Smooth and innergrooved tubes

K65 - Sustainable and efficient

Sustainable and efficient – two keywords that have had a decisive impact on our time and have gained in relevance in recent years, especially in refrigeration. Increased environmental awareness in society and industry has therefore led to a kind of renaissance of natural refrigerants, especially CO₂. Wieland supports this turnaround with a tube system that meets the high requirements of CO₂ as a refrigerant.

Wieland K65 tubes have been designed for CO₂ applications in the commercial field, especially that of supermarket refrigeration systems. Wieland K65 alloy provides the mechanical strength high enough to withstand the high operating pressures of CO₂. At the same time, K65 tubes have outstanding processing properties, similar to those of standard copper (Cu-DHP/C12200). 

All Wieland K65 tubes are available in the soft condition (R300/O61) to ensure excellent bending / flaring and collaring properties.

Wieland K65 tubes are offered from stock in two pressure ranges, 80 bar and 120 bar, and in dimensions ranging from 3/8” up to 2-1/8”.

Moreover, K65 tubes are also available in individual dimensions and different delivery forms.
For industrial processing, in particular CO₂ heat exchanger (evaporator / gas cooler) manufacturing, level wound coils (LWC) are offered.

More K65 products in other categories

• K65 in Refrigeration and medical gas tubes
• K65 Industrial tubes innergrooved

Your benefits

• Pressure resistance tailormade to your needs
• Cost reduction through weight reduction
• Proven processing technology: brazing instead of welding!
• Excellent heat transfer
• Design according to EN 14276 - TUEV or UL certification on demand

Typical applications

• Components of R744 refrigeration systems
• Fin coil heat exchangers for higher operation pressures (e.g. R744 evaporators or gas coolers )
• Shell and tube heat exchangers for higher operation pressures (e.g. R744 evaporators or gas coolers)

Technical properties

• Material: K65
• Conditions: soft R300/O61 and hard R420/H80 
• Delivery form: Level wound coils or straight lengths
• Coil weights: 100 kg, 150 kg, 300 kg
• Available dimensions: 5 - 28 mm for LWC; 5 - 110 mm for straight lengths
• Usual standards: EN 12735-1 / EN 14276 / ASTM B 1017

Further information

• K65 Brochure
• Saxonia Brazing recommendation
• K65 Website

cuproclima

For high-quality seamless inside smooth or innergrooved copper tubes in level-wound coils for the refrigeration and air-conditioning industries. The specified quality and inspection criteria exceed the existing requirements of standards (e. g. EN 12735-2, ASTM).

Your benefits

• longer run time for machines when uncoiling tubes
• reduced scrap for finished products
• reduced set-up time
• detection of even smaller surface defects on the tubes
• possible malfunctions of finished equipment during pressure testing are reduced
• fewer impurities in the refrigerant circuit.

Fields of application

• air-cooled heat exchangers for the air-conditioning and refrigeration industry
• evaporators
• condensers
• heat exchangers
• air coolers

Technical Properties

• Materials Cu-DHP
• Conditions soft and extra soft
• Delivery form level wound coils only
• Coil weights  100 kg, 150 kg, 300 kg
• Available dimensions 4 - 28 mm, wall thicknesses on request

Copper tubes with ultra clean inner surface for industrial applications

Our innovative production process for cuproclean tubes removes carbon film. This results in higher reliability, longer life and reduced maintenance costs.It is suitable for all fresh water applications. Copper offers outstanding versatility and is characterized by excellent formability as well as good processing properties. cuproclean copper tubes are also available in combination with other qualities such as cuproform.

Your benefits

• ultra-clean tube surface free from carbon film
• highest reliability and longer life also in fresh water applications
• best corrosion resistance
• carbon film test according to EN 1057 and confirmation in the certificate

Fields of application

• cooling ceilings
• solar water heating systems
• heat generators

Technical properties

• Materials Cu-DHP 
• Conditions Soft 
• Delivery form Level wound coils 
• Coil weights 100 kg, 150 kg, 300 kg
• Available dimensions 6 - 28 mm, wall thicknesses on request

High formable copper tubes

In boiler manufacture, for example the tubes may be formed by: expanding, bending, upsetting and beading. Industrial copper tubes from conventional production do not always meet these high demands. Therefore, it is often necessary to use additional fittings made from other materials. This results in further production steps and consequently higher production costs.

