Brass CNC Machining Services
Equipped with industry-leading CNC equipment and a senior technical team, we specialize in precision machining of copper, balancing exceptional accuracy with high-efficiency production. Whether for prototype development or mass production, we can precisely meet your technical standards, delivering consistently high-quality, high-performance parts.
Brass
Golden aesthetic, good machinability, moderate corrosion resistance, often used for decorative hardware.
-
Price:$0
-
Lead Time:< 7 days
-
Wall Thickness:0.75 mm
-
Tolerances:±0.005″ (±0.125mm)
-
Max Part Size:200 cm x 80 cm x 100 cm
Brass H59
A cost-effective brass alloy with 59% Cu and 41% Zn, offering moderate strength and machinability.
Suitable Processes: Hot forging, Sheet metal stamping, CNC machining.
Applications: Hardware fittings, plumbing components, and structural parts requiring cost-effective brass solutions.
| Tensile Strength, Yield (MPa) | Fatigue Strength (MPa) | Elongation at Break (%) | VHardness (Brinell) | Density (g/cm³) |
|---|---|---|---|---|
| 180 | 120-150 | 25 | 100-163HB | 8.4 |
Brass H62
A versatile brass alloy (60-63% Cu, Zn balance) with balanced strength and ductility.
Suitable Processes: Cold working, deep drawing, soldering.
Applications: Locks, hinges, electrical connectors, and radiator cores.
| Tensile Strength, Yield (MPa) | Fatigue Strength (MPa) | Elongation at Break (%) | VHardness (Brinell) | Density (g/cm³) |
|---|---|---|---|---|
| 250-350 | 140-170 | ≥2.5~35 | 80-115HB | 8.5 |
Brass H63
A brass variant (62-65% Cu) with improved corrosion resistance for marine environments.
Suitable Processes: Extrusion, welding, polishing.
Applications: Marine hardware, decorative trim, and musical instruments.
| Tensile Strength, Yield (MPa) | Fatigue Strength (MPa) | Elongation at Break (%) | VHardness (Brinell) | Density (g/cm³) |
|---|---|---|---|---|
| 240-400 | 2.5~35% | ≤187HB | 8.4~8.7 |
Brass H65
A high-ductility brass (64-67% Cu) ideal for precision forming.
Suitable Processes: Spinning, bending, stamping.
Applications: Cartridge casings, springs, and flexible hoses.
| Tensile Strength, Yield (MPa) | Fatigue Strength (MPa) | Elongation at Break (%) | VHardness (Brinell) | Density (g/cm³) |
|---|---|---|---|---|
| 200-300 | 160-190 | ≥4~40 | 50~80HB | 8.4~8.7 |
Brass H68
A deep-drawing brass (67-70% Cu) with excellent fatigue resistance.
Suitable Processes: Deep drawing, annealing, CNC turning.
Applications: Radiator fins, battery caps, and ammunition casings.
| Tensile Strength, Yield (MPa) | Fatigue Strength (MPa) | Elongation at Break (%) | VHardness (Brinell) | Density (g/cm³) |
|---|---|---|---|---|
| 205 | 180-220 | 10~15 | 90~120HB | 8.5 |
Brass H70
A cold-working brass (69-72% Cu) with superior surface finish capabilities.
Suitable Processes: Roll forming, etching, plating.
Applications: Electronic shielding, jewelry, and precision gears.
| Tensile Strength, Yield (MPa) | Fatigue Strength (MPa) | Elongation at Break (%) | VHardness (Brinell) | Density (g/cm³) |
|---|---|---|---|---|
| 205 | 130-160 | 18~43 | 100~150HB | 8.5 |
Brass H80
A high-strength brass (79-81% Cu) with wear resistance.
Suitable Processes: Casting, machining, grinding.
Applications: Bearings, bushings, and heavy-duty valve components.
| Tensile Strength, Yield (MPa) | Fatigue Strength (MPa) | Elongation at Break (%) | VHardness (Brinell) | Density (g/cm³) |
|---|---|---|---|---|
| 220~350 | ≥30 | 80~120HB | 8.4~8.7 |
Brass H90
A near-red brass (89-91% Cu) with thermal conductivity close to pure copper.
Suitable Processes: Brazing, hot forming, engraving.
Applications: Heat exchangers, coinage, and artistic engravings.
| Tensile Strength, Yield (MPa) | Fatigue Strength (MPa) | Elongation at Break (%) | VHardness (Brinell) | Density (g/cm³) |
|---|---|---|---|---|
| 280~400 | 90-120 | ≥30 | 40~100HB | 8.4~8.7 |
Brass H96
A high-purity brass (95-97% Cu) with exceptional electrical conductivity.
Suitable Processes: Wire drawing, EDM, polishing.
Applications: Electrical waveguides, conductive springs, and premium decorative items.
| Tensile Strength, Yield (MPa) | Fatigue Strength (MPa) | Elongation at Break (%) | VHardness (Brinell) | Density (g/cm³) |
|---|---|---|---|---|
| 300~450 | ≥45 | 80-120 HB | 8.4~8.7 |
Surface Finishing Options for Brass
Brass CNC turned parts can undergo various surface finishing processes to enhance their appearance, durability, and performance.
