SHIHANG COPPER NICKEL PIPE FITTINGS

Copper Nickel Butt Welding Pipe Fittings Standard Table

You can check the copper nickel fittings standard and copper nickel pipe fittings dimensions as below:

DIN Standard Pipe Fittings

DIN standard copper nickel pipe fittings are most common standard in shipbuilding.

There are four main standards as below:

• DIN 86087 Copper Nickel Saddle
• DIN 86088 Copper Nickel Tee
• DIN 86089 Copper Nickel Reducer
• DIN 86090 Copper Nickel Elbow
• DIN 28011 Copper Nickel End cap

The pressure rate in DIN is 10 bar and 14 bar.

Material: it can be named as CW352h and Cuni10fe1.6mn.

The DIN standard material requirement like tolerance is stricter than other standards.

EEMUA 146 Standard Copper Nickel Pipe Fittings

EEMUA 146 standard copper-nickel pipe fittings are normally used on the marine and offshore structure.

There are five main styles as below:

• Copper Nickel Elbow
• Copper Nickel Tee
• Copper Nickel Reducer
• Copper Nickel End Cap
• Copper Nickel Saddle

The pressure rate in DIN is 16 bar and 20 bar.

Material: it can be named as UNS 7060X

ASME B16.9 Copper Nickel Pipe Fittings

ASME B16.9 standard flanges are mainly used on the oil field , offshore desalination plant , FPSO and so on.

There are five main standards as below:

• Copper Nickel Elbow
• Copper Nickel Tee
• Copper Nickel Reducer
• Copper Nickel End Cap
• Copper Nickel Stub End

Thickness: Sch5s, Sch10s, Sch40s, Sch80s.

Material: ASTM B466 UNS C70600

Copper Nickel Pipe Fittings Type

For copper nickel pipeline , copper nickel pipe fittings is an important part.

There are six main copper nickel pipe fittings component.

• elbow
• tee
• reducer
• saddle
• end cap
• asme b16.9 stub end

Copper Nickel Pipe Fittings – Elbow

Copper nickel elbows ( cuni elbow ) are a type of 90-10 copper nickel pipe and fittings used for changing the flow direction.

Among all copper nickel pipe fittings used in the piping system,

the demand copper nickel elbow is the largest.

It can be about 80%.

Shihang, as a copper nickel fittings supplier , also produce the copper nickel elbow.

Copper Nickel Elbow

Different forming processes are used for different materials or wall thickness elbows.

Copper nickel pipe fittings manufacturers commonly used seamless elbow forming process hot push hydraumatic or clod forming method.

The most common application is copper nickel elbow shipbuilding.

If the outer diameter is more than 457 mm , it should be welded.

There are three main standard for copper nickel elbow:

• DIN 86090
• EEMUA 146 , EEMUA 234
• ASME B16.9

For divided into type , there are two

• Long Radius ( normally 1.5 D )
• Short Radius ( normally 1D )

If you want to know more info about copper nickel elbow price list, cuni elbow price list or copper nickel pipe fittings catalogue,

Please feel free to contact us. E-mail:sales@shshihang.com

Copper Nickel Pipe Fittings – Tee

Copper nickel tee is also one of the copper nickel pipe fittings.

It is mainly used in the main pipe branch pipe.

Copper Nickel Tee

Copper nickel tee is divided into the equal tee and reducing tee.

For copper nickel seamless tee, the main processes include hydraulic bulging and hot-press forming.

There are three main standard for copper nickel tee

• DIN 86088
• EEMUA 146 / EEMUA 234
• ASME B16.9

Shihang, as a copper nickel fittings manufacturer ,is also a china copper nickel tee manufacturer.

If you want to know more info about copper nickel tee price list, cuni tee price list or copper nickel pipe fittings catalogue,

Please feel free to contact us. E-mail:sales@shshihang.com

Copper Nickel Pipe Fittings – Reducer

Copper nickel reducer is one of the common copper nickel pipe fittings.

It is used for the connection of two different diameters copper nickel pipes.

