Metal · Custom parts

CNC machining
of brass.

Mechanical precision and a golden appearance. We machine brass for fittings, hardware, terminals, and decorative parts with custom geometry.

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Quote in 24 h · Engineering review

Reference part in brass for CNC machining.
From your 3D file to a real partCNC machining
From
1 unit
Delivery from
8 working days
Material
CuZn Metal

01 / Why choose this material

Properties and uses
of brass.

Copper and zinc alloy with a golden tone. It offers good machinability in suitable grades and is used in mechanical parts and decorative components.

Brass is a copper and zinc alloy. In suitable grades, it offers good machinability and allows manufacturing details and threads. Its composition is selected based on the environment and function; the golden appearance does not identify an alloy by itself.

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Brass Properties

Mechanical reference · brass in R430 condition

Indicative density
8.4–8.7 g/cm³
Tensile strength
430 MPa
Yield strength
220 MPa
Brinell hardness
110 HB
Presentation
Semi-finished for CNC

Mechanical values for R430 brass are documented in the PDF; density is indicative for the family. The alloy determines machinability and resistance to dezincification in salt water.

Material datasheets

  • Good machinability depending on the alloy
  • Electrical conductor
  • Atmospheric corrosion resistance
  • Polishing possible

Brass applications

Fittings

Fittings and joining parts with custom drilled holes and threads.

Electrical terminals

Electrical terminals and components according to grade and requirements.

Hardware

Hardware and mechanisms that combine function and exterior appearance.

Decorative components

Decorative parts where brass tone or a coating is sought.

02 / A choice based on usage

Choose brass
according to your part.

These criteria help define the material, geometry, and working conditions before manufacturing.

01

Threaded parts

Define the thread and sealing surfaces to manufacture fittings and joints according to drawing.

02

Conductivity

For terminals, confirm the grade and electrical behavior required for the assembly.

03

Exterior appearance

Polishing, chrome plating or painting allow adapting the surface to the product. Specify the visible faces.

The part's function is the starting point.

Indicate loads, temperature, environment, and appearance needed. If the drawing requires a specific grade, include it in the request.

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03 / Finishing also counts

Finishes and appearance
of brass.

Define visible surfaces and the required result for your part. Requested treatments are included in the quote.

Reference part in brass.
Machining finishMaterial view

The part retains machining marks. Indicate adjustment surfaces and visible faces on the drawing.

Reference images: material, geometry, and surface preparation influence the outcome. Special finishes are quoted upon request.

04 / From design to quote

CNC machining
of brass.

Milling and turning allow manufacturing brass parts from a block, plate or bar. The tool removes material to obtain faces, cavities, drilled holes and contours according to the design.

Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.

Upload your file and request a quote

Part tolerances

For dimensions without specific tolerances, Proto&Go! applies ISO 2768-f. With a drawing, equivalent tolerances to IT7 can be assessed, depending on the geometry and requested dimensions. Attach the drawing and mark the functional surfaces.

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Quantity and cost per part

In CNC, setup costs are distributed across the batch units. The final reduction depends on machining time and material.

Quote in 24 hours

Parts from 8 working days after confirming the order. The quote specifies the lead time based on geometry, material, finish, and quantity.

How much it costs to manufacture

The price of your part
in brass.

The price of machining brass depends on the geometry, grade, tolerances, finish and quantity. Includes material, preparation and machining.

Check the catalog example to compare materials. To know the cost of your design, request a quote with your 3D file.

Frequently asked questions

Before manufacturing
in brass.

Properties, applications, and manufacturing: answers to prepare your request.

What is brass and what properties does it have?

Copper and zinc alloy with golden tone. Offers good machinability in suitable grades and is used in mechanical parts and decorative components. Mechanical values of brass R430 documented in the PDF; density is indicative by family. The alloy determines machinability and resistance to dezincification in salt water.

What parts can be manufactured in brass?

We can manufacture fittings, electrical terminals, hardware, and decorative components. CNC machining allows adapting the geometry to your 3D file. Define the loads, the environment, and the finish so we can review the application.

What is the difference between brass and bronze for a machined part?

Brass contains copper and zinc; the bronzes in the catalog are copper families usually alloyed with tin. Brass is used in fittings, hardware, and decorative elements; bronze is preferred for bushings and bearings. The specific composition determines its performance.

Can I use a brass part in saltwater?

It is not advisable to choose any brass for that use. Some alloys may suffer dezincification. Indicate contact with saltwater, temperature, and service conditions to select an appropriate grade or consider another material.

Can brass parts be polished or chrome-plated?

Yes. The catalog includes polishing and chrome plating, as well as sandblasting and painting. The finish depends on the geometry and the surfaces that must be treated. Mark the visible areas and the fits that must maintain their dimensions on the drawing.

How much does it cost to machine a brass part?

The price of brass machining depends on geometry, grade, tolerances, finish, and quantity. It includes material, preparation, and machining. Upload your 3D file to the Proto&Go! platform to receive a quote with cost and lead time.

What tolerances can I request for a brass part?

For dimensions without specific tolerances, Proto&Go! applies ISO 2768-f. With a drawing, equivalent tolerances to IT7 can be assessed, depending on the geometry and requested dimensions. Attach the drawing and mark the functional surfaces.

What file do I need to manufacture a brass part?

Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.

Your next part

Shape it
in brass.

Upload the 3D file. We review feasibility and send you the quote.

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