaded)
62 Cu / 36 Zn / 2 Pb. Used for high-volume Swiss-type turning. Excellent surface finish from single-point tooling.
Why choose brass.
Brass dominates three scenarios. For any of them, brass is usually the most economical choice.
Fastest machining
C360 defines 100% machinability rating. 2–3× faster than 304 SS, 2× faster than aluminum. Perfect for high-volume turned parts.
Corrosion resistance
Develops dark patina in outdoor service but resists corrosion in most water, air and mild chemical environments. C464 resists seawater dezincification.
Electrical conductivity
~28% IACS — good electrical conductor. Standard for connectors, terminals, battery contacts where copper's machinability is inadequate.
Non-sparking
Non-ferrous metal won't spark against steel. Required for tools and hardware in explosive atmospheres (ATEX zone 1, 2).
Brass applications.
Plumbing fittings
Valves, compression fittings, pipe adapters (C360, C377)
Electrical connectors
Terminal blocks, ground studs, battery lugs — tin or nickel plated
Decorative hardware
Door knobs, hinges, decorative fasteners — lacquered to prevent patina
Musical instruments
Trumpet valves, horn slides, tuba components — C260 cartridge
Firearms parts
Cartridge casings (C260), shell holders, reloading equipment
Marine hardware
Boat cleats, ship portholes, rigging — C464 naval brass
Watch components
Gears, cases (before plating), movement plates — precision Swiss turned
Lamp & lighting
Lamp bases, sockets, decorative fixtures — lacquered finish
Automotive
Carburetor components, radiator fittings, electrical terminals
Brass finishing.
As-machined
Bright gold color. Tarnishes in weeks from handling (fingerprints) unless lacquered.
Lacquered
Clear lacquer preserves bright finish indefinitely. Standard for decorative hardware.
Polished
Mirror polish to Ra 0.05 µm. Common on architectural and decorative brass.
Bead blasted
Matte uniform finish. Often pre-plating step.
Nickel plated
Bright or satin nickel. Silver appearance, corrosion resistance. Standard for electrical.
Chrome plated
Decorative bright chrome for bathroom fixtures, automotive trim.
Gold plated
Flash or heavy gold for RF connectors, luxury hardware, watch components.
Antiqued / patina
Chemical patination to aged gold, dark bronze, or verdigris green for architectural.