Copper Steel Clad Plate

Copper Steel Clad Plate

Copper-clad steel plate is a composite material that combines the advantages of copper and steel, featuring the electrical conductivity, thermal conductivity, and corrosion resistance of copper, as well as the high strength and mechanical properties of steel.
It is manufactured using techniques such as explosive bonding or hot rolling, and is widely applied in industries such as electrical engineering, construction, transportation, vacuum salt production, and electrolytic copper foil.
The copper layer of the copper-clad steel plate provides excellent conductivity and corrosion resistance, making it suitable for grounding systems, electrical transmission conductors, and more. The steel substrate offers high tensile strength and yield strength, typically ranging from 400 to 800 MPa, ensuring structural stability under high loads and harsh environments. In the vacuum salt production industry, the corrosion resistance and efficient thermal conductivity of copper-clad steel plate extend the equipment’s service life and improve the efficiency of the salt-making process. Additionally, this material is widely used in pressure vessel heat exchangers, refrigeration equipment and enhancing energy efficiency. Overall, copper-clad steel plate, with its combined properties, demonstrates broad application prospects across various industrial fields, effectively reducing material costs and lowering equipment maintenance expenses.

PRODUCING CONDITION

ASTM B432 ; ASME SB898 ; EN 1982:2008; GB/T 8547-2010 etc.

Carbon steels such as ASME SA516, ASTM A516 Gr. 55, 60, 65, 70; Stainless steels like: ASTM A240, ASME SA240, ASTM A789, ASME SA789, ASTM A182, ASME SA182, EN 10028-2, EN 10088-2, EN 10088-7 etc.

ASTM B 171 C70600, C71500 , C71520, C72200; ASTM B152 C10200, C10400, C11000, C10500, C12000 etc.

	Clad Layer THX.	TTL THX.	Max. Width	Max. Length
Explosive	min. 2mm	–	4.5m	14m
Explosive + Rolling	0.8-2mm	max. 152mm	4.5m	14m
Rolling	0.8-14mm	8-40mm	4.5m	14m

Thickness ratio of the cladding to the base material should be greater than or equal to 1:3 for roll bonding.

We can produce wide titanium-steel clad plates using a 5-meter rolling mill, ensuring the cladding layer is seamless.

Others could be tailored due to customer’s unique need.

characteristics

Different composite methods have varying requirements for the cladding and base materials. We can provide customized production based on the specific needs of our customers.

Material Test Data

The following chemical composition and mechanical performance tests are based on C11000 + Q235B, with a thickness of 3+35mm for example.

Layer metal: 3mm thickness, ASTM B152, C11000 (T1) copper plate

Base metal: 35mm thickness, Q235B steel plate

Bonding method: explosive bonding.

Chemical Composition

Copper clad layer chemical analysis (wt%) as below:

Cu	Fe	Zn	P	S	Si	Ag
Bal.	0.0009	0.0008	0.0009	0.0007	0.0006	0.0008

Mechanical Performance

Mechanical performance as below：

A.A	DIM	SQ	CTM	BR(%)	T.S Rm/(Mpa)	Y.S ReL/(Mpa)	E.L. %	U.T
C.P	PASS	PASS	PASS	98%	510	228	30	PASS
A.A: Analysis Area DIM: Dimension SQ: Surface Quality			CTM: Cladding Thickness Measurement BR(%): Bonding Rate T.S Rm/(Mpa): Tensile Strength			Y.S ReL/(Mpa): Yield Strength E.L A/%: Percentage Elongation After Fracture U.T: Ultrasonic Testing

Third Party Certificate

In accordance with ASTM A578/A578M Level B, we perform 100% ultrasonic testing (UT), ensuring a bonding rate of over 99%. Tests for chemical composition, mechanical properties, low-temperature impact, hardness, PWHT (Post Weld Heat Treatment), and HIC (Hydrogen-Induced Cracking) can be conducted as per customer requirements.

Additionally, we provide EN 10204 – 3.2 certification.

Lloyds

Bureau Veritas

CCS

TUV

SGS

CERTIFICATION

The company has achieved ISO 9001 Quality Management System certification, ISO 14001 Environmental Management System certification, and Occupational Health and Safety Management System certification. Other certifications, such as PED and API, are currently in the application process. Our clad plate products have also received CE certification for pressure vessels, while our marine clad plates have been certified by six national classification societies, including CCS, DNV GL, LR, BV, RINA, and ABS.

TUV certification

ABS certification 01

ABS certification 02

CE certification 02

CE certification 01

ISO 14001 certification

ISO 9001 certification

DELIVERY AND PACKING

Below is our standard packing method for export transportation, for other special requirements from our customers, we can customize. The surface of the clad plates is covered with a PE plastic film, followed by a layer of hard cardboard for protection. The outermost layer is waterproofed, and labels are applied to ensure effective identification. The product is then loaded for shipment.

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packing

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delivery

FAQ

Can customers specify the suppliers of raw materials such as pressure vessel steel, stainless steel, titanium, copper, and nickel-based alloys used in CLAD products when placing an order?

Of course, no problem. Our company has long-standing, strong partnerships with major steel mills such as TISCO, TSINGSHAN, Jinan Steel, CITIC Special Steel, NISCO, ANSTEEL, SHOUGANG, and SHAGANG, as well as suppliers of titanium, nickel alloys, and copper materials. Customers can specify their suppliers or provide their own raw materials.

Can we include our own specific requirements and agreements in addition to the general ordering terms?

Yes, it is certainly possible to include your own specific requirements and agreements alongside the standard ordering terms. This can be done through a customized agreement or contract that outlines any additional specifications, terms, or conditions unique to your order. It is essential that both parties reach mutual agreement on these additional terms before proceeding with the order to ensure clarity and alignment.

Can the customer request third-party inspection and a 3.2 certificate of compliance?

Yes, customers can request third-party inspection and the issuance of a 3.2 certificate of compliance. This certificate, which verifies that the product meets specific quality standards, can be provided upon request. The third-party inspection will be conducted by a recognized independent entity to ensure that the product complies with the agreed-upon specifications. Please inform us in advance if this is required, so we can make the necessary arrangements.

Does the company maintain a regular stock of cladded plates for quick delivery?

Due to the specific nature of cladded plates, each order is typically accompanied by a technical agreement, making it difficult for us to keep a large inventory. However, we do maintain some stock of certain grades of cladded plates. Feel free to inquire with us about availability.

What is the typical delivery time for your company’s cladded plates?

The delivery time depends on the arrival of base materials and cladding materials. If there are no special technical requirements, both rolling and explosion bonding processes can typically be completed and delivered within 25-35 days after the raw materials arrive.

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