CuZn36Pb3 vs Cu-ETP (CW004A): 0% composition overlap. Significantly different materials serving different application areas.
CuZn36Pb3 vs Cu-ETP (CW004A)
Side-by-side chemical composition and mechanical property comparison.
Overview
CuZn36Pb3
CW603N
Free-cutting leaded brass — the benchmark for non-ferrous machinability (rated 100%). Lead particles act as chip breakers for excellent surface finish. Used for screw machine parts, fittings, valves, watch components, precision mechanics, and electrical connectors. Old DIN number 2.0375.
Cu-ETP (CW004A)
2.0060
Electrolytic tough pitch copper — 99.90% Cu minimum with 0.02-0.04% oxygen from electrolytic refining. The standard electrical-grade copper worldwide (IACS 101% conductivity). Highest electrical and thermal conductivity of any commercial copper grade. Easy to cold form, hot form, and solder/braze. Cannot be welded in oxidizing atmosphere (embrittlement from oxygen). Used for electrical busbars, wire, cable, transformer windings, circuit boards, heat exchangers, roofing, and plumbing. ASTM: C11000, UNS C11000.
| CuZn36Pb3 | Cu-ETP (CW004A) | |
|---|---|---|
| Material Number | CW603N | 2.0060 |
| Category | Copper & Brass | Copper & Brass |
| Standard | EN 12164 | EN 1652 |
Chemical composition (wt%)
| Element | CuZn36Pb3 | Cu-ETP (CW004A) | Overlap |
|---|---|---|---|
| Ni | 0–0.3% | — | — |
| Cu | 60–63% | ≥ 99.9% | No overlap |
| Al | 0–0.05% | — | — |
| Pb | 2.5–3.5% | ≤ 0.005% | No overlap |
Mechanical properties
| Property | CuZn36Pb3 | Cu-ETP (CW004A) | Unit |
|---|---|---|---|
| tensile_strength | ≥ 340 | 200–250 | MPa |
| yield_strength | ≥ 280 | 40–80 | MPa |
| elongation | ≥ 10 | ≥ 33 | % |
Compatibility Assessment
CuZn36Pb3 and Cu-ETP (CW004A) have significantly different compositions (0% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is CuZn36Pb3 the same as Cu-ETP (CW004A)?
CuZn36Pb3 and Cu-ETP (CW004A) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace CuZn36Pb3 with Cu-ETP (CW004A)?
Generally not recommended. The compositions differ significantly (0% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between CuZn36Pb3 and Cu-ETP (CW004A)?
The main differences are in the following elements: Cu, Pb. CuZn36Pb3 is a Copper & Brass grade, while Cu-ETP (CW004A) is a Copper & Brass grade.
Related Comparisons
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Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.