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Od 4.76mm 6mm 8mm Refrigerator Pipe Galvanizing Copper Coated Bundy Tube
US$1.50-3.00
1,000 kg
Product profile
Customization
AvailableType
WeldedTechnique
Cold DrawnModel NO.
ST34-2 37-2 44-2 52-3Material
Carbon SteelSurface Treatment
Zinc or Copper CoatedUsage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Heat ExchangerSection Shape
RoundStandard
GB/T24187-2009Certificate
ISO 9001 Ts16949Secondary or Not
Non-SecondaryApplication
Refrigerator, Hydraulic Brake Line, CondenserOd
4-10mmThickness
0.5-1.0mmSteel
Bhg1Transport Package
Iron FrameSpecification
OD4-10mmTrademark
CWOrigin
ChinaHS Code
7306301100Key features
Airtight Seal Verification: Seal tested with 1.6Mpa N2 to ensure zero leakage.
High Frequency Welding: Edges welded using high frequency induction process for minimal internal bead.
Corrosion Resistant Coating: Uniform copper-plated or zinc-coated surface for enhanced durability.
Strict Quality Inspection: Double inspection by professional controllers with vivid test reports.
OEM Service Available: Customization services available for specific manufacturing needs.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: OEM Service AvailableExport Year: 2013-08-01 CertifiedNearest Port: shanghaiAverage Response Time: ≤5.71h CertifiedTerms of Payment: LC, T/T
AI-Powered supplier vetting
SummaryZhangjiagang Chewit is a China-based limited trading company established in 2010, with stated precision-tube and steel-forging manufacturing activities. The supplier reports ISO9001:2015 certification, more than 10 production lines, approximately 5,000 tons of annual seamless-steel-pipe productivity, broad export-market coverage, and one-month lead times in both peak and off-peak seasons. Its quality claims include 100% dimensional and surface checks, batch chemical and mechanical testing, and non-destructive testing upon request. Evidence is insufficient to assess after-sales service, financial credibility, and customization capability. Innovation evidence is limited to an associated forging operation reporting 11 authorized patents, while customer evidence consists of one listed buyer and one trade transaction.
Supplier typeThe supplier is identified as a China-based limited company and trade company, with stated manufacturing activities in precision steel tubes and forgings. Its product scope includes seamless, welded, carbon, stainless, hydraulic, cold-drawn, and precision tubes, indicating a specialized steel-product supplier with both trading and manufacturing positioning.
CertificationsThe supplier explicitly reports an ISO9001:2015 management-system certificate. It also describes inspection and industry-related qualifications associated with its forging operation, including API 20B, PED, and classification-society credentials, although the scope and holder of each qualification are not separately specified.
R&D capabilityThe supplier describes advanced production and inspection equipment, precision-tube manufacturing, and a forging operation with 11 authorized patents, including three invention patents. These statements provide explicit but limited evidence of process and product-development capability, mainly linked to the forging operation rather than clearly to the entire supplier entity.
Production capacityThe supplier reports more than 10 production lines, annual seamless-steel-pipe productivity of 5,000 tons, heat-treatment furnaces, inspection equipment, and manufacturing of precision tubes and forgings. The descriptions also cite a 10,000-square-meter tube operation and a substantially larger forging facility, although employee and facility figures are inconsistent across slices and should be verified.
Client casesThe supplier states that it serves wind power, oil and gas, transportation, shipbuilding, and gearbox sectors and has entered the global purchasing system of a major company since 2006. The trade data identifies one buyer and one transaction, so sector references are available but the breadth and depth of verifiable customer cases remain limited.
Product Q&A
Q:What is the available outer diameter range?
A:
The outer diameter ranges from 4mm to 10mm, with specific sizes including 4, 4.76, 6, and 8mm.
Q:What surface treatments are applied based on size?
A:
For OD less than 8mm, hot dipped galvanizing is used; for OD greater than or equal to 8mm, electronic zinc coating is applied.
Q:What are the mechanical properties of the tube?
A:
The tube has a tensile strength of at least 270 N/mm2, yield strength of at least 180 N/mm2, and elongation of at least 14%.
Q:What is the wall thickness range?
A:
The wall thickness ranges from 0.5mm to 1.0mm depending on the specific outer diameter.
Q:Is OEM service available for this product?
A:
Yes, OEM service is available for this product to meet specific customer requirements.
Send Inquiry
*To:
Zhangjiagang Chewit International Co., Ltd.
Zhangjiagang Chewit International Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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