Copper Coated Tube Coil Small Diameter Round Pipe for Air Conditioner Refrigerator
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Product Highlights
- Dual Surface Coating Options: Available in plain steel, single/double side zinc coated, or copper coated for corrosion resistance.
- Airtight Seal Verification: All tubes undergo 1.6Mpa nitrogen seal testing to guarantee zero leakage.
- ISO 9001 & TS16949 Certified: Production meets international quality standards including ISO 9001 and TS16949 certifications.
- Wide Application Range: Suitable for AC, refrigeration, heat exchangers, hydraulic brake lines, and automotive fuel systems.
- Customizable Dimensions: Outer diameter ranges from 4mm to 10mm with wall thickness options from 0.5mm to 1.0mm.
Product Attributes
- Customization
- Available
- Type
- Welded
- Technique
- Cold Drawn
- Model NO.
- ST34-2 37-2 44-2 52-3
- Material
- Carbon Steel
- Surface Treatment
- Zinc or Copper Coated
- Usage
- Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Heat Exchanger
- Section Shape
- Round
- Standard
- GB/T24187-2009
- Certificate
- ISO 9001 Ts16949
- Secondary or Not
- Non-Secondary
- Application
- Refrigerator, Hydraulic Brake Line, Condenser
- Od
- 4-10mm
- Thickness
- 0.5-1.0mm
- Steel
- Bhg1
- Transport Package
- Iron Frame
- Specification
- OD4-10mm
- Trademark
- CW
- Origin
- China
- HS Code
- 7306301100
Product Images of Copper Coated Tube Coil Small Diameter Round Pipe for Air Conditioner Refrigerator
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Product Description
(1)plain steel tube
(2)Single side zinc coated tube
(3)Single side copper coated tube
(4)Double side copper coated tube
2.Precision Tolerance:
Outer Diameter(mm) ± 0.05mm
Wall Thickness(mm) ± 0.05mm
3.Properties:
(1)High quality raw material Charged by N2≥3Mp
(2)Good mechanical performance Sea Worthy Packing

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Dimension
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OD(mm)
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WT(mm)
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4
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0.5
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4.76
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0.6
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4.76
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0.65
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6
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0.6
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6
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0.65
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8
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0.6
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OD<8mm, use hot dipped galvanized
OD ≥ 8mm, use eletronic zinc coating(galvanizing)
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Dimension check
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Tolerance on
Outer Diameter(mm) +0.03mm -0.03mm
|
|
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Tolerance on
Wall Thickness(mm) +0.03mm -0.01mm
|
|
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Seal Airtight Test
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1.6Mpa N2,without leaking
|
|
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Inside Surface Cleanliness
(soluble residue)
(insoluble residue)
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<50mg/m²
|
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MECHANICAL
COMPOSITION(%)
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TENSILE
Rm(N/mm2)
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≥270
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YIELD
Rel(N/mm2)
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≥180
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ELONGATION
A
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(%)≥14
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CHEMEICAL COMPOSITION(%)
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C
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≤0.11%
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Mn
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≤0.4%
|
|
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S
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≤0.03%
|
|
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P
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≤0.03%
|
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Surface treatment:
copper-plated, zinc-coated, without smooth coating |
||
Description:
Electro-welded Single Wall Steel Tubing
Single wall steel tubing is the most common type of tubing used in household refrigeration applications. Bundy single wall tubing is manufactured by continuously forming a single low carbon steel strip into a tubular shape and welding the adjoining edges using a high frequency induction welding process. Through strict process controls, the internal weld bead is held to a minimum and all external flashing is removed. Corrosion resistant coatings are applied in-line to assure uniform coverage.
Application:
1.AC
2.Refrigeration
3.Heat exchanger
4.Automobile fuel lines,hydraulic brake lines
5.Compressors, etc


| hydraulic tubing | bundy tube | automotive tube |
| steel forging | pipe as per application | pipe assembly |
| precision pipe | special shape pipe | stainless pipe |
1. who are we?
We are based in Jiangsu, China, start from 2010,sell to Eastern Asia(20.00%),Mid East(20.00%),Eastern Europe(15.00%),Southeast Asia(15.00%),Northern Europe(10.00%),Domestic Market(10.00%),South America(5.00%),Western Europe(5.00%),South Asia(0.00%),North America(0.00%),Oceania(0.00%),Southern Europe(0.00%),Central America(0.00%),Africa(0.00%). There are total about 11-50 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production; Always final Inspection before shipment;
3.what can you buy from us?
Steel Pipe, Seamless Pipe, Hydraulic Oil Tube, Precision Tube, Stainless Steel Tube
4. why should you buy from us not from other suppliers?
Production: Advanced production line and drawing with special oil to make the surface in best condition. Lower roughness and good mechanical performance. Inspection before delivery: Professional team for inspection and randomly check
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,DDP,DDU; Accepted Payment Currency:USD,EUR,HKD,CNY; Accepted Payment Type: T/T,L/C,MoneyGram; Language Spoken:English,Chinese,Spanish,Japanese

