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DIN2391 St37.4 High Pressure Carbon Fuel CNG Steel Pipe
US$10.50-11.00
1,000 kg
Product profile
Customization
AvailableType
SeamlessTechnique
Cold DrawnModel NO.
CNG-2Material
Carbon SteelSurface Treatment
OiledUsage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special PurposeSection Shape
RoundDelivery Condition
Nbk,+NSteel Grade
DIN 2391 St 37.4 Nbk En 10305-1 E235 +N NFA 49-3Certificate
ISO 9001 Ts16949Secondary or Not
Non-SecondaryApplication
Automotive,Hydraulic System and Precision DeviceTransport Package
Bundles or BoxesSpecification
OD6mm, WT1mmOrigin
ChinaHS Code
7304319000Production Capacity
1000ton/MonthKey features
High Pressure Capability: Working pressure up to 389 Bars with burst pressure of 1680 Bars.
Strict Quality Testing: 100% Eddy current test performed on all pipes before delivery.
Certified Material Grade: Manufactured to DIN 2391 St 37.4 and EN 10305-1 standards.
Versatile Application: Suitable for automotive, hydraulic systems, oil/gas drilling, and machinery.
OEM Service Available: Customization services including specific delivery conditions and grades.
Precision Manufacturing: Cold drawn seamless technique ensures high dimensional accuracy.
Comprehensive Inspection: Double inspection by professional quality controllers with vivid reports.
Flexible Length Options: Pipe length can be customized according to specific customer requests.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: OEM Service AvailableExport Year: 2013-08-01 CertifiedNearest Port: shanghaiAverage Response Time: ≤6.33h 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 working pressure of the pipe?
A:
The pipe has a working pressure of 389 Bars and a burst pressure of 1680 Bars.
Q:What material standards does this pipe meet?
A:
It meets DIN 2391 St 37.4, EN 10305-1 E235 +N, and NFA 49-310 TU37B standards.
Q:Is OEM service available for this product?
A:
Yes, OEM service is available, including customization for delivery conditions and steel grades.
Q:How is the quality of the pipes ensured?
A:
All products undergo 100% Eddy current testing and double inspection by professional quality controllers.
Q:What is the lead time for production?
A:
The average lead time is one month for both peak and off-peak seasons.
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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