Your benefits

• no special fittings necessary; this results in lower costs of production
• higher added value in your production
• exceptional forming properties – 80% expansion of the tube end tested and certified on the inspection certificate
• less scrap with very high deformation

Fields of application

• Connecting pieces, e.g. especially for boilers

Technical properties

• Materials Cu-DHP 
• Conditions soft and extra soft
• Delivery form Layer-wound coils and straight lengths
• Coil weights 100 kg, 150 kg, 300 kg, 530 kg
• Available dimensions 6 - 28 mm for LWC; 6 - 64 mm for straight lengths

Copper tubes with high-purity outer surface for solar thermal applications

In the process of manufacturing solar heat absorbers requirements vary depending on the application. In the solarclean family you will find the most suitable copper tube quality for your optimized fabrication.

solarclean classic
The particularly clean tube surface ensures a high quality weld. You can therefore save at least one cleaning operation or an extensive pre-treatment of the components to be welded.

solarclean HP
For heat pipes in vacuum tube collectors - highest surface cleanliness on tube outside and inside prevents contamination of the heat transfer medium in the heat pipe and yet ensures the efficiency of the system.

solarclean plus
Improved forming properties for the fabrication of meander-shaped absorber tubes facilitate the setting of the bending machines and increase process reliability. solarclean_plus ensures super clean tube surfaces substantially improving the ultrasonic welding process.

solarclean eco
The cost-effective alternative for laser welding of absorber plate and tubing with sufficient cleanliness.

solarclean SL
Like solarclean classic, solarclean SL ensures superclean tube surfaces. Depending on your fabrication needs, you can also order solarclean in straight lengths.

Technical properties

• Materials Cu-DHP 
• Conditions hard, hard relaxed, half-hard
• Delivery form Layer-wound coils and straight lengths
• Coil weights 100 kg, 150 kg, 300 kg, 530 kg
• Available dimensions 6 - 15 mm; wall thicknesses 0.3-1.2 mm

K65 - Sustainable and efficient

two keywords that have had a decisive impact on our time and have gained in relevance in recent years, especially in refrigeration. Increased environmental awareness in society and industry has therefore led to a kind of renaissance of natural refrigerants, especially CO₂. Wieland supports this turnaround with a tube system that meets the high requirements of CO₂ as a refrigerant.

Wieland K65 tubes have been designed for CO₂ applications in the commercial field, especially that of supermarket refrigeration systems. Wieland K65 alloy provides the mechanical strength high enough to withstand the high operating pressures of CO₂. At the same time, K65 tubes have outstanding processing properties, similar to those of standard copper (Cu-DHP/C12200). 

Innergrooved K65 tubes for manufacturing of CO₂ heat exchangers (evaporator / gas cooler) are available in individual dimensions. These are delivered in level wound coils (LWC) or straight lengths alternatively.

Wieland K65 tubes are also available from stock in standard dimensions.

More K65 products in other categories

• K65 in Industrial tubes smooth
• K65 in Refrigeration an medical gas tubes

Your benefits

• Pressure resistance tailormade to your needs
• Cost reduction through weight reduction
• Proven processing technology: brazing instead of welding!
• Excellent heat transfer
• Design according to EN 14276 - TUEV certification on demand

Typical applications

• Fin coil heat exchangers for higher operation pressures (e.g. R744 evaporators or gas coolers)
• Shell and tube heat exchangers for higher operation pressures (e.g. R744 evaporators or gas coolers)

Technical properties

• Materials: K65
• Conditions: soft R300/O61 and hard R420/H80
• Delivery form: Level wound coils or straight lengths
• Coil weights: 100 kg, 150 kg, 300 kg
• Available dimensions: 5 - 16 mm
• Usual standards: EN 12735-1 / EN 14276 / ASTM B 1017

Further information

• K65 Brochures
• Saxonia Brazing recommendation
• K65 Website

cuprofin-Standard

Wieland cuprofin-Standard tubes are effiecient heat exchanger tube that are suitable for one and two-phased flow as well as for evaporation and condensation. This enables the flexible production of efficient and compact heat exchangers. There is no need to keep a stock of different specialized tube types.

