What is Copper Clad Stainless Steel?
Copper Clad Stainless Steel, a new high-temperature synthetic material produced by the explosive shock of copper plate and steel plate, has the advantages of high electrical conductivity, good corrosion, high bonding strength, non-delamination, etc.
Cu&Cu alloy/ Stainless steel performance is stable / the product has corrosion resistance, wear resistance, weldability, formability, extensibility, and thermal conductivity.
Copper Clad Stainless Steel
Copper Clad Stainless Steel is a composite material coated with a layer of copper film on the surface of stainless steel, which combines the corrosion resistance of stainless steel and the excellent thermal conductivity of copper and is widely used in various fields. This article will detail the characteristics and applications of Copper Clad Stainless Steel.
Features of Copper Clad Stainless Steel
Excellent thermal conductivity: copper has excellent thermal conductivity, so Copper Clad Stainless Steel has good thermal conductivity, can effectively transfer heat, and is suitable for manufacturing heating elements, radiators, etc.
High corrosion resistance: stainless steel has good corrosion resistance, and copper oxidizes slowly in the air, so Copper Clad Stainless Steel is more corrosion-resistant and suitable for the manufacture of valves, pipelines, and other parts that require corrosion resistance.
Beautiful appearance: because copper has a metallic luster and gorgeous appearance, Copper Clad Stainless Steel is also very beautiful and can be used for decoration and landscaping.
Good processing performance: Copper Clad Stainless Steel plasticity and flexibility, easy to process into various shapes and structures, suitable for manufacturing complex mechanical parts.
Good connection performance: Copper Clad Stainless Steel can be well connected with other metal materials, such as welding, bolting, etc., suitable for manufacturing various structural components.
Specification of Copper Clad Stainless Steel
Category |
Parameter |
Specification |
Base Material |
Stainless Steel Grade |
304, 316L |
|
Base Thickness |
0.5mm - 3.0mm |
Cladding |
Material |
Pure Copper |
|
Copper Purity |
≥99.9% |
|
Thickness Ratio |
10-30% of total thickness |
Mechanical Properties |
Tensile Strength |
520-720 MPa |
|
Yield Strength |
≥205 MPa |
|
Elongation |
≥30% |
|
Hardness |
150-200 HV |
Thermal Properties |
Thermal Conductivity |
200-250 W/m·K |
|
Thermal Expansion |
17.0×10⁻⁶/°C |
|
Max Operating Temperature |
300°C |
Bond Properties |
Bond Strength |
≥200 MPa |
|
Bond Test |
No delamination after 90° bend |
|
Bond Type |
Metallurgical bond |
|
Bond Coverage |
≥99% |
Surface Properties (Cu Side) |
Finish |
Clean, bright |
|
Roughness (Ra) |
≤0.8μm |
Surface Properties (SS Side) |
Finish |
Standard mill finish |
|
Roughness (Ra) |
≤2.0μm |
Dimensional Tolerances |
Thickness |
±5% of nominal |
|
Width |
±1mm |
|
Length |
±3mm |
|
Flatness |
≤3mm/m |
Quality Requirements |
Surface Imperfections |
≤0.2mm depth |
|
Edge Straightness |
±1mm/m |
|
Waviness |
≤2mm/m |
Mandatory Testing |
Test Types |
- Ultrasonic bond testing |
|
|
- 90° bend test |
|
|
- Shear strength test |
|
|
- Visual inspection |
|
|
- Dimensional verification |
Operating Conditions |
Temperature Range |
-196°C to 300°C |
|
Environmental Resistance |
Based on SS grade |
|
Corrosion Resistance |
Excellent |
Storage Requirements |
Conditions |
- Dry storage |
|
|
- Avoid corrosive substances |
|
|
- Clean, dry handling |
|
|
- Horizontal stacking |
Required Certification |
Basic Certificates |
- Material composition |
|
|
- Mechanical properties |
|
|
- Dimensional compliance |
|
|
- Bond integrity results |
Primary Applications |
Industry Use |
- Heat exchangers |
|
|
- Chemical processing |
|
|
- Food processing |
|
|
- Marine applications |
|
|
- Electrical conductors |
Grade of Copper Clad Stainless Steel
NB/T 47002.4, GB13238
Applications of Copper Clad Stainless Steel
Copper Clad Stainless Steel, as a kind of composite material with excellent thermal conductivity, high corrosion resistance, beautiful appearance, good processing performance, and good connecting performance, is widely used in the fields of architectural decoration engineering, electrical components, valves and pipelines, mechanical parts, medical devices, and environmental protection engineering. Due to its stable and reliable performance, long service time, and low maintenance cost, Copper Clad Stainless Steel has become one of the preferred materials in many industries.
