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ASTM A312 A213 Bright and Clean Inner Surface Stainless Tube
US$3.00-20.00
500 kg
Product profile
Customization
AvailableType
SeamlessTechnique
Cold DrawnMaterial
Stainless SteelUsage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Mining, Special PurposeSection Shape
RoundStandard
ASTM A269 ,A312, A249 ,A554 ,A789,A790,A268Delivery Condition
Ap, Ba, Cfa, CfpSteel Grade
304, 304L, 316, 316LCertificate
ISO 9001 Ts16949Secondary or Not
Non-SecondaryApplication
Precision ApplicationTransport Package
Bundles or BoxesSpecification
OD1-250mmOrigin
ChinaHS Code
7306610000Key features
Bright Annealing Technology: Sophisticated process ensures good mechanical performance and free flaring, flattening, and bending.
High Precision Tolerance: OD and ID tolerance within +/-0.05mm with special tolerance available upon request.
Wide Material Range: Available in 304, 304L, 316, 316L stainless steel grades with various standard options.
Versatile Applications: Suitable for hydraulic, automotive, boiler, oil/gas drilling, mining, and semiconductor industries.
Customizable Sizes: OD from 1mm to 250mm and WT from 0.05mm to 50mm available upon request.
Strict Quality Control: All products undergo double inspection by professional quality controllers before delivery.
OEM Service Available: Customized manufacturing services are provided to meet specific customer requirements.
ISO Certified Quality: Certified under ISO 9001 and TS16949 standards for consistent product quality.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: OEM Service AvailableExport Year: 2013-08-01 CertifiedNearest Port: shanghaiAverage Response Time: ≤6.94h 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 available material grades?
A:
We offer 304, 304L, 316, and 316L stainless steel grades.
Q:What is the size range for the tubes?
A:
Outer diameter ranges from 1mm to 250mm, and wall thickness from 0.05mm to 50mm.
Q:Can you provide custom sizes and tolerances?
A:
Yes, other sizes, grades, and special tolerances are available upon request.
Q:What is the lead time for orders?
A:
The average lead time is one month for both peak and off-peak seasons.
Q:Do you offer OEM services?
A:
Yes, OEM service is available for our customers.
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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