Your benefits

• improved heat transfer due to fin structure on the inside of the tube
• compact heat exchanger construction
• reduced material input
• Internal structure suitable for evaporation, condensation and single-phase heat transfer

cuprofin-standard is also available in superclean quality and as a microgroove tube.

Fields of application

• Finned heat exchangers for the refrigeration/air conditioning industry
• Evaporator
• Condensers
• Recooler
• Air Cooler
• Tube bundle injection evaporator
• Heat exchangers in the form of coiled elements (e.g. container heating and cooling)

Technical properties

• Delivery form Layer-wound coils and straight lengths up to 7,9m
• Coil weights 100 kg, 150 kg, 300 kg
• Usual standards
  • EN 12735-2
  • ASTM B359
  • VdTÜV 420/6, 420/7

Further Information

• cuprofin

cuprofin-C tubes for condensors

Wieland cuprofin-C Tubes are highly efficient heat transfer tubes for the tube-side condensation of refrigerants. Depending on the fluid used, the fins on the inside of the tube are optimized for high performance with low material usage. They enable the design of highly efficient and compact heat exchangers.

Your benefits

• optimized heat transfer due to adapted fin structure on the inside of the tube
• compact heat exchanger construction
• reduced refrigerant charge
• reduced material input

cuprofin-C is also available in superclean quality and as microgroove tube.

Fields of application

• Finned heat exchangers, especially condensers
• Heat exchangers in the form of coiled elements (e.g. container heating)

Technical properties

• Delivery form Layer-wound coils and straight lengths up to 7,9m
• Coil weights 100 kg, 150 kg, 300 kg
• Usual standards
  • EN 12735-2
  • ASTM B359
  • VdTÜV 420/6, 420/7

Further Information

• cuprofin-C

cuprofin-E tubes for evaporators

Wieland cuprofin-E tubes are highly efficient heat transfer tubes for the tube-side evaporation of refrigerants in finned heat exchangers. The fins on the inside of the tubes are designed for optimum performance during flow boiling and the lowest possible pressure drop for a wide range of refrigerants.

Your benefits

• optimized heat transfer due to adapted fin structure on the inside of the tube
• compact heat exchanger construction
• extremely low pressure drop
• reduced material input

cuprofin-E is also available in superclean quality and on requiry as a microgrooved tube.

Fields of application

• Finned heat exchangers, especially evaporators

Technical properties

• Delivery form Layer-wound coils and straight lengths up to 7,9m
• Coil weights 100 kg, 150 kg, 300 kg
• Usual standards
  • EN 12735-2
  • ASTM B359
  • VdTÜV 420/6, 420/7

Further Information

• cuprofin-E

cuprofin-EDX tubes for injection

cuprofin-EDX are highly efficient and stable heat exchanger rubes for Injection evaporator in tube bundle design.

Your benefits

• optimized heat transfer and very low pressure drop
• compact heat exchanger construction
• reduced material input  

cuprofin-EDX is also available in superclean quality and on request as a microgroove tube.

Fields of applications

• Tube bundle injection evaporator

Technical properties

• Delivery form Layer-wound coils and straight lengths up to 7,9m
• Coil weights 100 kg, 150 kg, 300 kg, 530 kg
• Usual standards
  • EN 12735-2
  • ASTM B359
  • VdTÜV 420/6, 420/7

Further Information

• cuprofin-EDX

cuprofin-G tubes for single-phase heat transfer

Wieland cuprofin-G Tubes are highly efficient heat transfer tubes, especially designed for recooling systems and air coolers. The fins on the inside of the tubes are optimized for single-phase heat transfer of aqueous media such as water-glycol mixtures. This enables the production of efficient and compact heat exchangers.

Your benefits

• optimized heat transfer through adapted fin structure on the inside of the tube
• compact heat exchanger construction
• low pressure drop
• reduced material input

cuprofin-G is also available in superclean quality.

