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Smooth Outside Cold Drawn Seamless Carbon Steel Pipe for Vehicle Fuel System
US$1.50-7.00
1,000 kg
Product profile
Customization
AvailableType
SeamlessTechnique
Cold DrawnModel NO.
TU37b TU52bMaterial
Carbon SteelSurface Treatment
Bright Annealing, Black Phosphating, GalvanizingUsage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Heat ExchangerSection Shape
RoundStandard
DIN 2391 1629 1630 2445 73000Delivery Condition
Bk, Gbk, Bkw, Bks or NbkSteel Grade
St35 45 52 37.4 44.4 52.4Certificate
ISO 9001 Ts16949Secondary or Not
Non-SecondaryApplication
Automotive, Hydraulic System and Precision DeviceTransport Package
Plywood Box or BundlesSpecification
OD2-60mmTrademark
CWOrigin
ChinaHS Code
7304319000Key features
Precision Cold Drawn Process: Ensures precise size, low surface roughness, and excellent mechanical performance.
Wide Material Selection: Available in Carbon Steel, Alloy Steel, and Stainless Steel grades.
Comprehensive Surface Treatment: Options include Bright Annealing, Black Phosphating, and Galvanizing.
Strict Quality Inspection: 100% Eddy Current Test and Size/Surface checking with EN 10204 3.1 certificates.
Automotive Grade Standards: Meets DIN, ASTM, JIS, and ISO standards for vehicle fuel and hydraulic systems.
Diverse Application Scope: Suitable for automotive, hydraulic, aerospace, and machinery industries.
Customized Delivery Conditions: Available in BK, GBK, BKS, NBK, and Nbk conditions per customer needs.
OEM Service Available: Supports custom manufacturing requirements for specific applications.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: OEM Service AvailableExport Year: 2013-08-01 CertifiedNearest Port: shanghaiAverage Response Time: ≤6.53h 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 are the main applications of this pipe?
A:
It is widely used in automotive fuel systems, hydraulic and pneumatic lines, heat exchangers, aerospace, and construction machinery.
Q:What materials are available?
A:
We offer Carbon Steel, Alloy Steel, and Stainless Steel in various grades such as St35, 45, 52, 304, and 316L.
Q:What standards does the product meet?
A:
The pipes comply with international standards including DIN 2391, ASTM A519, JIS G3445, ISO 8535, and EN 10305.
Q:How is quality guaranteed?
A:
We conduct pre-production samples, final inspections before shipment, and 100% Eddy Current and size checks.
Q:What surface treatments are offered?
A:
Options include Bright Annealing, Black Phosphating, and Galvanizing to ensure low roughness and corrosion resistance.
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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