C68700 Tube

Shihang: Your leading C68700 Tube manufacturer in China.

  • 100% Meet the Standard
  • Corrosion-resistance
  • Fully Customization of C68700 Tube
  • Third-Party Inspection Available

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ASTM B111 C68700 Tubes
c68700 tubes
SB111 C68700 Tubes

When it comes to your ASTM SB111 C68700 Tubes, choose Shihang to be your supplier and dedicated manufacturer. We have countless copper tubes that will fit to your applications.

c68700 tubes
c68700 Aluminum Brass Tubes

We will also make your business boom unexpectedly with our profitable c68700 Aluminum Brass Tubes products.

c68700 tubes
C68700 Brass Pipes

If you need a reliable and trusted supplier and manufacturer of C68700 Brass Pipes, Shihang can produce for you. Contact us now!

c68700 tubes
SB 111 UNS C68700 Tubes

SB 111 UNS C68700 Tubes are available in various dimensions, sizes, and shapes for competitive rates.

Send Your Inquiry on Shihang CuNi Tube Now.

  • Professional after-sale service
  • Fast Delivery
  • 20 years of manufacturing experience

Shihang C68700 Tube 

SB 111 c68700 composition

Elements Composition, %
Cu, incl. Ag 76.0-79.0
Al 1.8-2.5
Ni, incl. Co
Pb 0.07 max
Fe 0.06 max
Zn Balance
Mn 0.02-0.06
Other named elements


ASTM B111 UNS C68700 Mechanical Properties

Copper or Copper Alloy UNS No. Temper Designation Annealing temperature, °C Tensile Strength, min Yield Strength, min HV
Code Name ksi Mpa ksi Mpa
C68700 O61 Annealed above 650 50 345 18 125 150

ASTM B111 UNS C68700 Physical Properties

Copper or Copper Alloy UNS No. Melting Point Density Coefficients of Linear Thermal Expansion Specific Heat Capacity Thermal Conductivity
°C °F lb/in3 g/cm3 1×10-6/°C @ 20.0 – 300 °C 1×10-6/°F @ 70.0 – 570 °F cal/g-°C, 20 °C BTU/lb-°F @ 70°F W/m-K, 20 °C BTU/ft2/ft/h/°F @ 70°F
C68700 932-971 1710-1780 0.301 8.33 18.5 10.3 0.09 0.09 100.4 58

Shihang c68700 tube has a copper content of not less than 76%. Our c68700 tube is widely used in architectural applications, condenser plates, and signage.

We can expertly manufacture a c68700 tube that works harden rapidly and less adapted to cold work. Shihang c68700 tube cab ve formed or bent readily enough.

Depending on your specific applications, we can supply various dimensions, sizes, and lengths for the c68700 tube. As a leading manufacturer and supplier, we can customize your ideal c68700 tube based on your requirements.

Shihang c68700 tube is compliant to GB/T, JIS, ASTM, ISO, DIN, BS, and NF standards. Further, our Shihang c68700 tubes are available in different shapes such as round, flat, square, oval, half-round, hexagonal, or customized. Send us your detailed requirements for the customization of the tubes.

Shihang c68700 tubes resist the action of high-velocity salt and blackish water. The main characteristics of our c68700 tube are its resistance to impingement attack.

We recommend you use our c68700 tubes for marine and land power stations in which cooling water velocities are high. Since we have a manufacturing facility and high-tech testing, implement strict control with certifications for our c68700 tubes, we are capable to supply our customers with a superb standard c68700 tube.

Shihang is the premier manufacturer, exporter, supplier, and trader of the c68700 tube in China. We are the largest independent stockholder and stockist of the c68700 tube for more than 20 years. Thus, most of our clients became our life-long partners for the business.

Our team strives hard to provide our clients with a high level of satisfaction towards our products. We deliver and ship our products worldwide while ensuring the packaging process to avoid damages against unconditional weather.

We are the most fitted manufacturer and supplier for c68700 tubes. Please feel free to contact our team for more information.

C68700 Tube: The Ultimate FAQ Guide

In this guide, you’re going to learn everything you need to know about C68700 tubes such as benefits, limitations, classification criteria, chemical composition, finishes, and fabrication techniques.

So, if you want to be an expert in copper alloy tubes, read this guide.

What is C68700 Tube?

C68700 tube is a type of copper alloy that consists of copper and aluminum as the main chemical elements.

