Brass stands alone as the most machinable metal available—period. An alloy of copper and zinc, brass perfectly balances exceptional machinability, low friction properties, electrical and thermal conductivity, and natural corrosion resistance. Whether you’re producing plumbing fittings, electrical connectors, precision gears, or decorative hardware, brass delivers superior results at minimal cost. Its golden aesthetic adds premium value to consumer-facing products, while its low-friction coefficient keeps mechanical assemblies running smoothly. With over a decade of brass machining expertise, AluCarbon Tech leverages brass’s exceptional properties to deliver rapid turnaround, tight tolerances, and minimal tool wear—maximizing your production efficiency and ROI.
Brass alloys are copper-zinc combinations engineered for specific performance requirements. Selection depends on balancing machinability, strength, electrical conductivity, corrosion resistance, and cost. Choosing the right grade ensures optimal component performance and maximum manufacturing efficiency.
| Alloy Grade | Composition & Properties | Die besten Anwendungen | Bearbeitbarkeit |
|---|---|---|---|
| C360 / C36000 (Free-Cutting) |
60% copper, 39% zinc, 1% lead. Industry standard for CNC machining. Machinability rating: 100% (benchmark). Excellent chip control, rapid tool change capability. | Gears, valve stems, screw machine parts, plumbing fittings, fasteners, automation components, high-volume production | Exceptional fastest speeds, longest tool life, ideal for high-volume production. Minimum tool wear. |
| C260 / C26000 (Cartridge Brass) |
70% copper, 30% zinc. Good ductility, excellent formability, superior corrosion resistance. Machinability rating: ~30-40% of C360. | Ammunition casings, decorative hardware, radiator cores, rivets, hinges, consumer products, components requiring forming | Gut slower than C360 but still excellent compared to other metals. Better corrosion resistance. |
| C350 / C35300 (Medium High-Zinc) |
65% copper, 35% zinc. Good machinability, moderate strength, excellent corrosion resistance. | Structural components, mechanical parts, decorative fixtures, architectural hardware, load-bearing applications | Gut maintains strong machining capability while offering increased strength for structural requirements |
| C378 (High-Strength Brass) |
58% copper, 42% zinc (high-zinc alloy). Superior strength than C360. Good machinability. Higher strength for demanding applications. | Structural components, mechanical parts, high-strength fasteners, high-volume production requiring moderate strength | Gut excellent machinability with significantly increased strength vs C260/C350 grades |
| Naval Brass | Copper-zinc-tin alloy (typically 60% Cu, 38% Zn, 1% Sn). Exceptional corrosion resistance in marine environments. Good strength. | Marine equipment, submarine components, coastal infrastructure, shipboard fittings, seawater-resistant applications | Mäßig requires tool management but excellent results in marine applications. Worth investment for harsh environments. |
| C385 (Medium-Lead Brass) |
58% copper, 39% zinc, 2-3% lead. Excellent machinability (lead boost), good toughness, excellent corrosion resistance. | High-precision fasteners, mechanical components, complex screw machine parts, demanding precision work | Ausgezeichnet lead content boosts machinability beyond standard C360. Ideal for precision requirements. |
Brass dominates CNC manufacturing for exceptional reasons. Its unique combination of properties delivers unmatched production advantages:
Brass machines faster than any other common metal. Lead content (in free-cutting grades) reduces friction, enabling spindle speeds to 10,000+ RPM, high feed rates, and excellent chip evacuation. Result: shortest cycle times, minimal tool wear, lowest per-unit cost. C360 is the industry 100% machinability benchmark.
Brass's exceptional machinability translates directly to cost savings. Rapid production, minimal tool changes, reduced labor time, and exceptional tool life all combine. Per-part costs are typically 30-40% lower than aluminum or stainless steel for equivalent complexity.
Brass naturally produces clean chip formation and excellent surface finishes straight from the machine. Often no secondary polishing needed—direct savings in finishing costs. Many applications accept as-machined finish, eliminating post-processing entirely.
Brass's naturally low friction coefficient makes it ideal for moving parts, gears, bearings, valves, and sliding surfaces. Wear resistance extends component lifespan significantly without additional coatings—critical for rotating and mechanical assemblies.
Copper content provides outstanding electrical and thermal conductivity. Combined with natural corrosion resistance, brass is ideal for electrical connectors, thermal management components, and applications exposed to moisture or marine environments.
Advanced 3-axis, 4-axis, and 5-axis mills with high-speed spindles (10,000+ RPM) optimized for brass's superior machinability. Multi-axis capability enables complex geometries in minimal setups, reducing production time and cost. Ideal for intricate gears, connectors, decorative components, and precision mechanical assemblies.
Swiss-style screw machines and precision turning centers excel with brass for high-volume production of cylindrical components. Brass's natural chip evacuation and low friction enable aggressive speeds and optimal surface finish. Perfect for fasteners, valve stems, bushings, shafts, and other precision rotating components.
Polishing, buffing, decorative finishes, nickel plating, gold plating, and specialty coatings available in-house. Brass accepts finishing processes readily. No outsourcing delays—all capabilities under one roof for consistency and speed.
| Branche | Wichtige Komponenten | Why Brass |
|---|---|---|
| Plumbing & Fluid Systems | Valve bodies, threaded fittings, manifolds, pump housings, water distribution components, fluid control systems | Brass is corrosion-resistant in water systems, provides low-friction smooth operation, machines precisely for tight fittings, and is cost-effective for high-volume plumbing production |
| Aerospace & Military | Hydraulic valves, landing gear bushings, electrical connectors, spark-resistant components, fuel system fittings | Brass's spark-resistant (non-sparking) properties essential in flammable gas environments. Excellent corrosion resistance meets aerospace standards. Superior precision machinability ensures reliability. |
| Electrical & Electronics | Connectors, terminal contacts, conductor fittings, socket housings, heat-dissipating components, circuit board fixtures | Exceptional electrical and thermal conductivity ideal for power transmission. Natural corrosion resistance. Achieves tight tolerances easily for critical electrical connections. |
| Automotive & EV Systems | Radiator fittings, battery terminal connections, fuel system components, EV charging connectors, transmission fittings | Low friction for mechanical efficiency. Thermal conductivity essential for EV power management. Corrosion resistance for underbody components. Cost-effective for high-volume automotive production. |
| Mechanical & Robotics Equipment | Gears, bushings, bearings, mechanical seals, automation fittings, precision fasteners, pinions | Low-friction properties reduce wear dramatically. Exceptional machinability enables precise gear teeth and complex geometries. Cost-effective for mass production of moving components. |
Brass's exceptional machinability makes achieving tight tolerances straightforward and cost-effective. AluCarbon Tech maintains rigorous quality protocols ensuring consistency, precision, and repeatability:
Brass CNC machining cost is influenced by: Brass alloy selected (C360 most cost-effective; C260, C350 slightly higher; Naval Brass premium), part complexity and geometry, tolerance requirements, production volume, surface finish requirement, and plating or decorative finishing.
AluCarbon Tech provides precision CNC machining services for brass, copper, aluminum, stainless steel, titanium, and specialty metals. We serve plumbing, aerospace, electrical, automotive, medical, mechanical, robotics, and industrial sectors globally with fast turnaround, expert machining, in-house finishing, and cost-effective production.
