Precision Brass CNC Machining
Brass has a uniform texture, low friction, good corrosion resistance, moderate strength and electrical conductivity. Its excellent machinability makes it well suited to precise, low-friction components.
Request a Brass Parts QuoteBrass CNC Machining Capability
A direct view of Weldo's published machining envelope and achievable dimensional capability for custom brass parts.
Final tolerances depend on part geometry, size, material grade and inspection requirements.
Common Brass Grades We Machine
Brass is primarily a copper-zinc alloy. Its composition divides the available grades into ordinary brass and special brass for different machining, strength and corrosion requirements.
Ordinary Brass
H96 · H90 · H85 · H80 · H70 · H68 · H65 · H62 · H59
- H96–H80: Good plasticity and corrosion resistance for radiators, tubing and decorative parts.
- H70 / H68: Balanced overall performance for complex stampings and electronic components.
- H65 / H62 / H59: Strength, machinability and cost balance for nuts, rivets, conduits and general mechanical parts.
Special Brass
HPb59-1 · HA177-2 · HMn58-2 · HSn62-1 · HSn70-1 · HSi80-3
- HPb59-1: Excellent machinability for valves and turned parts.
- HA177-2 / HSn series: Seawater corrosion resistance for marine and heat-exchange equipment.
- HMn58-2: Suited to corrosive environments and industrial transmission applications.
- HSi80-3: Combines wear resistance and castability for pipe fittings and marine components.
Why Use Brass Parts?
Brass combines easy cutting with stable dimensions, smooth finishes and useful corrosion resistance for prototypes and repeat production.
High Precision
CNC machining produces threads, micro-holes and complex features while brass ductility helps reduce cracking.
Excellent Surface Quality
Brass cuts to a smooth surface, reducing additional polishing for connectors and appearance parts.
Efficient Material Use
Low cutting forces reduce tool wear and waste, supporting efficient, cost-controlled batch production.
Corrosion Resistance
Brass performs well in many humid and chemical environments, helping extend service life and reduce maintenance.
Where CNC-Machined Brass Parts Are Used
Machinability, conductivity, finish quality and corrosion resistance make brass useful across precision commercial and industrial products.
Electronics
Connectors, terminals, switches and circuit-board pins.
Automotive
Sensor housings, fuel-system components, gears and decorative parts.
Medical Devices
Instrument handles, diagnostic-equipment parts and pneumatic connectors.
Architecture & Decoration
Door handles, lighting accessories and artistic components.
Fluid Control & Industry
Valves, pump bodies, pipe fittings and pressure-gauge accessories.
Brass Machining Questions
Quick answers about brass oxidation, material comparison and corrosion behavior.
Does brass turn green?
Yes. Moisture, air or certain chemicals can create a natural greenish patina. This protective surface layer does not weaken the material.
Is brass better than stainless steel?
It depends on the application. Brass machines faster, offers natural antimicrobial properties and can be more cost-effective. Stainless steel is stronger and better suited to high-temperature or heavy-load conditions.
Does brass corrode?
Brass has good general corrosion resistance and usually develops surface oxidation rather than deep rust. Saltwater or acidic conditions may cause dezincification, while alloyed grades such as naval brass improve resistance.
Send Your Drawing for a Machining Review
Upload a 2D drawing or 3D model with the brass grade, quantity, critical tolerances and finish requirements for quotation.
- STEP
- STP
- IGES
- X_T
- DWG