CZ132 DZR brass hollow rods are leaded brass stock for dezincification resistance applications, such as water-contact applications, as well as machined and hot-stamped applications, for which the finished part is certified. The alloy is CW602N and CuZn36Pb2As, and made up of Copper, Zinc, Lead and Arsenic. Lead enhances hot-stamping response and machinability, and arsenic prevents dezincification. The ISO 6509-1 test can be requested to verify dezincification resistance. CZ132 is a lead product and not in compliance with the National Do Not Use list. US drinking-water use depends on finished-component NSF/ANSI 61 and NSF/ANSI 372 certification. USA Piping Solution offers you CZ132 hollow rods to your sizes. Please provide OD, bore, length and quantity to see a quote.
Specifications of Cz132 Dzr Brass Hollow Rods
|
Parameter |
Specification & Commercial Details |
|---|---|
|
Product Name |
CZ132 DZR Brass Hollow Rods / Bored Bar Stock |
|
Material Designations |
CZ132 (BS Legacy) | CW602N (EN Numeric) | CuZn36Pb2As (EN Chemical) |
|
Nearest UNS Standard |
UNS C35330 (ASTM B453 approximate cross-reference) |
|
Governing Standards |
EN 12168 (Hollow rod for free machining) EN 12164 (Solid rod baseline specification) EN 12449 (Seamless tubes for outer dimensions >80mm or wall <2mm) |
|
Material Class |
Leaded Arsenical Dezincification-Resistant (DZR) Brass |
|
DZR Corrosion Standard |
Tested to ISO 6509-1 on request (1% copper chloride solution, 75 °C, 24 hours) |
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Product Forms |
Round Hollow Rods, Hexagonal Hollow Bars, Custom Precision-Bored Stock |
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Manufacturing Processes |
Hot Extrusion, Cold Drawing, Direct Mechanical Drilling / Boring |
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Supply Conditions / Tempers |
As-Extruded, Cold Drawn, Annealed, or Stress-Relieved (R280 / R320 / R400 equivalent) |
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Standard Size Range |
Outside Diameter (OD): 30 mm to 120 mm Inside Diameter (ID / Bore): 20 mm to 80 mm (Custom OD/ID ratios available upon mill request) |
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Length Options |
Standard random mill lengths (3 m to 4 m) or precision cut-to-length billets |
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Surface Finish |
As-Drawn, Smooth Machined, Bright Turned, or Clean Extruded |
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Primary Applications |
CNC machined valve bodies, water meter housings, manifold blocks, compression fittings, and hot-stamped plumbing components |
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Compliance & Regulations |
EU RoHS: compliant under copper-alloy exemption 6(c) (confirm current validity) US Potable Water Position: Non-lead-free alloy; compliance depends on finished-part NSF/ANSI 61 & 372 certification |
|
Quality & Documentation |
EN 10204 3.1 Material Test Certificate (MTC), Dimensional Inspection Sheet, Heat Traceability, ISO 6509-1 DZR Test Pass Report |
Applications and Industrial Uses of Cz132 Dzr Brass Hollow Rods
- Plumbing Fittings and Connectors
- Water Meter Components
- Valve Bodies and Valve Stems
- Sanitary Fittings
- Pump Components
- Hydraulic Fittings
- Hot-Stamped Brass Components
- Machined Water Distribution Fittings
Frequently Asked Questions
What are CZ132 DZR brass hollow rods?
CZ132 DZR brass hollow rods are leaded arsenical copper-zinc alloy bored or extruded bar stock (EN CW602N, CuZn36Pb2As) engineered specifically for machined and hot-stamped components requiring high resistance to dezincification in water service.
Is CZ132 the same as CW602N?
Yes. CZ132 is the legacy British Standard designation (BS 2872 / BS 2874), CW602N is the European standard (EN) numerical code, and CuZn36Pb2As is the EN chemical designation. They all refer to the same dezincification-resistant alloy.
What does DZR mean and how is CZ132 tested?
DZR stands for Dezincification Resistance. CZ132 achieves DZR performance through the combination of a 0.02% to 0.15% arsenic addition and controlled heat treatment to reduce susceptibility to dezincification. Qualification is verified using the ISO 6509-1 copper chloride corrosion test.
What is the composition of CZ132?
According to EN 12164, CZ132 (CW602N) contains 61.0% to 63.0% copper, 1.7% to 2.8% lead, 0.02% to 0.15% arsenic, maximum limits of 0.10% iron, 0.10% tin, 0.10% manganese, 0.05% aluminium, and 0.30% nickel, with zinc as the balance.
Is CZ132 lead free, and can it be used for US drinking water?
No, CZ132 is not lead free; it contains 1.7% to 2.8% lead to support machinability. Because US Safe Drinking Water Act requirements limit wetted surface lead to a 0.25% weighted average, raw CZ132 cannot be claimed as lead free. Use in US drinking water systems depends on finished-component geometry, compliance testing, and applicable NSF/ANSI 61 and NSF/ANSI 372 certification requirements.