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.

Copper Coated Tube Coil Small Diameter Round Pipe for Air Conditioner Refrigerator

Name: Copper Coated Tube Coil Small Diameter Round Pipe for Air Conditioner Refrigerator
Brand: Zhangjiagang Chewit International Co., Ltd.
SKU: 2135874275

Jiangsu, ChinaZhangjiagang Chewit International Co., Ltd.

US$1.50-3.00

1,000 kg

Product profile

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

Origin

China

HS Code

7306301100

Key features

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.

Company profile

Zhangjiagang Chewit International Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: OEM Service AvailableExport Year: 2013-08-01 CertifiedNearest Port: shanghaiAverage Response Time: ≤4.74h 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: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.

Q:How can you guarantee quality?

We always produce a pre-production sample before mass production and conduct a final inspection before shipment.

Q:What can you buy from us?

We supply Steel Pipe, Seamless Pipe, Hydraulic Oil Tube, Precision Tube, and Stainless Steel Tube.

Q: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.

Q: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.