Description

Brass Bar – Flat (Grade CZ 121)

Our Brass Flat Bar in Grade CZ 121 is produced from a high-quality copper–zinc alloy known for excellent machinability and corrosion resistance. Commonly used in engineering, model making, and decorative applications, this versatile brass material delivers reliable, consistent performance. With over 120 years of supplying brass sections, John Keatley Metals provides trusted quality backed by extensive industry experience.

The maximum length available for online orders is 900 mm, while standard stock lengths measure 3657 mm. Longer lengths can be supplied on request.

All bars are cut with a precision tolerance of +3 mm / –0 mm.

Not all sizes are listed online; the full available range is shown below, subject to stock.

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Key Features & Benefits

Grade CZ 121 Brass:
Renowned for superb machinability and dependable performance.

Corrosion-Resistant Alloy:
Suitable for long-term use across engineering, fabrication, and decorative applications.

Accurate Cutting:
Supplied with a tolerance of +3 mm / –0 mm for reliable dimensional accuracy.

Versatile Material:
Ideal for machining, model making, fabrication, and precision components.

Extensive Size Range Available:
Large selection of brass flat bar dimensions to suit varied project needs.

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Available Lengths

• Online maximum length: 900 mm

• Standard stock length: 3657 mm

• Longer lengths: Available on request

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Available Sizes (Grade CZ 121)

All dimensions listed exactly as provided (Width × Thickness):

3/16″ × 1/8″
1/4″ × 1/8″ | 1/4″ × 3/16″
3/8″ × 1/8″ | 3/8″ × 3/16″ | 3/8″ × 1/4″

1/2″ × 1/8″ | 1/2″ × 3/16″ | 1/2″ × 1/4″ | 1/2″ × 3/8″

5/8″ × 1/8″ | 5/8″ × 3/16″ | 5/8″ × 1/4″ | 5/8″ × 3/8″ | 5/8″ × 1/2″

3/4″ × 1/8″ | 3/4″ × 3/16″ | 3/4″ × 1/4″ | 3/4″ × 3/16″ |
3/4″ × 1/4″ | 3/4″ × 5/16″ | 3/4″ × 3/8″ | 3/4″ × 1/2″

7/8″ × 3/16″

1″ × 1/8″ | 1″ × 3/16″ | 1″ × 1/4″ | 1″ × 5/16″ | 1″ × 3/8″ |
1″ × 1/2″ | 1″ × 3/4″

1.1/4″ × 1/8″ | 1.1/4″ × 3/16″ | 1.1/4″ × 1/4″ | 1.1/4″ × 3/8″ |
1.1/4″ × 1/2″ | 1.1/4″ × 3/4″ | 1.1/4″ × 1″

1.3/8″ × 1/4″

1.1/2″ × 1/8″ | 1.1/2″ × 3/16″ | 1.1/2″ × 1/4″ | 1.1/2″ × 5/16″ |
1.1/2″ × 3/8″ | 1.1/2″ × 1/2″ | 1.1/2″ × 3/4″ | 1.1/2″ × 1″

2″ × 1/8″ | 2″ × 3/16″ | 2″ × 1/4″ | 2″ × 5/16″ | 2″ × 3/8″ |
2″ × 1/2″ | 2″ × 3/4″ | 2″ × 1″ | 2″ × 1.1/2″

2.1/2″ × 1/8″ | 2.1/2″ × 3/16″ | 2.1/2″ × 1/4″ | 2.1/2″ × 3/8″ |
2.1/2″ × 1/2″ | 2.1/2″ × 3/4″ | 2.1/2″ × 1″ | 2.1/2″ × 1.1/2″

3″ × 1/8″ | 3″ × 3/16″ | 3″ × 1/4″ | 3″ × 3/8″ | 3″ × 1/2″ |
3″ × 3/4″ | 3″ × 1″ | 3″ × 1.1/2″ | 3″ × 2″

4″ × 1/8″ | 4″ × 1/4″ | 4″ × 3/8″ | 4″ × 1/2″ |
4″ × 3/4″ | 4″ × 1″ | 4″ × 1.1/2″ | 4″ × 2″

5.1/2″ × 3/8″

6″ × 1/4″ | 6″ × 3/8″ | 6″ × 1/2″ | 6″ × 3/4″ | 6″ × 1″

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Applications / Typical Uses

Brass flat bar is widely used for:

• Engineering and machining

• Model making and precision components

• Decorative metalwork

• Fabrication and construction tasks

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Product Specifications

• Material Grade: CZ 121

• Profile: Brass Flat Bar

• Cutting Tolerance: +3 mm / –0 mm

• Maximum Online Length: 900 mm

• Standard Stock Length: 3657 mm

• Available Sizes: Full list above

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FAQs

Can I order longer lengths than 900 mm?
Yes. Standard stock length is 3657 mm, and longer lengths can be supplied upon request.

Are all sizes available?
All sizes shown form part of the full range, but stock may vary.

What grade is used?
All brass flat bars listed are supplied in Grade CZ 121.