Lead Free Brass

DZR Brass is a high-performance, dezincification-resistant alloy, specifically formulated to prevent the selective leaching of zinc in aggressive environments, particularly in plumbing systems. This lead-free brass ensures compliance with health and environmental standards while providing excellent mechanical properties and corrosion resistance.

Composition:

Copper (Cu): Approximately 61-62%
Zinc (Zn): Approximately 35-37%
Arsenic (As): Approximately 0.02-0.15%
Lead (Pb): <0.1% (Lead-Free)

Grades

C27450:

UNS standard designation for DZR Brass.
Specifies the composition and mechanical properties for DZR Brass.

ISO CuZn37:

International Organization for Standardization (ISO) designation for a specific type of DZR Brass.
Specifies the requirements for copper-zinc alloys with dezincification resistance.

EN CW508L:

European standard designation for DZR Brass.
Specifies the composition and properties for copper-zinc alloys with enhanced resistance to dezincification.

Properties:

Corrosion Resistance:
- Exceptional resistance to dezincification, particularly in acidic and saline environments.
- Good resistance to general corrosion, pitting, and stress corrosion cracking.
Mechanical Properties:
- Tensile Strength: Typically around 450-550 MPa.
- Yield Strength: Approximately 150-250 MPa.
- Elongation: Generally around 20-40%, indicating good ductility.
- Hardness: Moderate hardness, with a typical Brinell hardness number (HB) of around 100-150.
Thermal and Electrical Conductivity:
- Good thermal conductivity, suitable for plumbing and heating systems.
- Moderate electrical conductivity, less than pure copper but sufficient for many industrial uses.

Applications:

Plumbing Systems: Extensively used in domestic and commercial plumbing systems, including fittings, valves, and connectors, due to its resistance to dezincification.
Water Treatment: Employed in water treatment facilities and components exposed to aggressive water conditions.
Industrial Applications: Used in industrial equipment where resistance to corrosion and mechanical strength are critical.
Marine Applications: Suitable for marine hardware and components exposed to seawater due to its corrosion resistance.