Fields of application

• Finned heat exchanger with single-phase heat transfer
• Recooler
• Air cooler

Technical properties

• Delivery form Layer-wound coils and straight lengths up to 7,9m
• Coil weights 100 kg, 150 kg, 300 kg
• Usual standards
  • EN 12735-2
  • ASTM B359
  • VdTÜV 420/6, 420/7

Further Information

• cuprofin-G

cuprofin-L10 tubes for seawater applications

Wieland cuprofin-L10 tubes are efficient heat transfer tubes which are particularly suitable for applications with seawater and other salt water as well as in their surroundings (e.g. coastal areas). The material CuNi10Fe1Mn (Wieland L10) is highly resistant to corrosion and erosion in these fluids. Compared to stainless steels the thermal conductivity of L10 is higher by a factor of approx. 3.

Your benefits

• improved heat transfer due to fin structure on the inside of the tube
• compact heat exchanger construction
• reduced material input
• highly resistant to corrosion and erosion

cuprofin-L10 is also available in superclean quality.

Fields of application

• Finned and bundle tube heat exchangers that are operated with seawater or other saltwater, or installed in coastal areas

Technical properties

• Delivery form Layer-wound coils and straight lengths up to 7,9m
• Coil weights 100 kg, 150 kg, 300 kg
• Usual standards
  • EN 12735-2
  • ASTM B359.
  • VdTÜV 420/6, 420/7

Further Information

• cuprofin-L10

microgroove - Small diameter, high performance

With microgroove technology you build your heat exchanger with maximum efficiency and maximum compactness.

Your benefits

• reduced refrigerant charge
• Increased efficiency of the heat exchanger
• compact heat exchanger construction
• reduced material input
• reduced investment costs

microgroove is also available in superclean quality.

Fields of application

• Highly efficient finned heat exchangers
• Evaporator
• Condensers

Technical properties

• Delivery form Layer-wound coils and straight lengths up to 7,9m
• Coil weights 100 kg, 150 kg, 300 kg
• Usual standards
  • EN 12735-2
  • ASTM B359
  • VdTÜV 420/6, 420/7

Further Information

• microgroove

For a more sustainable future in construction.

With its 100 % share of recycled material, the cuprolife copper tube makes a sustainable difference, and thus makes a significant contribution to the advancement of building and construction as well as building services. 

Every cuprolife tube from Wieland is manufactured in keeping with the mass balance approach – using a process with 100 % recycled copper. As the starting point when verifying cuprolife, TÜV SÜD tested the procedure for calculating the 100 % recycled content*.

The new standard in copper tubes: cuprolife^®.

Thanks to cutting-edge manufacturing techniques, cuprolife tubes exceed even the highest requirements. Optimal efficiency and reliability are guaranteed along with an exceptional service life. cuprolife tubes are universally usable. cuprolife is permanently in stock and can be supplied in any size from 6 x 1 mm to 159 x 3 mm.

Fields of application

• Domestic hot and cold water supply
• Heating
• Gas
• Liquid gas
• Heating oil / biofuel oil B10
• Solar systems
• Rainwater
• Industrial compressed air
• Sprinkler systems
• Firefighting systems

Technical features

• 100 % recycled copper*
• Design according to EN 1057, quality assured
• Made of pure copper Cu-DHP
• With quality mark and DVGW certification: DV-7204AU2106 (6 to 159 mm outside diameter)
• Universal use in a range of finely differentiated dimensions
• Optimum availability and compatibility with a wide range of fittings
• Maximum operating temperature at 10 bar operating pressure: 250 °C (applies to dimensions up to DN 150)
• Fire resistance: EN 13501-1 – A1 (nonflammable)
• Dimensions according to DVGW GW 392 (6 to 159 mm) with closed tube ends
• For optimal drinking water hygiene

*Mass balance approach, based on ISO 14021, verified by TÜV SÜD.

Learn more

Reliable for all areas of home installation

For many years, installers have been relying on SANCO branded copper tubes. The tubes are very reliable, suitable for all areas of domestic installation and have more than proven their worth in practice. Whether drinking water supply (hot and cold), heating systems, oil, gas and liquid gas supplies as well as thermal solar systems: Wieland SANCO tubes are always the right choice and, of course, covered by the relevant regulations.

