CuZn39Pb3 vs Cu-ETP (CW004A): 0% composition overlap. Significantly different materials serving different application areas.
CuZn39Pb3 vs Cu-ETP (CW004A)
Side-by-side chemical composition and mechanical property comparison.
Overview
CuZn39Pb3
2.0401
The most widely used free-cutting brass (machinability index 100%). Excellent for high-speed automatic lathe work. Used for turned parts, faucets, valves, fittings, screws, nuts, electrical connectors, and watch components. Also known as MS58.
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.
| CuZn39Pb3 | Cu-ETP (CW004A) | |
|---|---|---|
| Material Number | 2.0401 | 2.0060 |
| Category | Copper & Brass | Copper & Brass |
| Standard | EN 12164 | EN 1652 |
Chemical composition (wt%)
| Element | CuZn39Pb3 | Cu-ETP (CW004A) | Overlap |
|---|---|---|---|
| Ni | 0–0.3% | — | — |
| Cu | 57–59% | ≥ 99.9% | No overlap |
| Al | 0–0.05% | — | — |
| Pb | 2.5–3.5% | ≤ 0.005% | No overlap |
Mechanical properties
| Property | CuZn39Pb3 | Cu-ETP (CW004A) | Unit |
|---|---|---|---|
| tensile_strength | ≥ 360 | 200–250 | MPa |
| yield_strength | ≥ 150 | 40–80 | MPa |
| elongation | ≥ 15 | ≥ 33 | % |
Compatibility Assessment
CuZn39Pb3 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 CuZn39Pb3 the same as Cu-ETP (CW004A)?
CuZn39Pb3 and Cu-ETP (CW004A) have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace CuZn39Pb3 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 CuZn39Pb3 and Cu-ETP (CW004A)?
The main differences are in the following elements: Cu, Pb. CuZn39Pb3 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.