Clad Metal Plate | Roll Bonded

AMETEK Specialty Metal Products has been a leader in developing roll bonding dissimilar metals for more than fifty years. The advantage of clad materials is the end product combines the superior properties of each metal: Strength, Corrosion Resistance, Lightweight, Cost, Thermal and Electrical Conductivity. As a result, clad products produce a material superior to any of the individual metals taken alone.

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Clad metals produced by our roll bond technology combine two or more metals into a single sheet or plate that can be cut, welded or formed into a finished part ranging from chemical processing chambers and pressure vessels to small applications and clad pipe. We specialize in cladding stainless steel or nickel alloys to carbon steel as well as triple layer clad plates bonding stainless steel to an aluminum core.

Because of the properties offered by clad metals, and the wide variety of cladding and backing materials available today, these metals can be combined to make custom materials for a wide range of demanding industries, including health, chemical and petroleum processing, defense, paper and pulp, food and food processing.

Clad metals produced by our roll bond technology combine two or more metals into a single sheet or plate that can be cut, welded or formed into a finished part ranging from chemical processing chambers and pressure vessels to small applications and clad pipe. We specialize in cladding stainless steel or nickel alloys to carbon steel as well as triple layer clad plates bonding stainless steel to an aluminum core.Because of the properties offered by clad metals, and the wide variety of cladding and backing materials available today, these metals can be combined to make custom materials for a wide range of demanding industries, including health, chemical and petroleum processing, defense, paper and pulp, food and food processing.

Advantages

If the problem is unique, then the solution could well be a clad metal. In all cases, clad metals provide combinations of properties and advantages not available in monolithic metals such as:

• Corrosion Resistant Alloys and BPVC rated materials

• Metallurgically bonded stainless steel and Aluminum

• Corrosion Resistant and easy cleaning stainless steel cooking surfaces combined with fast heating carbon steel

• Stainless steel clad with Aluminum core for excellent heat transfer and cooking surface

Manufacturing

AMETEK clad materials are manufactured by roll bonding a core or backing with a specialty metal to produce a metallurgically bonded clad. Many metals can be combined with this technique to provide a custom metal with specific desired properties.

For example, nickel clad steel is an ideal material for withstanding the high-temperature and corrosive environment present in a hospital sterilizer &#; steel provides strength and nickel resists corrosive attack and product contamination.

Materials

Standard composites available are Nickel Clad Steel, Stainless Clad Steel and Stainless Aluminum Clad.

Other materials available include Inconel® Clad Steel, Hastelloy® Clad Steel, 276 Clad Steel, Armor Plate, Copper Clad Steel, Titanium Clad Steel, and Stainless Cladded Tool Steel.

Of course, AMETEK metallurgists are always available to assist you in developing custom product specifications.

Sizes

AMETEKs clad materials are available in standard widths to 120&#; lengths to 480&#; and thickness ranging from 3/16&#; to 1&#;. Cladding on steel backing can be supplied in a range of thicknesses from 5 to 40% of the overall material thickness.

As an additional customer service, we can further process clad plate to meet specifications for close dimensional and flatness tolerances, glass beading or sand blasting one or both sides, cutting to circles or special shapes.

 

Applications

Typical applications include Braising Pans, Boilers, Griddles, Pressure Vessels, Steam Vessels,Cryogenic Transition Plates, and Specialty Knives.

Processing

Roll bonding is achieved by processing a specially prepared &#;sandwich&#; (layers of backing and cladding materials) through a conventional plate hot rolling mill that reduces the thickness and metallurgically bonds the backing steel to the clad material. Parting compound is used between each clad pack before it is welded and then roll bonded to yield two separate clad plates.

After cutting to finish size, the bonded plates are cleaned by blasting with an abrasive mixed with glass beads to obtain a clean, relatively bright surface, both top and bottom, if desired.

Fabrication

Clad plate can be fabricated into different shapes, which allows designers the freedom to produce custom products for a wide range of applications.

Forming: Clad materials can be cut and formed by most shop operations, which include shearing, plasma cutting, drawing, bending, hot forming, machining, drilling and punching.

Welding: Fusing of clad materials is usually done by first welding the backing material using appropriate filler material and then welding the clad side with a welding electrode or filler metal appropriate to that surface.

Quality control, Testing

Generally, clad plate is produced to meet or exceed either ASME A-264 or ASME A-265 codes. To meet these specifications, AMETEK routinely performs tensile tests, shear tests, hardness, bend tests and impact tests (Charpy V-Notch) on modern testing equipment. Other services, as specified by the customer, are also available such as ultrasonic testing, thermal treatment and saw cutting.

Our total quality control begins with our selection of high quality raw materials and follows through to an on-time delivery of the finished product to our customers.

 

Inventory

In order to meet relatively short delivery times, AMETEK maintains an inventory of A-285 Grade C and A-516 Grade 70 carbon steel, nickel 200, and 304L and A-36 stainless steel.

 

We also:

• Provide a raw material inventory and Just-In-Time stocking programs for high-volume users.

• Supply small quantities for specialized requirements, and some stock plates that are available upon request.