Architectural decoration projects: Copper Clad Stainless Steel can be made into various decorative lines, sculptures, railings, etc., with beautiful and durable features, and is widely used in architectural decoration projects.
Electrical components: Copper Clad Stainless Steel has good thermal conductivity and corrosion resistance and can manufacture electrical components, such as heating elements, radiators, contacts, etc.
Valves and pipes: Copper Clad Stainless Steel has strong corrosion resistance. It can be used to manufacture valves and pipes and other parts that require corrosion resistance, such as valves and pipes in water treatment equipment.
Mechanical parts: Copper Clad Stainless Steel has good processing performance and connectivity and can manufacture various mechanical parts, such as gears, bushings, screws, etc.
Medical equipment: Copper Clad Stainless Steel has good thermal conductivity and corrosion resistance and can be used to manufacture medical equipment, such as surgical instruments, implants, etc.
Environmental engineering: Copper Clad Stainless Steel has strong corrosion resistance and can be used in environmental engineering, such as manufacturing sewage treatment equipment in the components, waste incineration equipment manufacturing, etc..
Applications of Copper Clad Stainless Steel
Package of Copper Clad Stainless Steel
According to product characteristics and customer needs.
Remark of Copper Clad Stainless Steel
Please provide detailed technical requirements to facilitate communication and determine the solution.
FAQs of Copper Clad Stainless Steel
Q1. What are the main benefits of using Copper-Clad Stainless Steel Plates?
A:Copper-Clad Stainless Steel Plates offer a combination of thermal conductivity and electrical conductivity (from the copper layer) with the mechanical strength and corrosion resistance (from the stainless steel base). This makes them ideal for applications where:
Heat transfer is critical, such as in heat exchangers and cooling systems.
Corrosion resistance is needed, especially in chemical processing or marine environments, where copper's anti-corrosion properties enhance the overall durability.
Electrical conductivity is required for components like electrical conductors, busbars, or electrical contacts.
Q2. How are Copper and Stainless Steel Bonded in Clad Plates?
A:The bonding of copper to stainless steel can be achieved using various methods, such as:
Roll bonding: Copper and stainless steel are passed through rollers at high temperatures to form a metallurgical bond.
Explosive bonding: A controlled explosion is used to bond the two materials together, creating a strong bond without melting the materials.
Diffusion bonding: The metals are heated under pressure to allow atoms to diffuse across the interface, forming a solid bond. These methods ensure that the materials bond securely while preserving the beneficial properties of both metals.
Q3. What industries use Copper-Clad Stainless Steel Plates, and for what applications?
A:Copper-Clad Stainless Steel Plates are widely used in industries where both thermal conductivity and strength are essential:
Chemical Processing: For heat exchangers and reactors exposed to corrosive environments.
Power Generation: In components such as cooling systems and steam generators.
Marine: Used in seawater cooling systems, where both corrosion resistance and thermal conductivity are needed.
Electronics: For components like electrical contacts, busbars, and circuit boards that require high electrical conductivity and resistance to corrosion.
These plates provide an excellent solution where a balance of heat dissipation and structural integrity is necessary.
Copper Clad Stainless Steel supplier-TRUNNANO
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality clad plate, clad rod, clad tube, etc.