In accordance with the appearance,

Copper Nickel Reducer

they are divided into concentric reducer and eccentric reducer.

For seamless copper nickel reducer , outer diameter is less than 419 mm.

The commonly used forming process is shrinkage-reducing, expanding-diameter pressing.

Reducing the forming process of reducing joints is to put the tube blank with the same diameter as the major diameter of the reducing joint into the forming die.

By pressing along the axial direction of the blank, the copper nickel pipes moves along the cavity and shrinks and forms.

According to the size of the reducer, it can be divided into one press forming or multiple press forming.

For seam welded copper nickel reduer , outer diameter is over than 457mm.

Rolling

We use copper nickel plate to roll , and then welded.

The reducer used for ventilation and dust removal pipes is welded after the steel plate is rolled.

Copper Nickel Pipe Fittings – Saddle

Copper nickel saddle is an alternative to the copper nickel tee.

It has strong flexibility of use and is well received by domestic and foreign markets.

The advantage is large diameter change and wide range of diameter change.

The copper nickel saddles welded with copper nickel pipes.

The functions are same as copper nickel tees.

Copper Nickel Pipe Fittings – End Cap

Copper nickel end cap is welded in the pipe end or installed in the pipe end of the external thread to cover the tube pipe fittings.

Main standard as below:

• DIN 28011
• EEMUA 146
• ASME B16.9

Copper Nickel Pipe Fittings – ASME B16.9 Stub End

Copper Nickel Pipe Fittings Catalogue

Please kindly click here to download our Copper Nickel Pipe Fittings Catalogue.

Copper Nickel Flanges Chemical Composition

Material Analysis Tester

1.Comparison table of International Standard Specifications for CuNi 90/10 pipe fittings

 2.Comparison table of International Standard Specifications for copper nickel 70/30 pipe fittings

Copper Nickel Flanges Physical Properties

Copper Nickel Pipe Mechanical Properties

Copper Nickel Pipe Fittings Application

The applications of copper-nickel pipe fittings are widely used in different industries.

• Desalination plants: Such pipe fittings are commonly used in minerals and metallurgy projects where these copper-nickel pipe fittings dimensions guard piping mechanisms against water, sand, and defective soil ingredients.
• Shipbuilding: These projects are based on sea or river where pipe fittings play the decisive role to protect pipe systems from dangerous water substances. It also helps to put across the water and other solid stuff in vessels and pipes to the ships through tubes and pipes.
• Power Generation: The power plants rely on such pipe fittings and tubes where electricity can quickly pass through to the object.

However, other industries where such copper nickel pipe fittings are widely used are seawater projects and hulls of ships and boats.

Copper Nickel Pipe Fittings Features

• Copper Nickel Pipe Fittings are resistant to water, salts and seawater dangerous substances.
• Copper Nickel Pipe Fittings also protect pipes from acids contain non-oxidant elements
• Copper Nickel Pipe Fittings are water-resistant and protects the copper-nickel pipe flanges from organic compounds, brine water, salt, dangerous acids with non-oxidizing diluted contents.
• Copper Nickel Pipe Fittings are used efficiently for seawater oil piping systems.

Copper Nickel Pipe Fittings Benifit

• Copper Nickel Pipe Fittings are durable and sturdy enough to avoid any leakages.
• Copper Nickel Pipe Fittings are easily to install, repair and fixed.
• Extend Product Lifecycle of piping systems and mechanism.
• Resistant to water, marine organisms, non-oxidant acids and other corrosive ingredients.
• Copper Nickel Pipe Fittings can perform proficiently under healthy caustic environments.
• Prevents antifouling substances to stick with the object.

Copper Nickel Pipe Fittings Manufacture

Requirements on Materials

1.1 The materials for manufacturing pipe fittings should be copper-nickel alloy pipes with required ductility and heat treatment, which are suitable for welding with copper nickel pipe fittings, copper nickel flanges, and copper-nickel alloy that satisfy the relative requirements in DIN, AMSE and EN standards

1.2 The copper nickel alloy materials for manufacturing pipe fittings should be seamless copper-nickel alloy pipes. And their chemical and mechanical properties should satisfy the requirements of relative standards. The inspection device for the chemical components is shown below.