Technical features

• Patented manufacturing process: SANCO tubes are significantly better than required by standards and regulations.
• Design according to EN 1057, quality assured
• Made of pure copper Cu-DHP
• With quality mark and DVGW certification:
  DV-7204AU2106 (12 to 159 mm outside diameter).
• Universal use in a range of finely differentiated dimensions
• Optimum availability and compatibility with a wide range of fittings
• Maximum operating temperature: 250 °C 
• Fire resistance: EN 13501-1-A1 (non-flammable)
• Dimensions according to DVGW GW 392 (12 to 159 mm) with closed tube ends
• For optimal drinking water hygiene
• Wide range of certifications available, such as Kitemark, Afnor, KIWA, DVGW and many others

Fields of application

• Domestic hot and cold water supply
• Heating systems
• Gas and oil services for heating and cooking
• Solar systems
• Rainwater
• Industrial compressed air
• Sprinkler and Fire-fighting-systems
• Further applications in consultation with our technical advisory service

WICU

WICU tubes a have a mill-applied protective coating. They are therefore suitable for concealed installation under plaster or in environments with an aggressive atmosphere, and for installation outdoors, either above or below ground. 

Technical features

• Design according to EN 1057, quality assured
• Made of pure copper Cu-DHP
• With quality mark and DVGW certification:
• DV-7204AU2106 (12 to 42 mm outside diameter).
• Protective coating conforms to EN 13349 and DIN 30672-1 class B
• Reduction of condensation
• Fire resistance: EN 13501-1-E
• Color of coating: light gray
• Temperature range up to 100 °C

Fields of application

• Domestic hot and cold water supply
• Heating systems
• Gas and oil services for heating and cooking
• Rainwater
• Industrial compressed air
• Further applications in consultation with our technical advisory service

WICU Flex

WICU Flex is a plumbing tube with a flexible coating for rapid installation. The coating consists of closed-cell PE foam covered by a structured protective film. WICU Flex is supplied in coils for rapid connection to manifolds etc. and for underfloor installations.

Technical properties

• Design according to EN 1057, quality assured
• Made of pure copper Cu-DHP
• With quality mark and DVGW certification:
  DV-7204AU2106 (12 to 22 mm outside diameter)
• CFC/FKW-free polyethylene foam (PE) with a
• PE structural foil
• Sound insulation: DIN 4109 - A1
• Thermal conductivity of the insulation layer according to DIN 52613:
  = 0.040 W/mK at 40 °C
• Fire resistance: N 13401-1-E
• Color of coating: white
• Temperature application range: up to 100 °C

Fields of application 

• Connecting tubes
• Domestic hot and cold water supply
• Central heating systems

cuprotherm CTX

cuprotherm CTX tubes are copper tubes with a firmly adhering coating. Due to their structure, they are very easy to process and are characterized by a flexibility so far unknown for metal tubes. CTX tubes are a technically high-quality and at the same time economically interesing solution: They offer an attractive price per meter for copper tubes at stable conditions, and are therefore also convincing in terms of reliability in planning. 

Technical features

• Flexible copper tube made of pure copper Cu-DHP
• Temper: soft R220 according to EN 1057 with firmly adhering coating made of PE-RT 
• Fire behavior EN 13501-1, class E
• Color of the coating: white, similar to RAL 9010 (pure white)
• Temperature application range: up to 100 °C

Fields of application

• Heating
• Cooling
• Radiator connection
• Rainwater harvesting systems
• Ground collectors (water/glycol)
• Concrete core activation

cuprotherm.plus

cuprotherm is Europe's most frequently installed copper underfloor heating system, and for good reason. The outstandingly long service life of cuprotherm copper tubes will make you forget about surface heating for decades after it has been installed. Due to the highest thermal donductivity in technical materials, efficient use for this application is also good for the wallet in the long run. 

The orange coating provides mechanical and chemical protection from the outside and allows the cuprotherm tube to expand unhindered in length when the temperature changes. 

Technical properties

• Design according to EN 1057
• Fire resistance: EN 13501-1-E
• Building material class: DIN 4102 - A1
• With quality mark
• Diffusion rate: 0.00 mg/m²*d after 50 years

Fields of application

• Surface heating and cooling
• Wall heating
• Industrial surfaceheating
• Sports floor heating

cuprotherm.blank

cuprotherm is Europe's most frequently installed copper underfloor heating system, and that for good reasons. The oustandingly long service life of cuprotherm copper tubes will make you forget about surface heating for decades after it has been installed. Due to the highest thermal conductivity in technical materials, efficient use for this application is also good for the wallet in the long run. 

