Red Brass

Lead-Free Red Brass is a copper-zinc alloy with a higher copper content compared to other brasses, giving it a reddish hue and excellent corrosion resistance. This alloy is known for its good mechanical properties, making it suitable for a variety of applications.

Composition:

Copper (Cu): Approximately 85%
Zinc (Zn): Approximately 15%
Lead (Pb): <0.09% (Lead-Free)

Grades

ASTM B135 C23000:

ASTM B135: Standard Specification for Seamless Brass Tube.
C23000: Designation for Red Brass in this standard.

BS 2870 CZ 102:

British Standard for copper and copper alloys.
CZ 102: Designation for Red Brass in this standard.

EN 12449 CW 502L:

European standard for copper and copper alloys – Seamless, round tubes for general purposes.
CW 502L: European designation for Red Brass.

JIS H3300 C 2300:

Japanese Industrial Standard for copper and copper alloy seamless tubes.
C 2300: Japanese designation for Red Brass.

ASTM C69400, C69430:

Additional ASTM designations for Red Brass alloys with varying compositions.

Properties:

Corrosion Resistance:
- Excellent resistance to corrosion in various environments, including freshwater, seawater, and mildly acidic conditions.
- Resistant to dezincification and stress corrosion cracking.
Mechanical Properties:
- Tensile Strength: Typically around 310-410 MPa.
- Yield Strength: Approximately 100-150 MPa.
- Elongation: Generally around 35-50%, indicating good ductility.
- Hardness: Moderate hardness, with a typical Brinell hardness number (HB) of around 60-100.
Thermal and Electrical Conductivity:
- Good thermal conductivity, suitable for heat exchangers and other thermal applications.
- Good electrical conductivity, less than pure copper but sufficient for many industrial uses.

Applications:

Plumbing and Heating: Used in plumbing systems, fittings, and valves due to its corrosion resistance and mechanical properties.
Marine Applications: Employed in marine hardware and components due to its excellent resistance to seawater corrosion.
Industrial Applications: Used in various industrial equipment, including heat exchangers, condensers, and piping systems.
Architectural Applications: Utilized in decorative and architectural elements due to its aesthetic appearance and workability.
Electrical Applications: Used in electrical connectors and components where good conductivity is required.