1.3 The materials should come with quality certificates, the inspection items of which should satisfy the requirements of relative standards or the order. Materials with no markings, batch numbers or quality certificates, or with quality certificates with incomplete inspection items should not be used.

1.4 After the materials arrive at the factory, our company will inspect them according to the quality certificate before acceptance, and will conduct sampling inspections in terms of appearance, dimensions as well as physical and chemical properties.

6.1. Requirements on Copper Nickel Fittings Manufacturing Processes

6.1.1 Copper Nickel Elbow Thermoforming Process:

1） Blanking according to desired dimensions through the band saw；

2） Elbow hot pressing

1. Adjusting the intermediate frequency power supply to heat the core of the material and increasing the heating current as the pipe blank is being push forward and monitoring the temperature of the blank pipe through the temperature monitor. The pipe blank should be heated to 900～950℃；
2. Equipment：intermediate frequency induction heating coils, elbow pressing machine;

6.1.2 Copper Nickel Elbow Cold Forming Process:

• Blanking according to desired dimensions through the band saw and adjusting the angle of the band saw according to the sample；
• Elbow cold pressing

a) Opening the mould and inserting the workpiece covered by the lubricant into the guiding section of the cavity.

b) Pressing together the upper and lower mould through the hydraulic cylinder, and the pipe blank in the guiding section of the cavity will be pushed into the forming cavity by the side push cylinder. Below is the hydraulic press.

Figure 6.1.3.1 YL32-2000 Four Column Hydraulic Press

6.1.3 Copper Nickel Tee Cold Forming Process:

• Blanking

Blanking according to the requirements of the tee blanking parameter chart through the band saw;

• Press forming

a) Equipment: Pipe fitting cold forming mould, hydraulic press;

b) Inserting the qualified material covered by wax into the mould cavity and closing the guard plate；

c) Adjusting pressure and conducting the one-time forming process of the pipe fitting.

• Cutting the domes on the branches through the band saw and leaving a machining allowance of 2-3mm on each end according to the dimensional standards for welding joints. Below is a tee cold forming hydraulic press and tee moulds.

Figure 6.1.4.1 YK65-1600 Hydraulic Tee Cold Forming Machine

Figure 6.1.4.2 YKST65-400T Hydraulic Tee Cold Forming Machine

Figure 6.1.4.3 Tee Moulds for Cold Forming

6.1.4 Copper Nickel Tee Thermoforming Process:

• Blanking according dimensional requirements through the band saw;
• Press forming

a) Heating temperature: 900~950℃ for steel alloy pipe fittings, maintaining the temperature for 1~1.5min/mm before leaving the oven.

b) Equipment: heating oven, forklift, hydraulic press;

c) Compressing by 100~150mm according to fixtures;

d) The welding seam of tees should be placed on the opposite side of the branch outlet.3

• Bulge Forming

a) Heating Temperature: 850～900℃ for carbon steel pipe fittings, 900～950℃ for steel alloy pipe fittings, maintaining temperature for 1～1.5min/mm before leaving the oven.

b) Equipment: Heating oven, forklift, hydraulic press;

c) Fixture: Tee Forming Moulds

d) After heating the compressed pipe fitting should be lifted out of the oven and one side of the workpiece should be submerged and cooled down in the water. The submerged depth should be between half to two thirds of length of major axis of the compressed pipe fitting. After being cooled down, the workpiece will be lifted onto the tee mould while the high temperature part should be placed below and the workpiece should be completely aligned with the mould.

e) The upper slider of the hydraulic press moves down and stops at the configured position.

f)Continuous observation is required during the pressing process and the press should be stopped when wrinkles are detected.

g) Insert the pressed workpiece back into the oven and repeat step 4 and 5 after heating and maintaining temperature, until the upper and the lower tee moulds get together.