Copper clad steel (CCS) tracer wire combines the strength of steel with the conductivity of copper, making it a good choice for locating, pulling, and pipe bursting.  

But what is CCS wire, how is it different from other types of tracer wire, and where is it used? 

What is CCS Wire? 

Copper clad steel is made by metallurgically bonding copper cladding to a steel core conductor using high heat and pressure. The result is a high break load tracer wire that can still carry a current for location purposes. 

To prevent damage, manufacturers also apply high molecular weight polyethylene (HMWPE) or high-density polyethylene (HDPE) insulation. The result is a direct burial rated wire with abrasion, crush, and water resistance. 

CCS wire has several types, including high strength (HS), extra high strength (EHS), stress relieved (SR), and pipe burst. The strength needed for the job depends on the break load you need.  

For example, you wouldn&#;t use solid copper tracer wire for pipe bursting because it would easily break. 

What Makes CCS Tracer Wire Different 

Compared to solid or stranded pure copper options, copper clad steel has several advantages. 

Powerful Metal Combination 

Steel is a strong alloy, giving the wire high tensile strength for drilling and pipe-bursting projects. The copper used to coat the steel core is highly conductive, making it easy for signals to pass through the cable. 

Although other metals and alloys might be as strong or stronger than steel, they aren&#;t as cost-effective. Additionally, though aluminum is lighter than copper, it isn&#;t as conductive. More aluminum is needed to achieve the same conductivity, increasing gauge size. 

Are you interested in learning more about buy copper clad steel plate? Contact us today to secure an expert consultation!

More Cost-Effective Than Pure Copper 

Steel is less expensive than copper, so it makes sense that CCS would be less costly than pure copper tracer wire. 

The lower cost does come with a drawback, though. CCS isn&#;t as flexible as copper, making it harder for workers to manipulate. 

CCS is Theft-Resistant 

How often do we read about copper thieves breaking into homes, businesses, and construction sites to steal copper? 

Copper is valuable, making it an attractive target. But steel &#; not so much. If a thief wanted to take CCS wire from a job site, it has little resale value at scrapyards. The steel core is also difficult to cut through using regular cutting tools. 

Common Applications 

Copper clad steel tracer wire comes in handy for many applications beyond locating underground utilities. 

You can easily find CCS wire used across many projects, including the developing renewables industry. 

Water and Sewer Pipe Applications 

CCS wire can locate underground water and sewer pipes, but it also works well for grounding. 

When used as a grounding wire, copper clad steel safely reroutes electricity during a surge or fault. As a result, workers face fewer shock risks.  

Code enforcement may also require grounding systems as part of an installation, so check before starting your project. 

Directional Drilling and Boring 

Thanks to its steel core, CCS has more tensile strength than pure copper tracer wire. 

Crews can attach copper clad steel wire to drill bits used for directional drilling to track the bit&#;s location as it digs. Because the bit is easier to find, drilling projects are more accurate with fewer risks to other underground assets. 

Although CCS isn&#;t as strong as pipe bursting wire, it works well for lower break load projects where strength isn&#;t critical to the job. 

Open-Cut and Pipe Bursting 

Open-cut installation is the most common way to install pipes, cables, and underground assets. 

When costs are a concern, open-cut projects tend to be less expensive per linear foot than other methods. Workers also have direct access to the utility, allowing them to precisely position the tracer wire. 

For pipe bursting, workers connect a wire to a bursting tool. A machine then pulls the tool through the old pipe to break it. This work often requires a high break load, meaning standard copper or stainless steel options aren&#;t up to the task. CCS wire can withstand the machine&#;s pulling power without stretching or breaking. 

Other Applications 

Copper clad steel has many other applications beyond water and sewer projects. 

Gas Utilities &#; CCS tracer wire can locate underground gas lines. The wire is also good for bonding and grounding purposes. 

Buried Conduit Projects &#; Tracer wire is common for many underground tracing projects, and CCS is no different. It does the same thing as solid copper tracer wire at a more economical price. 

Wind Farms &#; In some cases, CCS can have special corrosion-resistant insulation and jacketing applied for offshore wind projects. 

Overhead Ground Wiring &#; CCS is great for grounding, as its copper layer allows current to safely flow through it. The steel core also helps with vibrations. 

Messenger Wire &#; Although messenger wires don&#;t carry current, they are critical in overhead electrical installations. These wires support other overhead cables, preventing them from sagging. 

Horizontal Directional Drilling &#; Copper clad steel&#;s break load makes it a good option for lower-resistance drilling projects. For pipe bursting, a bulked-up CCS wire with a 4,700 lb. breaking strength is used.

Every Project is Different

It may seem like copper clad steel can do it all, but it&#;s best to understand the project&#;s full scope before jumping in. 

Research the application, learn what APWA-approved color(s) you&#;ll need, and what the environment is like. Every installation is different, and sometimes a particular wire doesn&#;t check all the marks or may be overkill. The environment and final installation location will also dictate any special attributes the wire&#;s insulation or jacketing may need. 

Teams should also see if there&#;s a need for cost-effective options. Solid copper tracer wire can become expensive for extended runs, making CCS a worthy replacement.

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