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Brass C360
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C360 (CZ121) Brass CNC Machining

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What is Brass C360? CNC Machining

CNC Machining

Brass C360 is the classic free-machining brass, and in the UK it is usually supplied as CZ121 (CW614N), the closest standard free-cutting grade. A small lead addition makes chips break short and clear easily, so it machines faster than almost any other metal and sets the benchmark for machinability.

It gives a bright, attractive finish straight off the machine, resists corrosion well in most everyday environments and is non-magnetic. These qualities make it ideal for precision turned parts, locks, hinges, low-friction components and hardware. It is not suited to cold forming, and welding is not recommended.

We CNC turn and mill C360 brass from round, hexagon, square and flat bar, so it is very cost-effective for fittings, inserts and decorative parts in any quantity. If your application has lead restrictions, mention this when you order. Get an instant quote for C360 brass parts, with delivery anywhere in the UK.

Material

Brass C360

Description

Strengths

Lead time 10 business days. The benchmark free-machining brass: cuts fast with short chips and a bright finish, resists corrosion well and is non-magnetic.

Weaknesses

Contains lead; poor cold forming; welding not recommended

Colour & Finishes

Brass

Mechanical properties

Ultimate tensile strength

360–500 MPa

Yield strength

230–350 MPa

Modulus of elasticity

97 GPa

Elongation at break

5–20%

Physical properties

Density

8.47 g/cm³

Hardness

90–160 HB

Corrosion resistance

Fair to excellent

Melting point

875°C

UK equivalent

UK supply grade: CZ121 / CW614N (CuZn39Pb3, UNS C38500)

Thermal properties

Maximum service temperature

Not specified

Thermal expansion coefficient

20.9 × 10⁻⁶ /K

Thermal conductivity

123 W/(m·K)

Electrical properties

Electrical resistivity

6.2 μΩ·cm

Post treatments

Machinability

Excellent (rating 100 – the benchmark)

Joining

Soldering excellent; brazing good

Common applications

High-speed turned components

Locks & hinges

Low-friction moving parts

Telecommunication hardware

Values shown are typical supplier figures for Brass C360 and may vary with stock condition. Please confirm critical properties before production.

Frequently asked questions

Why is brass C360 so easy to machine?

C360 is the benchmark free-machining brass, rated 100 for machinability. It cuts fast with short chips and leaves a bright finish. The equivalent UK grade is CZ121 (CW614N).

What tolerances can be held on brass C360 parts?

Its excellent machinability makes it ideal for small, precise turned parts and inserts. Achievable tolerances depend on part size, geometry and features, so mark any critical tolerances on a 2D drawing with your upload and they will be reviewed and confirmed in your quote.

What finishes suit brass C360?

C360 is often left as machined or polished, and it can be plated. It solders very well and brazes well, but welding is not recommended.

What is brass C360 used for?

Typical uses include high-speed turned components, locks and hinges, low-friction moving parts and telecommunications hardware.

Should I choose brass or copper?

Choose brass C360 for fast machining, good corrosion resistance and low friction. Choose copper C110 when electrical or thermal conductivity is the priority. Note that C360 contains lead, so check suitability for drinking water or food contact.

How long does it take to make brass C360 parts?

The typical lead time shown for brass C360 is 10 business days from an approved order. Quantity, finishing and any heat treatment can affect this, and your quote confirms the date before you order.

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