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CNC Machining Bronze

Bronze CNC Machining – CNC Machining Bronze Services and Parts Supplier

CNCJY is a top metal machining company that is capable of CNC machining bronze parts manufacturing, whether you start with a CAD model or a sample or a sketch, our engineering and bronze CNC machining services will help you make the design become solid parts. Our expertise will review your design and give the optimal option for machining, advanced manufacturing equipment at our factory will provide a high level of precision and accuracy of the custom bronze machined parts. At CNCJY, we work with various bronze materials to produce custom CNC turning bronze parts and CNC milling bronze parts to the exact requirements you specify. We offer a full array of services for bronze parts that require surface finishing and treatment, whether you look for a single prototype or cost-effective large orders, CNCJY will be a reliable supplier of bronze CNC services and parts.

Common Alloys and Specifications of CNC Machining Bronze

Bronze is an alloy that mainly contains copper and tin, also added certain amounts of aluminum and nickel. As another copper-based alloy, bronze is a little stronger than brass and more corrosion-resistant. Bronze is brittle and non-magnetic, excellent machinability, great electrical properties, low friction, and corrosion resistance to saltwater make it suitable for marine applications and parts that require withstand frictional contact. Types of bronzes include tine and phosphor bronze, silicon bronze, aluminum bronze, beryllium bronze, and high-tin bronze.
Properties Ductile, less brittle than cast iron, exhibits low friction, superior corrosion resistance, thermal and electrical conductivity
Applications (Bronze CNC Parts) Bearings, bushings, screws, electrical connectors, springs, sculptures, medals, etc.
Wall Thickness As low as 0.03” or determined by the ratio of wall thickness to planar dimension
Maximum Size Determined by machines and complexity of the part
Tolerances As low as 0.005” or determined by the alloy
Lead Time As fast as 3 days, longer for complex custom bronze parts

932 Bearing Bronze Composition and Properties

932 bronze, also known as SAE 660, C93200, and leaded tin bronze, is a high leaded tin bronze alloy that offers good strength and wear resistance, as well as excellent antifriction qualities, as the name implies, bronze grade 932 is typically used for bearings, bushings and washers.

Copper Tin Lead Zinc Zickel antimony and iron
81 – 85% 6.3 – 7.5% 6 – 8% 1 – 4% 1% less than 1%
Density Hardness Yield Tensile Strength Fatigue Strength Elongation at Break
8.93 g/cm^3 65 Brinell 125 MPa 110 MPa 20%

Surface Finishing and Post Processing Options for Bronze Machining Parts

Bronze material naturally forms a layer of oxidation, unlike other metals, it does not often need a coating. There is a range of surface finishing and treatment methods suitable for CNC machining bronze parts provided at CNCJY.
As milled
Bead blasting
Chemical coating
Satin finishes
Polished finishes

Bronze CNC Machining FAQs

What is CNC Bronze Machining?
Is Bronze Good for CNC Machining?

Soft metals offer various advantageous characteristics for CNC machined components. They are often easy to process, naturally resistant to corrosion, and excellent for a wide range of industrial applications, particularly brass and bronze.

Due to bronze’s excellent machinability, engineers and designers should be aware that bronze’s mechanical and physical properties change when phosphorus, aluminum, manganese, and silicon are added. 642 bronze has the highest machinability out of all brass and bronze alloys, it is renowned for its high tensile strength, ductility, thermal conductivity, hardness, low friction, and corrosion resistance. 932 bronze is also a preferred option by machining companies.

What’s the Difference Between Bronze and Brass


Copper and zinc are the primary elements of brass. Brass composed of copper and zinc is called ordinary brass. If it is a variety of alloys composed of more than two elements, it is called special brass. Bronze is a copper alloy with tin as the main additive, sometimes adding other elements such as phosphorus, manganese, aluminum, or silicon.


Brass is more malleable than either zinc or copper. Low melting point and flows when molten. Brass is resistant to corrosion due to the presence of iron, aluminum, silicon, and manganese in its composition. Ammonia makes a material vulnerable to cracking under tension. Not as hard as steel. Bronze is a brittle, hard metal, that resists corrosion, especially from seawater, and fatigue better than steel and conducts heat and electricity better than most steels.

Why Should I Choose CNCJY for Bronze CNC Machining Services and Parts

A full array of CNC services and equipment to offer intricate parts with various materials

Capabilities of machining bronze parts with custom dimensions and complex geometries

Technical support from material selection to design review to part manufacturing

Well-trained employees and skilled technicians guarantee high speed and quality

All of the manufacturing and inspections will be executed in a strict manner and standard

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