CuCr1Zr (CW106C) vs CuZn36Pb3: 0% composition overlap. Significantly different materials serving different application areas.
CuCr1Zr (CW106C) vs CuZn36Pb3
Side-by-side chemical composition and mechanical property comparison.
Overview
CuCr1Zr (CW106C)
CW106C
Chromium-zirconium copper alloy, precipitation hardened. High electrical/thermal conductivity (~80% IACS) with significantly higher strength and hardness than pure copper. Age-hardened: Rm 440–540 MPa, Rp0.2 380–480 MPa, HB 130–170. Softening temperature ~500°C. UNS C18150, EN CW106C. Applications: resistance welding electrodes and caps, continuous casting molds, circuit breaker contacts, lead frames, MIG welding tips. THE standard electrode material.
CuZn36Pb3
CW603N
Free-cutting leaded brass — the benchmark for non-ferrous machinability (rated 100%). Lead particles act as chip breakers for excellent surface finish. Used for screw machine parts, fittings, valves, watch components, precision mechanics, and electrical connectors. Old DIN number 2.0375.
| CuCr1Zr (CW106C) | CuZn36Pb3 | |
|---|---|---|
| Material Number | CW106C | CW603N |
| Category | Copper & Brass | Copper & Brass |
| Standard | EN 12163 / CEN/TS 13388 | EN 12164 |
Chemical composition (wt%)
| Element | CuCr1Zr (CW106C) | CuZn36Pb3 | Overlap |
|---|---|---|---|
| Cr | 0.5–1.2% | — | — |
| Ni | — | 0–0.3% | — |
| Cu | ≥ 98.5% | 60–63% | No overlap |
| Al | — | 0–0.05% | — |
Mechanical properties
| Property | CuCr1Zr (CW106C) | CuZn36Pb3 | Unit |
|---|---|---|---|
| tensile_strength | 440–540 | ≥ 340 | MPa |
| yield_strength | 380–480 | ≥ 280 | MPa |
| elongation | 8–15 | ≥ 10 | % |
Compatibility Assessment
CuCr1Zr (CW106C) and CuZn36Pb3 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 CuCr1Zr (CW106C) the same as CuZn36Pb3?
CuCr1Zr (CW106C) and CuZn36Pb3 have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace CuCr1Zr (CW106C) with CuZn36Pb3?
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 CuCr1Zr (CW106C) and CuZn36Pb3?
The main differences are in the following elements: Cu. CuCr1Zr (CW106C) is a Copper & Brass grade, while CuZn36Pb3 is a Copper & Brass grade.
Related Comparisons
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.