Description
Brass Tube – Grades CZ108 & CZ121
Our Brass Tube is supplied in Grades CZ108 and CZ121 depending on thickness of wall, providing versatile performance for both decorative and engineering applications. Thin-wall tubes up to 1/8″ thickness are typically CZ108, ideal for general forming and decorative work, while thicker-walled tubes are CZ121, optimised for machining and engineering uses. Each tube is supplied in mill finish, with the option for polished finish on request subject to availability. Tubes are supplied with a cutting tolerance of +3mm / -0mm.
Key Features & Benefits
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Versatile Grades: As a rule of thumb, CZ108 for thin-wall applications; CZ121 for thicker, machinable tubes.
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Cut-to-Size Service: Supplied to your required dimensions, reducing waste and ensuring accurate fit.
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Mill or Polished Finish: Mill finish as standard; polished options available through us subject to stock or we can recommended local polishers.
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High Corrosion Resistance: Suitable for decorative, structural, and fluid transfer applications.
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Wide Range of Sizes: Extensive range from 1/8″ to over 7″ diameters with various wall thicknesses.
Applications / Typical Uses
Brass tubes are widely used across decorative, engineering, and industrial applications:
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Small-diameter thin-wall tubes for art, lighting, furniture, and decorative projects
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Mid-sized thin-wall tubes for fluid transfer, lighting, and furniture manufacturing
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Thick-walled tubes for engineering and machining projects
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Musical instruments, leveraging brass’s acoustic properties
CZ108 offers excellent hot and cold formability, ideal for general-purpose forming, while CZ121 is designed for precision machining, with lead content improving machinability.
Ordering & Custom Sizes
Choose your required diameter and wall thickness, or contact us for sizes beyond standard stock limits. For polished tubes, we can supply directly or recommend local polishing services. Our cut-to-size service ensures you get the exact length required with minimal waste.
Standard Stock sizes in Grade CZ 108 or CZ 121 Depending on wall thickness
1/8″ x 24SWG | 1/8″ x 22SWG
3/16″ x 22SWG | 3/16″ x 18SWG
1/4″ x 22SWG | 1/4″ x 18SWG | 1/4″ x 16SWG
5/16″ x 22SWG | 5/16″ x 16SWG
3/8″ x 22SWG | 3/8″ x 18SWG | 3/8″ x 16SWG
7/16″ x 22SWG | 7/16″ x 18SWG | 7/16″ x 16SWG
1/2″ x 22SWG | 1/2″ x 18SWG | 1/2″ x 16SWG | 1/2″ x 10SWG
9/16″ x 22SWG | 9/16″ x 16SWG
5/8″ x 22SWG | 5/8″ x 18SWG | 5/8″ x 16SWG | 5/8″ x 10SWG
11/16″ x 22SWG
3/4″ x 22SWG | 3/4″ x 20SWG | 3/4″ x 18SWG | 3/4″ x 16SWG | 3/4″ x 10SWG
7/8″ x 22SWG | 7/8″ x 18SWG | 7/8″ x 16SWG | 7/8″ x 10SWG
1″ x 22SWG | 1″ x 20SWG | 1″ x 18SWG | 1″ x 16SWG | 1″ x 10SWG | 1″ x 1/4″
1.1/8″ x 16SWG | 1.1/8″ x 10SWG | 1.1/4″ x 20SWG | 1.1/4″ x 18SWG | 1.1/4″ x 16SWG | 1.1/4″ x 10SWG
1.3/8″ x 16SWG
1.1/2″ x 18SWG | 1.1/2″ x 16SWG | 1.1/2″ x 10SWG | 1.1/2″ x 1/4″ | 1.1/2″ x 1/4″
1.5/8″ x 16SWG
1.3/4″ x 16SWG | 1.3/4″ x 10SWG | 1.3/4″ x 1/8″ | 1.3/4″ x 1/4″ | 1.3/4″ x 3/8″
2″ x 20SWG | 2″ x 16SWG | 2″ x 10SWG | 2″ x 1/4″ | 2″ x 1/2″
2.1/8″ x 16SWG
2.1/4″ x 16SWG | 2.1/4″ x 10SWG | 2.1/4″ x 1/4″ | 2.1/4″ x 1/2″
2.1/2″ x 18SWG | 2.1/2″ x 16SWG | 2.1/2″ x 10SWG | 2.1/2″ x 1/4″ | 2.1/2″ x 1/2″
2.3/4″ x 10SWG | 2.3/4″ x 3/8″
3″ x 16SWG | 3″ x 10SWG | 3″ x 1/4″ | 3″ x 1/2″
3.1/4″ x 10SWG | 3.1/4″ x 1/4″
3.1/2″ x 1/4″ | 3.1/2″ x 1/2″
4″ x 1/4″ | 4″ x 1/2″ | 4″ x 1″
4.1/4″ x 10SWG
4.1/2″ x 1/2″
4.3/4″ x 10SWG
5″ x 3/4″ | 5″ x 1″
5.1/4″ x 10SWG
7.1/4″ x 10SWG
Material Information
CZ108 (CW508L / Basis Brass)
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Copper (Cu): 62–64%
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Zinc (Zn): Balance
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Aluminum, Iron, Lead, Nickel, Tin: Trace
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Features: Excellent formability, corrosion resistance, ductility, and strength.
CZ121 (CW614N / Free-Cutting Brass)
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Copper (Cu): 57–59%
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Lead (Pb): 2.5–3.5%
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Zinc (Zn): Balance
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Aluminum, Iron, Nickel, Tin: Trace
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Features: Superior machinability, corrosion resistance, suitable for decorative and engineering uses.
FAQs
1. Can Brass Tubes be supplied polished?
Yes, we can supply polished brass tubes or coordinate with local polishing companies to save time.
2. Which grade should I choose, CZ108 or CZ121?
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CZ108: Thin wall tubes for forming and decorative applications.
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CZ121: Thicker tubes for machining, engineering, and decorative projects requiring precision.
3. Can I order custom sizes?
Yes. Please contact us to discuss diameters, wall thicknesses, or lengths outside standard stock.
Order your Brass Tube – CZ108 or CZ121 today from John Keatley Metals for high-quality, precision-cut tubes suitable for both decorative and engineering applications.