These two elements offer unique characteristics to these tubes that make them suitable for their use.

C68700 Tube

C68700 Tube

How do you Select a C68700 Tube Supplier?

Selection of a C68700 tube involves considering factors such as:

· Quality Certification

A given supplier should have all the quality certification that guarantees you a production of quality C68700 tubes.

A reliable supplier should easily avail of these certificates for your consideration.

These certificates also guarantee you that a particular supplier complies with the government’s regulations

· Timely Production

Timely production is vital in ensuring there is a continuation in your processes.

A supplier who can meet the time deadlines is the best to engage with than one who doesn’t.

You can check on previous records when assessing this factor.

· Meeting your Specification

They should meet your unique performance specifications.

The supplier who meets your specification facilitates your processes and gives you an easy time.

· Cost

Cost gives you an element of reliance on your budget.

The supplier that you select should produce the C68700 tubes within your budget.

You can shop around for one who can operate within your budget.

However, you need to avoid making costs as the primary consideration when selecting a given supplier.

Cost should only matter after you have considered the other factors.

Where can you use C68700 Tubes?

C68700 Tube

C68700 Tube

You can use C68700 tubes in the following applications:

  • Heat exchanger and evaporators
  • Distiller tubing
  • Condenser

What are the Types of C68700 Tubes?

C68700 tubes are available in the following types:

· Seamless C68700 Tubes

Seamless C68700 tube is a type whose production process leaves them with no joints along its surface.

This means they have a smooth surface.

Seamless C68700 tubes have superior characteristics compared to welded C68700 tubes.

Such include high operating temperature and pressure.

The purchasing cost is higher than seamless C68700 tubes, and you can use it in a wide range of applications.

· Welded C68700 Tubes

Welded C68700 tubes have joints along their surface due to their production process that entails welding.

These tubes have a lower working pressure and temperature.

They are cheap though they have limited areas of use.

What are the Benefits of C68700 Tubes?

Using C68700 tubes offers the following benefits

  • Easy to fabricate into the shape and length you want.
  • C68700 tubes allow for various usage due to their unique properties, such as anti-corrosion.
  • They are fewer prices and durable, which reduces their overall cost.

What are the Limitations of using C68700 Tubes?

Cost is a limiting factor when you consider using C68700 tubes.

They are pricey compared to other types of tubes.

Such cost includes purchasing and maintenance cost.

The benefits of these tubes, however, are more significant than their limitations

How does C68700 Tube compare to Admiralty Brass Tubes?

Chemical elements in C68700 tubes differ from those in admiralty brass tubes.

Aluminum and copper are present in a C68700 tube, while zinc and copper are present in an admiralty brass tube.

The unique characteristics of these elements enhance the use of these tubes in different applications.

Admiralty brass tube

 Admiralty brass tube

What are the Types of Bending Process for C68700 Tubes?

The bending processes that you can use on your C68700 tubes include:

· Roll Bending

Roll bending is a standard option for bending huge C68700 tubes.

These tubes have a large diameter, and you can use them in heavy marine applications.

There are various types of roll bending methods that you can use—for instance, two roll bending methods and parallel roll bending techniques.

Roll bending produces perfect spiral bends since there is support for both the inner and outer diameters.

· Rotary Bending

In this method, there is control of both the internal and external diameter during the bending process.

This results in a perfect curve and equal strength along the bend.

You, therefore, don’t have t worry about wall thinning of your C68700 tubes.

· Ram Type Bending

Ram type bending may result in a considerable flattening of the tube’s outer bend since there is no support for the internal diameter.

It is the best method to use on square and rectangular C68700 tubes due to the minimal bending of the outer section.

Bending square C68700 tubes using this method reduces wrinkling, and the outer diameter bends inwards.

This forms a concave bend, which prevents the outside section of the curve from further stretching.

It is a cheaper option for bending your tubes and requires less control compared to the other bending methods.

· Compression Bending

The compression bending method is common in applications that require the same type of bend o the opposite sides of the tube.

For instance, bending tubes for use on heat exchanger applications.

The centerline radius for such applications should be more than thrice the overall diameter of the tube for effective bending.

Which Chemical Elements are present in C68700 Tubes?

C68700 consists of 68-70% copper and 28-30% aluminium.

Other elements like zinc and lead are present, though, in small quantities.

Which End Caps can you use on C68700 Tubes?