• Bulge Piercing

a) Equipment: burning torch, forklift；

b) Opening dimensions are based on the chart;

• Branch Drawing

a) Heating temperature：850～900℃ for carbon steel pipe fittings, 900～950℃ for steel alloy pipe fitting, maintaining temperature for 1～1.5min/mm before leaving the oven.

b) Equipment: heating oven, forklift, hydraulic press;

c) Fixture: tee drawing mould (with the branch facing down)

d) Conduct pressure check before drawing operations.

e) Lift the heated tee out of the oven and placed on the tee mould, and the drawing can be conducted after placing the tee drawing mould;

f) Move down the upper slider of the hydraulic press for the first drawing operation;

g) Insert the pressed tee back to the oven and repeat step 5 and 6 after heating and maintaining temperature, and then conduct the 2^nd, 3^rd, and 4^th drawing operations.

h) The maximum allowed pressure during the drawing process is 10MPa.

i) The maximum allowed velocity during the drawing process is 50mm/min.

6.1.5 Copper Nickel End Cap Forming Process:

• Cutting according to the blanking layout.
• Press forming

a) The blank is heated according to specific requirements, the heating temperature range is 850～900℃. Even temperature distribution is required for the blank and the temperature should be maintained for 1～1.5min/mm before the blank left the oven.

b) Equipment: heating oven, forklift, hydraulic press;

c) Fixture: cap forming moulds；

d) Pressing velocity:120mm/min～240mm/min.

6.1.6 Copper Nickel Reducer Forming Process:

6.2 Copper Nickel Fittings Shaping

After the  forming process, the end diameters of the pipe fittings should be inspected. If the diameters are beyond the dimensional tolerance, then the ends should be shaped through the hydraulic press and the shaping mould. After the shaping process, the end diameters as well as the roundness should not exceed the allowed range of relative standards.

6.3 Copper Nickel Fittings Heat Treatment

After the forming process, the pipe fittings should be treated with normalization and tempering while heat treatment is not necessary for forged pipe fittings after machining.

Figure 6.3.1 and 6.3.2 show the MTL-350 and MTL-2000 heat treatment oven, which are suitable for the heat treatment of all kinds of pipe fittings. The annealing temperature for copper-nickel alloy pipe fittings is 850 degree.

Figure 6.3.1 MTL-350 Heat Treatment Oven (5.6m×3.2m×3m)

Figure 6.3.2 MTL-2000 Heat Treatment Oven (14.5m×4.5m×3.5m)

6.4 Copper Nickel Fittings Surface Hardness Inspection during Production

The external surface of all pipe fittings should be inspected with a portable harness sclerometer. The inspected locations include the pipe bodies of the tee header and branch, welding seams and their heat-affected zones; the inner and outer elbow arcs, welding seams and their heat-affected zones; the top and end of the cap, welding seams and their heat—affected zones; the bigger and smaller ends of the irregular connectors, welding seams and their heat-affected zones.3~5 points should be selected on each location for inspection and the average value is selected for the hardness inspection report during production. The hardness inspection equipment is the Brinell hardness tester shown in Figure 6.4.1.

Figure 6.4.1 Brinell hardness tester

6.5 Copper Nickel Fittings Beveled

1. 1. The welding joints of the pipe fittings should be formed through machining. The dimensions of the root faces and the angles of the joints of pipe fittings produced according to the ASME B16.19 standards, should satisfy the requirements in Figure 1.

Figure 1. The joint layout of pipe fittings

1. The joint machining equipment of our company are 7 beveling machines for machining joints, some of which are shown in figures below.

Figure 6.5.1 Type-1200 Electric Beveling Machine

Figure 6.5.2 Type-920 Beveling Machine

Figure 6.5.3 Automatic CNC Machine

6.6 Copper Nickel Fittings Surface Treatment

Before the non-destructive testing of each copper-alloy pipe fitting, the mill scale and other dirt should be removed from the surface of the pipe fitting through methods such as sand blasting and polishing in order to ensure that the surface roughness satisfies the requirements of MT, UT and RT inspections. Below is the automatic sand-blasting room of our company.