- As Machined
- Alodine
- Black Oxide
- Electroless Plating
- Heat Treatment
- Knurling
- Polishing
- Sand blasting
Surface Finishes We Offer
Since magnesium parts are prone to machining defects and formation of burrs, it’s important to treat them with the right surface finishes.
This will improve their aesthetic appeal and enhance performance and longevity. At RapidDirect, we offer an extensive range of surface finishing options tailored to your requirements,
ensuring optimal protection and visual quality for your magnesium parts.
This will improve their aesthetic appeal and enhance performance and longevity. At RapidDirect, we offer an extensive range of surface finishing options tailored to your requirements,
ensuring optimal protection and visual quality for your magnesium parts.
-
As MachinedDescription: Standard finish with surface roughness of 3.2 μm (126 μin), removes sharp edges and deburrs parts cleanly. Key Use: Functional parts requiring no post-processing (e.g., brackets, gears). Process Tolerance: Dimensional ±0.1 mm, Ra 3.2±0.5 μm Process Specifications: ISO 2768-m standard, burr height ≤0.05 mm
-
AlodineDescription: Chemical film for corrosion protection and paint adhesion. Process Compatibility: Post-cleaning chemical immersion Key Use: Aviation and automotive electrical housings. Process Tolerance: Film thickness 0.5-3 μm, visual uniformity Process Specifications: Immersion time 3-10 min, bath temp. 20-30℃
-
Black OxideDescription: Thin magnetite layer for corrosion resistance and reduced glare. Process Compatibility: Post-machining chemical treatment Key Use: Tools, firearms, automotive fasteners. Process Tolerance: Coating thickness 0.5-1.5 μm, salt spray ≥24 hrs Process Specifications: Alkaline bath pH 13-14, process time 5-30 min
-
Electroless PlatingDescription: Uniform metal coating (e.g., nickel) without electricity. Process Compatibility: Chemical bath deposition Key Use: Wear-resistant industrial valves, connectors. Process Tolerance: Coating thickness 5-50 μm±5%, porosity ≤5/cm² Process Specifications: Bath temp. 85-95℃, pH 4.5-5.5
-
Heat TreatmentDescription: Thermal process to alter material hardness/toughness. Process Compatibility: Post-machining quenching/tempering Key Use: Gears, cutting tools. Process Tolerance: Hardness HRC 45-60±2, distortion ≤0.1% Process Specifications: Quench temp. 800-1000℃, temper time 1-4 hrs
-
KnurlingDescription: Diamond or linear pattern for improved grip. Process Compatibility: CNC lathe rolling Key Use: Handles, adjustment knobs. Process Tolerance: Pattern depth 0.2-0.5 mm, pitch ±0.05 mm Process Specifications: Roller pressure 200-500 N, feed 10-50 mm/min
-
PolishingDescription: Mirror-like finish via abrasive compounds. Process Compatibility: Manual/robotic buffing Key Use: Medical instruments, luxury fixtures. Process Tolerance: Ra 0.025-0.1 μm, gloss ≥90 GU Process Specifications: Wheel speed 1000-3000 rpm, compound grit 2000-5000
-
Sand blastingDescription: Abrasive jet finish for uniform matte texture. Process Compatibility: Post-machining blasting Materials: Metals, glass, stone Key Use: Architectural facades, engine blocks. Process Tolerance: Ra 1.6-6.3 μm, coverage ≥95% Process Specifications: Grit size 80-120, air pressure 0.4-0.7 MPa
Pros
- Exceptional Machinability: Brass is highly machinable, allowing for precise and efficient machining.
- Corrosion Resistance: It offers high resistance to corrosion, making it suitable for harsh environments.
- Aesthetic Appeal: Its appearance is attractive and ideal for decorative and aesthetic applications.
- Good Conductivity: Brass has excellent thermal and electrical conductivity.
- Versatility: Brass can also be used in various industries, from electronics to plumbing.
Cons
- Flexibility: Easily deforms under mechanical stress, making it difficult to maintain high-precision dimensional tolerances.
- Adhesion: Tends to adhere to the tool during machining, affecting workpiece surface quality and accelerating tool wear.
- High Cost: Raw material and overall processing costs are significantly higher than common structural metals.
- High Thermal Expansion: Significantly affected by temperature changes, potentially causing dimensional fluctuations, requiring compensation during machining and assembly.
Applications of CNC machining of copper parts
copper parts primarily utilizes the unique physical properties of copper alloys, playing an irreplaceable role in demanding functional applications. Unlike aluminum alloys, which prioritize lightweighting and structural strength, CNC machining focuses on electrical and thermal conductivity, corrosion resistance, and aesthetic decoration.
The following are the core application areas for CNC-machined copper parts:
Electrical Engineering: Wiring, connectors, and circuit components.
Thermal Management: Heat exchangers, radiators, and heat sinks.
Automotive: Radiators, electrical systems, and sensor components.
Aerospace: High-performance electrical connectors and thermal management systems.
Medical: Surgical instruments and imaging equipment.
Our Partners
Trusted by 12,000+ businesses
