CuSn5Zn5Pb5-C (CC491K) vs CuFe2P: 14% composition overlap. Significantly different materials serving different application areas.
CuSn5Zn5Pb5-C (CC491K) vs CuFe2P
Side-by-side chemical composition and mechanical property comparison.
Overview
CuSn5Zn5Pb5-C (CC491K)
2.1096
Classic leaded gunmetal (Rotguss Rg5) — the universal copper casting alloy for bearings and fittings. 5% Sn + 5% Zn + 5% Pb provides good machinability, moderate strength, excellent corrosion resistance in fresh and sea water, and self-lubricating properties from lead phase. Used for plain bearings under low/medium loads, valve bodies, pump housings, pipe fittings, and general marine hardware. The economic workhorse of the bronze foundry. ASTM: C83600 (SAE 40), BS: LG2.
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.
| CuSn5Zn5Pb5-C (CC491K) | CuFe2P | |
|---|---|---|
| Material Number | 2.1096 | CW107C |
| Category | Copper & Brass | Copper & Brass |
| Standard | EN 1982 | EN 1758 |
Chemical composition (wt%)
| Element | CuSn5Zn5Pb5-C (CC491K) | CuFe2P | Overlap |
|---|---|---|---|
| Si | ≤ 0.01% | — | — |
| P | ≤ 0.1% | 0.015–0.15% | Partial |
| Ni | ≤ 2% | — | — |
| Cu | 83–87% | — | — |
Mechanical properties
| Property | CuSn5Zn5Pb5-C (CC491K) | CuFe2P | Unit |
|---|---|---|---|
| tensile_strength | 200–250 | 300–340 | MPa |
| yield_strength | 90–110 | 150–200 | MPa |
| elongation | 6–13 | 25–35 | % |
Compatibility Assessment
CuSn5Zn5Pb5-C (CC491K) and CuFe2P have significantly different compositions (14% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is CuSn5Zn5Pb5-C (CC491K) the same as CuFe2P?
CuSn5Zn5Pb5-C (CC491K) and CuFe2P have a 14% composition overlap. They are generally not directly interchangeable.
Can I replace CuSn5Zn5Pb5-C (CC491K) with CuFe2P?
Generally not recommended. The compositions differ significantly (14% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between CuSn5Zn5Pb5-C (CC491K) and CuFe2P?
The main differences are in the following elements: P, Zn, Fe. CuSn5Zn5Pb5-C (CC491K) is a Copper & Brass grade, while CuFe2P is a Copper & Brass grade.
View full data for each material:
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.