Cu-ETP vs CuFe2P: 0% composition overlap. Significantly different materials serving different application areas.
Cu-ETP vs CuFe2P
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.
CuFe2P
CW107C
Precipitation-hardened copper-iron alloy — THE semiconductor leadframe material since 1964. Fe precipitates give UTS up to 580 MPa while maintaining 60-65% IACS electrical conductivity. Resists softening to 350°C (critical for IC packaging). Also used for automotive connectors, pin grid arrays (PGA), and terminals. Trade names: Wieland K65, Aurubis PNA212.
| Cu-ETP | CuFe2P | |
|---|---|---|
| Material Number | CW004A | CW107C |
| Category | Copper & Brass | Copper & Brass |
| Standard | EN 13601 | EN 1758 |
Chemical composition (wt%)
| Element | Cu-ETP | CuFe2P | Overlap |
|---|---|---|---|
| P | — | 0.015–0.15% | — |
| Cu | ≥ 99.9% | — | — |
| O | 0–0.04% | — | — |
| Bi | 0–0.0005% | — | — |
Mechanical properties
| Property | Cu-ETP | CuFe2P | Unit |
|---|---|---|---|
| tensile_strength | 200–260 | 300–340 | MPa |
| yield_strength | 40–80 | 150–200 | MPa |
| elongation | ≥ 33 | 25–35 | % |
Compatibility Assessment
Cu-ETP and CuFe2P 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 Cu-ETP the same as CuFe2P?
Cu-ETP and CuFe2P have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace Cu-ETP with CuFe2P?
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 Cu-ETP and CuFe2P?
The main differences are in the following elements: overall alloying content. Cu-ETP is a Copper & Brass grade, while CuFe2P 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.