Fatigue Resistance C18150, Cucr1zr Copper Alloy for Spot Welding Wheels

Product Description

Product Description

C18150(CuCr1Zr) CHROMIUM ZIRCONIUM COPPER ALLOY INTRODUCTION:

C18150, also known as Chromium Zirconium Copper (CuCrZr), is a high-performance copper alloy developed to meet the demanding requirements of applications that involve both high electrical/thermal conductivity and mechanical strength at elevated temperatures. It is classified as a precipitation-hardened copper alloy, strengthened by the addition of small amounts of chromium (Cr) and zirconium (Zr). C18150 has become one of the most widely used copper alloys in industries such as resistance welding, aerospace, power generation, and automotive manufacturing, where materials must withstand severe service conditions while maintaining conductivity.

The alloy's exceptional combination of wear resistance, hardness, conductivity, and high-temperature stability makes it a preferred choice over pure copper or other copper alloys in applications where both strength and conductivity must coexist.

CHEMICAL COMPOSITIONS(%)

Cr	Zr					Cu
0.5-1.5	0.05 -0.25					Remainder

KEY CHARACTERISTICS

Mechanical Properties	Tensile Strength: ~ 450 – 600 MPa (depending on temper and heat treatment) Yield Strength: ~ 350 – 500 MPa Hardness: ~ 120 – 160 HV (up to 180 HV after aging treatment) Excellent Wear Resistance: Retains hardness and surface integrity in high-load and sliding conditions Good Fatigue Resistance: Reliable under repeated stress cycles
Electrical and Thermal Conductivity	Electrical Conductivity: ~ 80 – 90% IACS, significantly higher than most high-strength copper alloys Thermal Conductivity: High, ensuring efficient heat dissipation in demanding environments Conductivity Retention at Temperature: Maintains good conductivity even after extended exposure to elevated temperatures
Corrosion and Oxidation Resistance	Resistant to softening and oxidation at elevated service temperatures Better corrosion resistance than many other high-strength copper alloys Suitable for use in industrial, marine, and aerospace environments
High-Temperature Stability	C18150 is notable for its ability to maintain strength and hardness at elevated temperatures (up to ~500 °C). This makes it especially suitable for resistance welding electrodes and thermal transfer components that are exposed to cyclic heating.
Processing and Workability	Can be hot- and cold-worked before final aging treatment Readily machinable compared to beryllium-containing alloys Suitable for joining processes such as brazing and welding, though machining is often preferred for critical components Can be surface-treated (e.g., plating) for enhanced service life

TYPICAL APPLICATIONS

Resistance Welding	Widely used in resistance spot welding (RSW) electrodes, seam welding wheels, and projection welding tips Provides longer electrode life compared to pure copper due to its hardness and wear resistance Maintains high conductivity, which ensures efficient current transfer and reduces heat generation at contact points
Aerospace Industry	Used in components exposed to high thermal and mechanical stresses, such as: Rocket engine parts Electrical connectors in spacecraft Components in turbines requiring both conductivity and high-temperature stability
Automotive Manufacturing	Welding electrodes and holders for automotive body assembly lines Components in electric vehicles (EVs) requiring efficient heat dissipation and electrical performance High-performance connectors for hybrid systems
Electrical and Power Generation	Electrical contacts and terminals where low resistance and mechanical durability are required Components in high-voltage switchgear Busbars and connectors in power plants and renewable energy systems
Mold and Die Applications	Frequently used in plastic injection molds, especially where rapid heat removal is needed for cycle efficiency Cooling inserts for die casting and extrusion molds Balances wear resistance with excellent thermal conductivity for long tool life
Industrial Equipment	Non-magnetic, wear-resistant components in industrial machinery Heat exchangers and cooling plates in heavy-duty equipment Bearings and bushings subjected to combined mechanical and thermal stresses
Additive Manufacturing & Advanced Manufacturing	Used as a base material in 3D printing (additive manufacturing) of copper alloys, especially for aerospace and defense components that demand high conductivity and strength. Also applied in conformal cooling channels within molds, where rapid heat removal is critical for improving production efficiency.

PRODUCT IMAGES AND FACILITIES

Company Profile

Rich Base Technology Co., Limited
Your Trusted Partner in Copper Alloy Materials!
Founded in 2007, Rich Base Technology Co., Limited is one of the leading manufacturers of copper alloy materials in China. With a management team bringing over 20 years of industry expertise, we deliver high-quality, cost-effective copper alloys to customers worldwide.
 
Our Products
We supply a wide range of copper alloys, including:
Nickel-Beryllium Copper (C17510)
Cobalt-Beryllium Copper (C17500)
Beryllium Copper (C17200, C17300)
Zirconium Copper (C15000, C15100)
Aluminum Bronzes (C95810, C6191)
Chromium-Zirconium Copper (C18150)
Chromium Copper (C18200)
Nickel-Silicon-Chromium Copper (C18000)
Zirconium Copper (C15000, C15100)
Aluminum Bronzes (C95810, C6191)
Available Forms: round bars, square bars, rectangular bars, hexagonal bars, plates, sheets, and customized precision-machined parts, as well as molds based on our materials.
 
Why Choose Us:
1)20+ years of copper alloy manufacturing expertise
2)Complete production facilities — from raw materials to finished products
3)High quality at competitive prices
4)Quick deliveries and responsive service
5)Trusted by global brands
Applications
Our copper alloys are widely used in:
1)Automotive
2)Aerospace & Aircraft
3)Consumer Electronics & Appliances
4)Industrial Machinery & Machine Tools
5)Electrical & Electronic Equipment
6)Resistance Welding
7)Telecommunications
8)Transportation (including high-speed trains)
Trusted Worldwide
Our products are exported across Europe, North America, Northeast Asia, Southeast Asia, and beyond. They are used by leading companies such as Volkswagen, Toyota, Honda, Ford, GM, and major high-speed train manufacturers.
At Rich Base Technology, quality is our priority. Every product undergoes rigorous testing and inspection to ensure it meets customers' requirements before delivery.
 
Rich Base Technology Co., Limited
High-quality copper alloys. Competitive prices. Reliable service.