Automatic Sand-blasting Room

6.7. Process Quality and Defect Treatment

• Surface Quality

1.The surface of pipe fittings should not contain cranks, overheating and over-burning defects as well as hard spots.

2.Pipe fittings should have smooth inner and outer surfaces, and should not come with strength or appearance defects, such as scabs, scratches and laps.

• Defect Treatment

1.The sharp notches, gouge marks as well as other scratches that may lead to significant stress concentration should be polished and rounded. After polishing, flaw detections should be conducted on the polished locations through penetrant inspection or magnetic powder inspection in order to make sure that defects are eliminated. Thickness measurements are then conducted on the polished locations thought he ultrasonic method in order to make sure that the remaining wall thickness is no less than the requirements on 8.1. Smooth, isolated circular bottom marks cannot be repaired through polishing.

2.Any defects on the pipe fittings cannot be repaired through welding.

3.Patch welding of seams should be conducted with low-hydrogen welding materials, the strength and ductility performance of which should satisfy the relevant standards, before the heat treatment.

4.Before patch welding, defects should be eliminated through appropriate methods. And the non-destructive testing according to the requirements of 10.4 should be conducted after patch welding. A certain defect can only be patch welded twice.

6.8 CuNi Pipe Fittings Markings

12.1 All pipe fittings supplied according to this technical specification manual should be either painted in white characters or stamped with the following contents:

1. a) Standard number;
2. b) Material number;
3. c) Specifications (outer diameter and wall thickness displayed in inches);
4. d) Name of trademark of our company;
5. e) Date of Production.

6.9 CuNi Pipe Fittings Protection and Packaging

The packing list of products should include:

• Name or trademark of our company:
• Date of Production and serial numbers;
• Name, specifications, quantity and net weight of the product;
• Owner name and contract number;
• Name and quantity of attached document:
• The packing list should include the company seal of our packing department as well as the packing date and signature of inspector.

6.10 CuNi Pipe Fittings Product Quality Certificate

Each batch of the pipe fittings manufactured according to standards should come with a quality certificate, which should include:

• Name of our company and date of production;
• Signature of the quality inspector and date of inspection as well as the company stamp of the quality inspection department;
• Name, specifications and standard number of the product;
• Chemical components and mechanical properties of the material;
• Specified inspection and testing results.

Copper Nickel Pipe Fittings Inspection

Copper Nickel Pipe Fittings Marking Packaging

copper nickel pipe fittings marking

Copper Nickel Pipe Fittings Packaging

Normal Marking: Size , Materials , Standard , Heat No..     You can also contact us for customized marking.

Packaging: Shihang emphasis on the packaging to ensure that there is no damage during transportation.

Copper Nickel pipe fittings are packed in seaworthy wooden case.

Copper Nickel Pipe Fittings Welding

If you want to know more about copper nickel pipe fittings welding , we have writing a ultimate guide for copper nickel pipe welding procedure

Please kindly check, if you have any other technical problem , you can also send you problem to our e-mail: info@shshihang.com.

Our engineer will reply you within 24 hours.

Shihang Copper Nickel Pipe Fittings Stock

Shihang , as one of the world class copper nickel fitings manufacturer and supplier, has a wide range stock of different standard.

If the quantity is big enough , the non-standard customized copper nickel elbow , tee , reducer , end cap are also available.

Any inquiry, please feel free to contact us. We will send you copper nickel pipe fittings quotation within 24 hours.

• Copper Nickel Short Radius Elbow

• Copper Nickel Long Radius Elbow

• Copper Nickel Equal Tee

• Copper Nickel Reducing Tee

• Copper Nickel Concentric Reducer

• Copper Nickel End Caps

• Copper Nickel Saddles

• ASME B16.9 Copper Nickel Stub End

Shihang Copper Nickel Pipe Fittings Main Market

Copper Nickel CuNi 90/10 C70600 Flanges Main Export Market

• Asia
• Western Europe
• North America
• Australasia
• Mid East