OEM C26000 Brass (CuZn30) – For Deep Drawing, Stamping & Forming Supplier, Companies

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OEM C26000 Brass (CuZn30) – For Deep Drawing, Stamping & Forming Supplier, Companies

C26000 is an engineering material that achieves a perfect balance of "excellent cold forming properties + good comprehensive mechanical properties + moderate cost". It is particularly suitable for manufacturing parts that require complex deep drawing, stretching, bending, cold heading and other forming processes. It is the preferred economical brass material in many industrial fields. When using it, it is necessary to pay special attention to its tendencies of dezincification corrosion and stress corrosion cracking in specific environments, and to avoid risks by conducting appropriate heat treatment and selecting anti-dezincification grades.

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Product Description

Product Introduction

C26000 brass is one of the most widely used grades in copper-zinc binary alloys. It is also an α single-phase brass with approximately 70% copper and 30% zinc content. Its core feature lies in its excellent cold working performance and good strength, and it is hailed as the most ductile brass among copper alloys. In the family of copper alloys, C26000 belongs to a universal and cost-effective material.

Chemical Composition

Element	Content (%)
Copper (Cu)	68.5-71.5
Zinc (Zn)	Rem (approximately 28.5 - 31.5)
Lead (Pb)	≤0.07
Iron (Fe)	≤0.05
Impurities	≤0.15

Physical Properties

Project	Values
Density	8.53-8.60 g/cm³
Elastic modulus	Approximately 110 GPa
Thermal conductivity	115 – 130 (at 20°C) W/(m·K)
Melting point range	915–932℃
Electrical Conductivity	28 – 32% IACS (annealed state)

Key Features

Excellent cold working performance C26000 exhibits extremely high ductility and toughness, making it ideal for severe plastic deformation processes such as deep drawing, stretching, bending, and cold heading. This is the fundamental reason why it was selected as the material for bullet casings.

Good balance of strength and plasticity It is soft and easy to shape in the annealed state, and its strength can be increased by more than double after cold processing, while still retaining a certain degree of plasticity.

Good electrical and thermal conductivity The conductivity is approximately 28% of pure copper, which is a relatively high level among copper alloys. It is suitable for parts that require both electrical conductivity and shape.

Good resistance to general corrosion It performs well in air, fresh water, steam, and non-oxidizing acid solutions.

Frequently Asked Questions

1. What is the chemical composition of C26000 brass?

C26000 brass, also known as cartridge brass, consists primarily of 68.5-71.5% copper and the remainder (approximately 28.5-31.5%) zinc, with strictly limited impurities such as lead and iron.

2. Why is C26000 preferred for cold working applications?

C26000 is considered the most ductile brass among copper alloys. It offers excellent plastic deformation capabilities, making it ideal for deep drawing, stretching, and bending processes.

3. Can C26000 brass be used in electrical applications?

Yes, it has good electrical and thermal conductivity (approximately 28% of pure copper), making it suitable for components that require a combination of structural shaping and conductivity.

4. Is C26000 brass resistant to corrosion?

It demonstrates good resistance to general corrosion in environments such as fresh water, air, steam, and non-oxidizing acid solutions.

5. How does cold processing affect the mechanical properties of C26000?

While soft in the annealed state, cold processing can more than double its strength while still retaining sufficient plasticity for further manufacturing requirements.