The type of end cap to use on C68700 tube depends on:

· Material Grade

The material for an end cap can either be plastic or metal.

These materials have unique characteristics that facilitate their usage.

A plastic end cap is cheaper and easy to use.

However, it is not durable since it easily breaks.

A metal end cap is costly and durable.

Some metals may, however, react with your C68700 tubes resulting in a negative effect on them.

· End Design

The end design is vital in giving your C687 tube a tight sealing.

The three types of end cap designs are; threaded, plain, and beveled.

What are the Quality Standards of C68700 Tubes?

C68700 tubes have the following quality standards:

  • ASTM B111
  • GB/T8890
  • BS 2871
  • CZ110
  • JIS H3300
  • DIN 1785

What are the Advantages of Purchasing Quality Certified C68700 Tubes?

The critical advantage of purchasing quality certified C68700 tube is that get tubes that meet all the product specifications.

These tubes withstand the operational conditions you subject them to giving you quality service.

How do you Connect C68700 Tubes?

There are three ways that you can connect your C68700 tubes.

· Threaded Connection

Threaded connections are best for connecting tubes with a smaller diameter.

Proper connection of these tubes involves fitting a male end into a female end and screwing it in an anticlockwise manner.

These ends should fit into each other properly before you start screwing.

· Plain Connection

plain connections are suitable for connecting C68700 tubes, which have a plain end.

A plain end features a tube surface that is at a right angle with its end.

Connection involves having ends which fit into each other.

Once you have installed the ends, you can use an appropriate welding method to weld the joining area.

After welding, you need to subject the joint to various leaking methods to ascertain if there is leakage before you start using it.

· Beveled Connection

A beveled end connection features a tube end that is at a particular angle to the tubes’ surface.

Connecting it is similar to plain connection only that you consider the beveled angle.

Also, you have to check for any leaking points along the joints before using this connection.

How do you cut C68700 Tubes?

It is possible to cut C68700 tubes using the following methods:

· Band Saw Cutting

This method is cheap but not a recommended one due to the uneven surface it leaves after cutting your C68700 tubes.

· Abrasive Cutting

Using this method makes your C68700 tubes to have a rough surface.

This prevents further workings n these tubes.

It is advantageous if you are planning to use your tubes as end tubes on your system.

· Cold Sawing

It is the best method for cutting C68700 tubes since the end surface is fine, and it allows for further machining.

· Laser Cutting

It is an expensive method than others.

It is, however, a fast option and produces a fine cut surface that allows further workings.

· Lathe Cutting

These methods allow you to cut C68700 tubes with varying thicknesses.

You can further work on the cut tubes since they have an even surface.

Whichever method you use, you have to consider the following:

· Cutting Effect

each of the cutting techniques leaves a particular impact on your C68700 tubes.

Such an effect is critical for future machining of the tubes, like in connecting to other tubes.

Methods like band sawing leave your tubes with a rough edge.

This makes them unsuitable for further usage of these tubes.

· Cutting Time

The duration of a particular cutting method takes to cut your C68700 tubes determines its usability.

Though methods that take a short time like laser cutting are expensive, they are the best ones you can use.

· Quantity of C68700 Tubes

You need a faster cutting process when cutting the large volume of C68700 tubes.

The cutting speed here is useful in determining which method to use.

Which Welding Methods can you Apply on C68700 Tubes?

the available welding options for C68700 tubes include:

· Submerged Arc Welding

The use of this method minimizes the splattering of hot materials onto nearby workers and surfaces.

Flux present in this method reduces the emission of high radiation levels.

You don’t need extra pressure when using this method since the electrodes present generates the required pressure.

It is an ideal method for welding thin C68700 tubes, and its high welding speed makes it useful for bulk welding.

· Electric Fusion Welding

Electrofusion welding is the best option for welding C68700 tubes, which are in a complex location.

It is also a secure method for repairing your tubes as the process offers a safe and leakproof connection.

You have to clean the tube’s surface before you start using this method.

This can be costly as you have to choose an appropriate cleaning method.

Welding on a dirty surface is a significant limitation for effective welding using this method.

Others include exerting too much pressure, movement while the welding process takes place and interrupting the fusion cycle.

· High-frequency Welding

High-frequency welding produces heat, which affects a small region of your tube. This increases the welding speed.

