Apr. 17, 2026
What Is Brass? Brass Alloy Composition and CNC Machining Applications
Brass is one of the most widely used metal materials in industrial and commercial applications. Known for its excellent machinability, corrosion resistance, and durability, brass is commonly used in plumbing systems, fittings, connectors, and precision machined parts.
Understanding what brass is, its alloy composition, and how it performs in CNC machining is essential for selecting the right material for your project.
What Is Brass? Is Brass an Alloy?
Yes, brass is an alloy.
Brass is an alloy of:
Copper (Cu)
Zinc (Zn)
Brass = Copper + Zinc
Brass Alloy Composition
The properties of brass depend on the ratio of copper and zinc:
Higher copper → better corrosion resistance
Higher zinc → higher strength and hardness
Common Brass Alloys:
C36000 (free-cutting brass) → best for machining
C26000 → good formability
C27000 → general-purpose brass
This makes brass one of the most versatile engineering materials.
Why Brass Is Ideal for CNC Machining？
Brass is widely used in CNC machining due to its excellent processing performance.
Key Advantages:
Excellent machinability (low tool wear)
Smooth surface finish
High dimensional accuracy
Good electrical conductivity
Corrosion resistance
Brass is one of the easiest metals to machine with high precision.
Brass Fittings and Their Applications
Brass is extensively used in fittings and fluid systems.
Common Types of Brass Fittings:
Brass pipe fittings
Brass compression fittings
Brass hose fittings
Brass threaded fittings (NPT / BSP)
Applications:
Plumbing systems
Water supply systems
Gas and fuel lines
Air and pneumatic systems
Industrial fluid control
Brass fittings are widely used because of leak resistance and durability
Brass vs Other Materials
Brass vs Stainless Steel
Brass → easier to machine
Stainless steel → higher strength
Brass vs Plastic
Brass → stronger, more durable
Plastic → lower cost
Brass offers a balance of cost, performance, and machinability
Custom Brass CNC Machining Services
At Rollyu Precision, we provide custom brass CNC machining services for various industries.
Our Capabilities:
CNC turning and milling
Precision threading (NPT, BSP, metric)
Complex geometry machining
Tight tolerance control
Typical Products:
Brass fittings and connectors
Precision turned parts
Threaded components
Fluid system parts
We support both prototyping and batch production.
Why Choose Brass for Your Project?
Brass is ideal when your application requires:
High machinability
Corrosion resistance
Reliable sealing performance
Good electrical conductivity
Especially suitable for fluid systems and precision components
Looking for custom brass CNC machined parts or fittings?
We provide high-quality machining solutions tailored to your requirements.
Website: www.rollyu.com
Email: info@rollyu.com
