Cu-ETP vs Cu-ETP (CW004A): 100% composition overlap. Very similar materials, likely interchangeable for most applications.
Cu-ETP vs Cu-ETP (CW004A)
Side-by-side chemical composition and mechanical property comparison.
Overview
Cu-ETP
CW004A
Electrolytic Tough Pitch copper — the most widely used copper grade worldwide. 99.90% Cu min with controlled oxygen content (~0.02-0.04%). Electrical conductivity ≥100% IACS. Used for busbars, motor windings, transformer coils, electrical conductors, roofing, and radiators. Caution: hydrogen embrittlement risk in reducing atmospheres above 370°C.
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.
| Cu-ETP | Cu-ETP (CW004A) | |
|---|---|---|
| Material Number | CW004A | 2.0060 |
| Category | Copper & Brass | Copper & Brass |
| Standard | EN 13601 | EN 1652 |
Chemical composition (wt%)
| Element | Cu-ETP | Cu-ETP (CW004A) | Overlap |
|---|---|---|---|
| Cu | ≥ 99.9% | ≥ 99.9% | OK |
| O | 0–0.04% | ≤ 0.04% | OK |
| Bi | 0–0.0005% | ≤ 0.0005% | OK |
| Pb | 0–0.005% | ≤ 0.005% | OK |
Mechanical properties
| Property | Cu-ETP | Cu-ETP (CW004A) | Unit |
|---|---|---|---|
| tensile_strength | 200–260 | 200–250 | MPa |
| yield_strength | 40–80 | 40–80 | MPa |
| elongation | ≥ 33 | ≥ 33 | % |
Compatibility Assessment
Cu-ETP and Cu-ETP (CW004A) have very similar compositions (100% overlap) and are likely interchangeable for most applications. Verify mechanical properties for your specific use case.
Automated assessment based on composition analysis
Frequently Asked Questions
Is Cu-ETP the same as Cu-ETP (CW004A)?
Cu-ETP and Cu-ETP (CW004A) have a 100% composition overlap. For most purposes, they can be considered similar.
Can I replace Cu-ETP with Cu-ETP (CW004A)?
In many cases, yes. The compositions overlap significantly (100%). However, always verify mechanical property requirements and heat treatment compatibility for your specific application.
What is the difference between Cu-ETP and Cu-ETP (CW004A)?
The main differences are in the following elements: overall alloying content. Cu-ETP 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.