Brass
Golden in color, uniform texture, easy to machine, low friction, good corrosion resistance, moderate strength, electrically conductive, mainly used in low-friction applications.
Other brass types available in Weldo: Free-cutting brass (C360), leaded brass, high-strength brass, naval brass, silicon brass.
Capability of brass cnc machining in Weldo
Maximum machining size: 2000mm*1000mm*1000mm
Minimum machining size: 5mm*5mm*5mm
Minimum machining diameter: 0.5mm
Minimum tolerance: ±0.01mm
Standard roundness tolerance: ±0.01-0.03mm
Precision roundness tolerance: ±0.003mm
Common classifications of brass material
Brass is a copper alloy with copper (Cu) and zinc (Zn) as the main alloying element. According to different compositions and applications, brass is mainly divided into two categories: ordinary brass and special brass.
Ordinary brass includes : H96, H90, H85, H80, H70, H68, H65, H62, and H59:
High-copper-content grades such as H96–H80 have excellent corrosion resistance and good plasticity, and are suitable for radiators, tubing, and decorative parts.
H70 and H68 have excellent overall performance and are widely used for complex stamping parts and electronic components.
H65, H62, and H59 achieve a balance between strength, machinability, and cost, and are commonly used for nuts, rivets, conduits, and general mechanical parts.
Special brass is formed by adding other alloying elements, includes lead brass HPb59-1, aluminum brass HA177-2, manganese brass HMn58-2, tin brass HSn62-1, HSn70-1, and silicon brass HSi80-3.
Lead brass HPb59-1 has excellent machinability and is suit for valve components and turned parts.
Aluminum brass HA177-2 and tin brass HSn series have excellent seawater corrosion resistance and used in ships and heat exchange equipment.
Manganese brass HMn58-2 is suitable for high-corrosion and industrial transmission environments.
Silicon brass HSi80-3 combines wear resistance and castability and used for pipeline fittings and ship components.
Advantage of cnc machining brass parts
High Precision & Complex Geometry
CNC enables micron-level accuracy for complex features like threads and micro-holes. Brass ductility prevents cracking, ensuring stable dimensions.
Excellent Surface Quality
Brass machining produces smooth surfaces suitable for direct use, reducing polishing needs. Ideal for connectors and high-finish components.
High Material Utilization
Easy machining lowers cutting force, tool wear, and waste. Well-suited for mass production with improved efficiency and cost savings.
Corrosion Resistance & Long Lifespan
Naturally corrosion-resistant, brass performs well in humid or chemical environments, extending service life and reducing maintenance costs.
Application of brass part
Electronics Industry
Applications: Connectors, terminals, switches, circuit board pins.
Automotive Industry
Applications: Sensor housings, fuel system components, gears, decorative parts.
Medical Devices
Applications: Surgical instrument handles, diagnostic equipment parts, pneumatic tubing connectors.
Architecture and Decoration
Applications: Door handles, lighting accessories, artistic sculptures.
Fluid Control and Industrial Equipment
Applications: Valves, pump bodies, pipe fittings, pressure gauge accessories.
FAQ of brass mateiral
Does brass turn green?
Yes, brass can develop a greenish patina over time. This is a natural oxidation reaction caused by exposure to moisture, air, or certain chemicals. The patina is a protective layer and does not weaken the material.
Is brass better than stainless steel?
Brass is not universally better than stainless steel — it depends on the application. Brass machines faster, has better machinability, offers natural antimicrobial properties, and is more cost-effective. Stainless steel is stronger, more durable, highly corrosion-resistant, and better for high-temperature or heavy-load environments.
Does brass corrode?
Brass does corrode, but it has good general corrosion resistance. It mainly undergoes surface oxidation (forming patina) rather than deep rust like steel. It may experience dezincification in harsh environments such as saltwater or acidic conditions, but alloyed brass (such as naval brass) can significantly improve corrosion resistance.