The bare copper tube also withstands high temperatures and is therefore the first choice in applications with mastic asphalt.

Technical properties

• Design according to EN 1057
• Fire resistance: EN 13501-1-A1 (non-flammable)
• With quality mark
• Diffusion rate: 0.00 mg/m²*d after 50 years

Fields of application

• Underfloor heating with mastic asphalt screed
• Wall heating with clay plaster

cuprofrio – refrigeration

Wieland branded copper tubes cuprofrio and cuprofrio.plus have a high level of internal cleanliness due to the individually closed tube ends and are suitable for refrigerants according to EN 12735-1.
cuprofrio tubes can be easily processed on site and conform to high quality standards with their extremely clean and dry inner surface. Close tube ends ensure the required quality even during storage and transportation.

learn more

Your benefits

• clean and dry inside surface
• closed tube ends in order to maintain cleanliness
• supplier traceability through signature
• standard dimensions available from stock
• good processing, easy joining, very easy to unwind and bend
• tube quality according to EN 12735-1
• compliance with Pressure Equipment Directive 2014/68/EU

Fields of application

cuprofrio is suitable for technical gases and liquids, for example in

• chillers
• air-conditioning and refrigeration units
• heat exchangers

Forms of delivery

• Coils (pancakes)
• Straight lengths of 5 m

learn more

cuprofrio.plus

Wieland branded copper tubes cuprofrio and cuprofrio.plus have a high level of internal cleanliness due to the individually closed tube ends and are suitable for refrigerants according to EN 12735-1.
cuprofrio tubes can be easily processed on site and conform to high quality standards with their extremely clean and dry inner surface. Close tube ends ensure the required quality even during storage and transportation.

learn more

cuprofrio.plus

cuprofrio.plus-tubes are insulated on the outside, which prevents nearly all water condensation on the outer surface of the tube.

Your benefits

• clean and dry inside surface
• standard dimensions available from stock
• good processing, easy joining, very easy to unwind and bend
• resistant, colour-fast insulation ensures consistent material properties in all weather conditions
• prevention of condensation water through insulating layer
• supplier traceability through signature
• compliance with Pressure Equipment Directive 97/23/EC

Fields of application

cuprofrio is suitable for technical gases and liquids, for example in

• chillers
• air-conditioning and refrigeration units
• heat exchangers

learn more

cupromed – medical gas supply

The seamless drawn cupromed copper tube is used for refrigeration/air conditioning as well as for medical gas supply units according to EN ISO 7396-1. cupromed tubes in straight lengths meet the requirements according to EN 13348 and those according to EN 12735-1.

Your benefits

• clean and dry inside surface
• closed tubes ends keep the surface clean
• supplier traceability through signature
• standard dimensions available from stock
• good processing, easy joining, very easy to unwind and bend
• standard tube quality according to EN 12735-1
• compliance with Pressure Equipment Directive 2014/68/EU
• Requirements according to the PED/Pressure Equipment Directive 2014/68/EU

Fields of applications

cupromed is suitable for the transportation of technical gases and liquids as well as medical gas and vacuum in

• medical gas supply units
• refrigeration and air conditioning units

cuprogeo – geothermal energy

The seamless drawn cuprogeo tube is used for geothermal energy production. cuprogeo is designed for the use of refrigerants and gases for direct evaporation in heat pumps. The advantage of this application is that high performance can be achieved with suitable heat pumps.

Your benefits

• clean and dry inner surface
• supplier traceability through signature
• tube protected by an outside surface coating
• standard tube quality according to EN 12735-1
• requirements comply with the Pressure Equipment Directive 2014/68/EU

Fields of application

• geothermal energy
• refrigeration equipment and heat exchangers
• geothermal heat pumps with direct evaporation

K65 - Sustainable and efficient

two keywords that have had a decisive impact on our time and have gained in relevance in recent years, especially in refrigeration. Increased environmental awareness in society and industry has therefore led to a kind of renaissance of natural refrigerants, especially CO2. Wieland supports this turnaround with a tube system that meets the high requirements of CO2 as a refrigerant.