Chewit International Chewit international Located in zhangjiagang city which is along The Yangtze Golden Channel the junction of River and Coast Economic Belt. It owns an excellent geographic position, as it is close to Nanjing city in the north, adjacent to Suzhou and Wuxi cities in the south, next to Shanghai international city in the east. Zhangjiagang international port and State highway endow us a convenient water and land transportation which links us to the outside world both home and aboard. Chewit International is one group company with two manufactures one is producing steel forgings for Marine, Power, Boiler, Ocean, Oil, Petrochemical, Mechanical and Hydraulic fields and the other is producing precision steel tubes for automotive industry and hydraulic system and also one semi-independent company specially for import and export business. We have a total area of 150000 square meters with the employees over 200 people. All the products well produced by our mills need to be double inspected by chewit professional quality controller and then we will offer our customer the vivid report for the tested items. Only those products which are inspected well can be allowed to delivery to our customers. By the means of strict inspection, we wined a lot of customer for long term business both home and abroad.We adhere to our company tenet Customer First, Quality formost and always try our best to serve our customer with our full heart.
About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI204814". Items marked "" are certified.
Company Profile
Chewit international has two manufacture. One is for precision stee pipe --- CW tube. Another is manufacture steel forgings.
CW tube, one of the most professional precision tube supplier in China, has a history of more than 20 years.
Our product includes cold drawn precision seamless steel tube, cold drawn welded tube, welded stainless steel tube, tube assambly. Our tubes are used for automotive industry, hydraulic system, Mechanical fields, precision device and others.
Our company covers a toal area of 10000 square meters with the asset of more than 10 million. We have around 120 employees...Due to the advanced production line and full sets of inspection equipments, the tubes produced are promised to be in high quality.
We have ten cold drawn lines, two lines of 20 tons, three lines of 10 tons, five lines of 5 tons to promise the mass output. We use special cold drawing process to make sure the inner and outer surface in low roughness. And the precision drawing mold to garanttee the minimum size tolerance.
We have heat treatment furnace with and without oxygen environment for processing. The bright annealing furnace without oxygen to ensure the tube surface condition best without oxidization and shinning like mirror.
We have a strong and responsible inspection team. All the tubes have to pass eddy current non-destructive test, and ultrosonic non-destructive test as per customer request. We check the tube size and surface 100%. Chemical and mechanical tests are carried out for each batch of tube.
Our forging manufacture covers total area above 100000m2 with with a production capacity of 90000 tons for various kinds of forgings. Also we are eligible for a total of 11 authorized patents, including 3 invention patents.
We are supplier of Wind Power, Oil & gas, Transportation, Ship building, gear box...
We own TPG, API 20B, the European PED, MAN Diesel & Turbo, Classification society: ABS, CCS, BV, DNV, GL, LR, KR, RINA, NK.
Since 2006, we have entered into global purchasing system of the most famous company.
We have established a perfect quality management system and HSE management system. We have API Q1, ISO 9001, ISO 14001: 2004, OHSAS 18001: 2007.
We always adhere to a pragmatic, integrity, unity and innovative as business philosophy.
Scientific management, improving quality, continuous improvement, and pursuit of excellence in quality, to provide customers with first-class forging products and perfect technical services.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- 73 East Changjiang Road, Deji, Jingang Town, Zhangjiagang City, Suzhou, Jiangsu, China
-
Plant Area
- 100 square meters
-
Number of Employees
- 6
-
Registered Capital
- 3,000,000 RMB
-
Terms of Payment
- LC, T/T
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR
-
Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: one month -
Nearest Port
- shanghai
Our Production Capability & Technical Expertise
-
Main Products
- Carbon Seamless Pipe, Steel Forging, Stainless Tube
-
Production Machines
- Cutting Machine, Heat Treating Machine, Stretching Machine, Straightening Machine, Diagnostic Machine, Cutting Machine, Hydraulic Universal Testing Machine
-
OEM Service Available
- Yes
-
Test Reports for Raw Materials
- RoHS, Others
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2010-01-12
- Export Year
- 2013-08-01
-
Main Markets
- North America, South America, Europe, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea)
-
Number of Foreign Trading Staff
- 4
-
Overseas Agent/Branch
- No
FAQ
- Who are we?
- We are based in Jiangsu, China, established in 2010, with 11-50 office staff and sales reaching Eastern Asia, Mid East, Eastern Europe, Southeast Asia, Northern Europe, and South America.
- How can you guarantee quality?
- We always produce a pre-production sample before mass production and conduct a final inspection before shipment.
- What can you buy from us?
- We supply Steel Pipe, Seamless Pipe, Hydraulic Oil Tube, Precision Tube, and Stainless Steel Tube.
- Why should you buy from us not from other suppliers?
- We use advanced production lines with special oil for best surface condition, low roughness, and have a professional inspection team for random checks.
- What services can you provide?
- We accept delivery terms like FOB, CFR, CIF, EXW, DDP, DDU; payment currencies USD, EUR, HKD, CNY; and payment types T/T, L/C, MoneyGram.
- What is the surface treatment for this tube?
- Options include copper-plated, zinc-coated, or without smooth coating, applied in-line for uniform coverage.
- What are the mechanical properties of the tube?
- The tube features a tensile strength of at least 270 N/mm2, yield strength of at least 180 N/mm2, and elongation of at least 14%.
- What is the lead time for production?
- The average lead time is one month for both peak and off-peak seasons.
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