I. Basic Introduction
CuCrZr is strengthened through chromium and zirconium precipitation hardening: While maintaining the high electrical and thermal conductivity of copper, its strength is significantly higher than that of pure copper, making it one of the standard solutions for "high strength and high conductivity" applications.
It is widely used in resistance welding electrodes, continuous casting molds, radiators, and components of nuclear fusion devices; the additive direction is the more mature grade in laser copper alloy printing (with a higher laser absorption rate than pure copper).
II. Components (Mass Percentage)
Element
Content (% )
Function
Cu
Matrix
-
Cr
0.5 - 1.2
Time-dependent precipitation strengthening
Zr
0.03 - 0.3
The formation of strengthening and fine-grained crystals
III. National Standards
GB/T 5231 / UNS C18150
IV. Physical Properties
Performance Item
Typical value
Source
Density
Approximately 8.9 g/cm³
Standard typical value
Melting point
Approximately 1075℃
Standard typical value
Mechanical properties
Solution + Aging State (Hardness / Electrical Conductivity)
As per the supplier's warranty certificate
V. Typical Application Scenarios
· Resistance welding electrodes
· Continuous casting mold
· Radiator with conformal water channels
· High heat flux components for nuclear fusion
VI. Advantages and Features
· Balanced high strength and high conductivity, main component of conductive structure
· Chromium-zirconium precipitation strengthening, with higher strength than pure copper
· Laser copper printing maturity is higher than pure copper
VII. Comparison at Home and Abroad
· Standards
Domestic
GB/T 5231 / UNS C18150
Abroad
ASTM C18150
· Grinding Process
Domestic
Aerosolization
Abroad
Atomization, standardized and mature
· Application
Domestic
Nuclear fusion / Heat dissipation propulsion
Abroad
Electrode and thermal management maturity
VIII. Patent Layout
The following are some of the publicly disclosed patents directly related to CuCrZr (Source: Public Patent Database, for technical reference).
CN122214702A has been published
A high-temperature and high-plasticity CuCrZr alloy and its preparation method
Shaanxi Sire New Materials · 2026
CN122428158A has been published
A layered double-peak grain heterostructure CuCrZr alloy and its preparation method
Guangdong Ocean University · 2026
CN121782434A has been authorized
The welding structure and welding method of CuCrZr tube for fusion device and 316L tube
Fusion Energy · 2026
IX. Procurement Key Points
· Confirm the Cr/Zr content and oxygen content
· Request hardness and electrical conductivity data in the solution-aging state
· Verify the density and conductive performance through printed documents