Wieland K65 tubes have been designed for CO2 applications in the commercial field, especially that of supermarket refrigeration systems. Wieland K65 alloy provides the mechanical strength high enough to withstand the high operating pressures of CO2. At the same time, K65 tubes have outstanding processing properties, similar to those of standard copper (Cu-DHP/C12200). 
Wieland K65 tubes are offered from stock in two pressure ranges, 80 bar and 120 bar, and in dimensions ranging from 3/8” up to 2-1/8”.

All Wieland K65 tubes are available in the soft condition (R300/O61) to ensure excellent bending / flaring and collaring properties.

Other dimensions and delivery forms such as level wound coils are offered for industrial processing, in particular manufacturing of CO2 heat exchangers (evaporator/gas cooler).

More K65 products in other categories

• K65 Industrial tubes smooth
• K65 Industrial tubes innergooved

Your benefits

• Cost reduction through weight reduction
• Proven processing technology: brazing instead of welding!
• Economical and safe installation of regrigeration systems with up to 120 bar operation pressure
• Excellent heat transfer
• Design according to EN 14276 

Typical applications

• Pipelines for refrigeration systems, in particular for CO2 refrigerant, with an operation pressure of up to 120 bar

Technical properties

• Material: K65
• Operation pressure: 80 bar and 120 bar
• Condition: soft R300/O61
• Delivery form: straight lengths of 5 m
• Available dimensions: 9,52 - 53,97 mm (3/8" - 2-1/8")
• Tube ends: closed
• Usual standards: EN 14276 / EN 12735-1 

Further information

• K65 Brochure
• Saxonia Brazing recommendation
• K65 Website

We manufacture seamless tubes with outer diameters up to 320 mm. They are suitable for electrical engineering and telecommunications, heat transfer and apparatus engineering.
Low-alloy copper materials with higher strength serve as brake line tubes in motor vehicles.

We have specialties such as dezincification-resistant materials in our range, and alloys with high wear resistance, as used in crude oil production.

Handrails, shower bars, towel rails, handgrip elements, water inlets and outlets, drains, decorative claddings: For these and many other products, the metal
The metal goods industry uses tubes made of copper alloys for these and many other products.
 

What is a profile tube?
Profile tubes are manufactured from round pressed or also drawn tubes. Depending on the requirements, the final shape is produced by cold forming in various processing steps.
produced. This makes sectional tubes a sensible, cost-effective addition to conventional
extruded profiles. 
Complex geometries, thin walls, high precision. 

Areas of application
Wieland sectional tubes made of copper materials are mainly used in industries that place special demands on the material and have to ensure high reliability of the end product
reliability of the end product: These include electronics and electrical engineering, the sanitary industry or architecture.
Other possible applications for our profile tubes are in model making, medical technology, automotive engineering and the manufacture of writing instruments or musical instruments. In particular
For foundry applications, Wieland also manufactures large, square or round profile tubes for ingot molds.

Dimensions
Production is carried out according to your drawing. 
Profile tubes can be manufactured from round tubes with a diameter of 5 mm up to a diameter of 230 mm. Depending on the alloy or diameter, the wall thickness may be
can be selected between 0.1 mm and 15 mm. The inner cross-section must be at least 5 mm2 and the smallest diameter of the circumscribed circle at least
5 mm. The ratio of the largest circumscribing circle to the smallest wall thickness must not exceed 125:1. We supply profiled tubes up to 10 m long, in exceptional cases up to
in exceptional cases up to 18 m.

Materials
Starting materials for sectional tubes are primarily copper materials or lead-free brasses. Depending on the application, other material groups may also be used:

• leaded machining brasses
• special alloys 
• tin bronzes 
• New silver

The good cold formability of the material extends the design possibilities for the
in the design of the sectional tubes.
Depending on the application and the resulting requirements on the material
on the material, the profiles can be designed in different strength states
from soft to hard;

We will be pleased to advise you on our alloys and dimensions 
 

Safely protected ! 
The packaging 

By choosing the right packaging, your individual needs for transport, storage and processing can be taken into account. 
Thus, the excellent product quality is preserved and a comfortable processing is made possible. 
Based on our experience, we offer you proven packaging materials - we are also happy to find an individual solution. 

Each package is labeled on the front side to ensure clear identification and traceability. 

Sustainable by conviction: 
Wieland uses reusable packaging for the most part to protect the environment.  
This also benefits you - you save disposal costs. 

Typical packaging forms for tubes and profile tubes in straight lengths