Weight %. The arsenic addition (0.02–0.25%) inhibits dezincification in the alpha phase; correct heat treatment completes DZR qualification per ISO 6509-1.
| Element | Symbol | Min % | Max % |
|---|---|---|---|
| Copper | Cu | 59.5 | 64.0 |
| Zinc | Zn | Balance | |
| Lead | Pb | 1.5 | 3.5 |
| Arsenic | As | 0.02 | 0.25 |
Bars show the range from the table: bar length at mid-range, zinc as the remainder.
Typical rod values by section size and cold work — strength falls as the section grows. The mill certificate reports the values of the supplied rod. Hardness is a minimum–maximum range.
| Property | Condition | Value | Unit |
|---|---|---|---|
| Tensile / Yield (0.5 % ext.) / Elongation | rod H02 (half hard), up to 0.5 in (13 mm) | ~379 / ~276 / ~10 | MPa / MPa / % |
| Tensile / Yield (0.5 % ext.) / Elongation | rod H02, 0.5–1 in (13–25 mm) | ~345 / ~241 / ~20 | MPa / MPa / % |
| Tensile / Yield (0.5 % ext.) / Elongation | rod H02, 1–2 in (25–51 mm) | ~310 / ~207 / ~30 | MPa / MPa / % |
| Tensile / Yield (0.5 % ext.) / Elongation | rod O60 (soft anneal), up to 1 in (25 mm) | ~276 / ~172 / ~25 | MPa / MPa / % |
| Hardness | rod H02 by size: ≤0.5 / 0.5–1 / 1–2 in | 65–85 / 40–75 / 40–65 | HRB |
| Density | at 20 °C | 8.45 | g/cm³ |
| Electrical Conductivity | at 20 °C | 26 | %IACS |
| Thermal Expansion | CDA, 20–300 °C | 22.3 | ×10⁻⁶/K |
| Melting Range | solidus–liquidus | 896–904 | °C |
| Modulus of Elasticity | CDA | 103 | GPa |
| Machinability | as its EN equivalent CW602N (CuZn39Pb3 = 100) | 75–85 | index |
Typical density of C35330 and its EN equivalent CW602N: 8.43–8.45 g/cm³. Density is a typical physical value of the alloy, not a limit of ASTM B453 or EN 12164.
| Standard | Designation |
|---|---|
| UNS / ASTM (USA) | C35330 — ASTM B453 |
| EN — equivalent | CW602N / CuZn36Pb2As |
| BS (UK legacy) | CZ132 |
| DZR test method | ISO 6509-1 (CuCl₂) |
| Trade name | DZR Brass / DR Brass |
C35330 is an arsenical, leaded DZR (dezincification-resistant) brass per ASTM B453 — 59.5–64% copper, 1.5–3.5% lead for machinability, and 0.02–0.25% arsenic to suppress dezincification. It is the UNS designation for the same metallurgy as CW602N (CZ132), the standard grade for water-fitting components.
The EN equivalent is CW602N (CuZn36Pb2As); the legacy British designation is CZ132. The same bar stock typically certifies to either designation — we confirm the certificate wording at quotation.
Small arsenic additions (0.02–0.25%) inhibit the selective leaching of zinc from the alpha phase in soft or high-chloride waters. Combined with the correct heat treatment, the alloy passes the ISO 6509-1 CuCl₂ dezincification test. Specify the qualification on your drawing — chemistry alone does not guarantee DZR.
Its DZR behaviour is designed for water contact, but it is a leaded grade — usable where the rules still permit a leaded DZR brass (for example the UK), but not for EU drinking-water products under the European positive list (from 31 December 2026), in Australia (lead-free since 1 May 2026) or for US wetted parts under NSF/ANSI 372. End-product approval is the product maker's responsibility; for lead-free DZR specify C69300 or CW724R.
Arsenical DZR brass components, ISO 6509-1 qualified, made to your drawing. ISO 9001:2015. Quote within 24 hours.
Request a QuoteComposition ranges, mechanical properties, machinability ratings and regulatory data on this page are cross-referenced against the publishers below. Tolerances and minimum values are taken from the relevant published standard at the time of writing — for procurement specification, always reference the current published edition.
Last reviewed: September 2026. EN/ISO/ASTM standards are updated periodically. This datasheet reflects the editions listed; for safety-critical or contract-critical applications, always verify against the current published edition of the standard. For project-specific deviations or supplier-specific composition windows, request a Type 3.1 mill certificate (EN 10204) with your order.
Brassland machines C35330 into brass turned parts and CNC machined components to your drawing in Jamnagar, India, including precision turned brass components on 28+ Swiss-type lathes, with an EN 10204 3.1 certificate on every shipment.