385 Brass


Kormax 385 brass comes in a range of bars, tubes, and rounds – including angle bars. Great for architectural and tooling usage, this metal is closely monitored throughout its extrusion to ensure the material is always up to the highest specifications.

385 has been developed for use where maximum machinability and longest tool life are essential. All extrusions are manufactured from continuous cast billet stock ensuring uniform dispersion of lead particles and freedom from porosity. Alloy 385 is susceptible to dezincification under certain conditions and is classified a category III alloy.

Kormax brass can be custom cut to your requirements.

Common Applications


Key Features


Material Profile


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Chemical Composition

Element Symbol Range % Nominal %
Copper Cu 56.0-60.0 58
Lead Pb 2.5-4.5 3.5
Zinc Zn Balance Balance

Mechanical Properties

Material Metric Values Imperial Values
Tensile Strength Min 400 N/mm² 58000 psi
Yield Strength Min 200 N/mm² 29000 psi
Elongation Min 20% 20%
Hardness Min 135 BHN 135 BHN

Dimensional Tolerances

Round Bar

Size Range Tolerance (mm) Tolerance (inch)
up to 15/16″ 0.08 0.003
1″ to 1-3/8″ 0.1 0.004
1-1/2″ to 1-3/4″ 0.13 0.005
2″2 – 3/4″ 0.15 0.006
3″ + 0.3 0.012

Hex Bar

Size Range Tolerance (mm) Tolerance (inch)
up to 15/16″ 0.08 0.003
1″ to 1-3/8″ 0.1 0.004
1-1/2″ to 1-3/4″ 0.13 0.005
2″2 – 3/4″ 0.15 0.006
3″ + 0.3 0.012

Comparative Specifications

BS2874 – CZ121-4Pb

EN 12449 – CuZn39Pb3 (CW614N)


Data Sheet

Alloy 385 Data Sheet

PDF (92 KB)


Engineering Metal Bar Manufacturing Methods

PDF (298 KB)

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Quality Management

Quality materials, delivered to standard.

Kormax is ISO certified for ISO 9001, ISO 14001, and ISO 45001.
All Kormax products come with batch certifications.

Why Choose Us

As a fourth-generation family-owned business, Kormax brings over 75 years of Foundry and Engineering Metals experience to your project.

Kormax operates in various sectors across the world, utilising our leading engineering, manufacturing, and global distribution capabilities to offer world-class solutions for engineers.

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