This welding method has high-quality welding results, which make it useful in C69700 tubes that require an aesthetic appeal.

Factors you need to consider when choosing a welding method to use are:

  • Tube’s surface preparation
  • Welding speed
  • The flexibility of a particular method
  • The overall cost of a given welding method

Which Surface Finishes are available on C68700 Tubes?

The variety of surface finish methods that you can apply on your C68700 tubes are:

· Brushing

This is the best method of removing imperfections on your C68700 tubes.

The process leaves your tubes having a uniform surface texture with parallel grains.

The method uses an abrasive brush to remove the imperfections.

· Buffing/Polishing

This is a method that reduces the surface roughness of C68700 tubes after machining them.

The process results in a smooth and even surface.

It is the best method to use on welded C68700 tubes.

· Grinding

The main equipment here is a grinder consisting of abrasive wheels that smoothen the surface of C68700 tubes.

You can have different types of grinders depending on the level of smoothness you want for your C68700 tubes.

· Blasting

There are two types of blasting methods that you can apply to your C68700 tubes.

That is, shot peening and sandblasting.

Sandblasting is best for C68700 tubes that need a matte texture.

The process involves pressurizing sand or any abrasive substance onto the surface of your C68700 tube.

The effect of this is your tubes have a clean texture.

It is best to use this type of surface finish on tubes that are not hard enough.

· Heat Treatment

This method involves heating your C68700 tubes over a given temperature.

Heat treatment improves the wear resistance of the tubes.

It also increases the underlying teeth strength.

The essence of this process is to facilitate the removal of residual stress due to mechanical attack of the metal.

· Coating

Coating is the application of a layer of paint or powder over the surface of your C68700 tubes.

The importance of coating is to increase the characteristics of these tubes against certain conditions.

Such properties include anti-corrosion, anti-fouling, and microbial properties.

This facilitates using these tubes in different applications.

Factors you need to consider when selecting a surface finish for your C68700 tubes are:

  • The overall cost of applying a given surface finish
  • The level of hardness of C68700 tubes
  • The speed of applying a particular surface finish

How do you Select a C68700 Tube?

The critical considerations for C68700 tube selection are:

· Length and Thickness

C68700 tube length should be long enough to fit into your application for a tight and secure connection.

The thickness of your C68700 tube should be the same as that of your tubing system for smooth fluid flow.

Thickness ensures there is no pressure drop along the tube, which can reduce the fluid flow.

· Connection Type

The connection type should be compatible with that of your tubing system.

That is, for a plain tubing end, your tube should have a plain end configuration.

The connection type ensures you have a tight joint for your application.

· Pressure and Temperature

You need to select a C68700 tube whose operating temperature and pressure are within that of your system.

This minimizes effects like pressure drop, rupturing of the tubes as a result of a high-pressure fluid flowing through them.

What is the Manufacturing Process of C68700 Tubes?

The two types of C68700 tubes have varying fabrication process. The fabrication methods for seamless C68700 tubes are:

·         Extrusion Method

The extrusion method is an effective method of fabricating your seamless C68700 tube due to several benefits.

For instance, they have a lower cost of operation, and they are flexible.

It is a continuous process which allows you to fabricate different length of your C68700 tube.

The main limitation of this method is the high initial cost that you have to incur.

The main available types of extrusion methods available for use are cold and hot extrusion.

·         Plug Rolling Method

This method is available either as cold or hotplug rolling.

Through the use of this method, you can add other services such as coning, embossing, mitering, and perforation.

Other methods include mandrel and forging.

Welded C68700 tubes have the following fabrication methods:

  • Electric resistance welding
  • Submerged arc welding
  • High-frequency welding
  • Electric resistance welding

What is the Standard Length of a C68700 Tube?

The standard length for C68700 tubes is 6 meters.

Packaging C68700 Tubes ready for shipping

Packaging C68700 Tubes for shipping

How do you Measure a C68700 Tube?

Measuring a C68700 tube involves getting the thickness of these tubes by calculating the overall diameter.

When calculating the overall diameter, you start by getting the inner and outer diameter.

After that, you get the difference between the two to obtain the tube’s thickness.

For the diameter, you have to measure the tube’s circumference and divide it with pie.

At Shihang, we provide a range of copper-nickel tubes depending on the unique requirements of our customers.

Contact us today for all your C68700 Tubes.

You can also send the inquiry to email: sales@shshihang.com directly.

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