CuFe2P vs CuZn39Pb3: 0% composition overlap. Significantly different materials serving different application areas.
CuFe2P vs CuZn39Pb3
Side-by-side chemical composition and mechanical property comparison.
Overview
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.
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.
| CuFe2P | CuZn39Pb3 | |
|---|---|---|
| Material Number | CW107C | 2.0401 |
| Category | Copper & Brass | Copper & Brass |
| Standard | EN 1758 | EN 12164 |
Chemical composition (wt%)
| Element | CuFe2P | CuZn39Pb3 | Overlap |
|---|---|---|---|
| P | 0.015–0.15% | — | — |
| Ni | — | 0–0.3% | — |
| Cu | — | 57–59% | — |
| Al | — | 0–0.05% | — |
Mechanical properties
| Property | CuFe2P | CuZn39Pb3 | Unit |
|---|---|---|---|
| tensile_strength | 300–340 | ≥ 360 | MPa |
| yield_strength | 150–200 | ≥ 150 | MPa |
| elongation | 25–35 | ≥ 15 | % |
Compatibility Assessment
CuFe2P and CuZn39Pb3 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 CuFe2P the same as CuZn39Pb3?
CuFe2P and CuZn39Pb3 have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace CuFe2P with CuZn39Pb3?
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 CuFe2P and CuZn39Pb3?
The main differences are in the following elements: Fe. CuFe2P is a Copper & Brass grade, while CuZn39Pb3 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.