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ASTM A789 Polished Automotive Engineering Stainless Welded Steel Tube
US$3.00-10.00
500 kg
Product profile
Customization
AvailableType
WeldedTechnique
Arc WeldingModel NO.
STW-24Material
Stainless SteelSurface Treatment
Ba, PolishUsage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Mining, Special PurposeSection Shape
RoundStandard
ASTM A269 ,A312, A249 ,A554 ,A789,A790,A268Delivery Condition
Ba, PolishSteel Grade
304, 304L, 316, 316LCertificate
ISO 9001 Ts16949Secondary or Not
Non-SecondaryApplication
Precision ApplicationTransport Package
Bundles or BoxesSpecification
OD0.1- 60mmOrigin
ChinaHS Code
7306610000Key features
Precision Dimensional Tolerance: OD tolerance +/-0.05mm and ID tolerance +/-0.05mm for high-precision applications.
Advanced Surface Treatment: Sophisticated bright annealing technology ensures excellent mechanical performance and surface finish.
Wide Material Selection: Available in 304, 304L, 316, and 316L stainless steel grades to meet diverse corrosion needs.
Flexible Customization: Custom sizes, grades, and special tolerances are available upon request.
Versatile Application Scope: Suitable for automotive, aerospace, food/beverage, medical, and hydraulic systems.
Strict Quality Control: Double inspection by professional quality controllers ensures product reliability.
Multiple Delivery Formats: Available in coils, long straight pieces, or short lengths based on customer requirements.
Comprehensive Certification: Certified under ISO 9001 and TS16949 standards for quality assurance.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: OEM Service AvailableExport Year: 2013-08-01 CertifiedNearest Port: shanghaiAverage Response Time: ≤7.52h 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 stainless steel grades are available?
A:
We offer 304, 304L, 316, and 316L stainless steel grades to suit various environmental and mechanical requirements.
Q:What are the standard tolerances for OD and ID?
A:
The standard tolerance is +/-0.05mm for both Outer Diameter (OD) and Inner Diameter (ID).
Q:Can you provide custom sizes or special tolerances?
A:
Yes, other sizes, grades, and special tolerances are available upon request.
Q:What surface treatments are offered?
A:
We provide Ba finish, Polish, Bright Annealed, Annealed & Pickled, Bright Annealed + Fine polishing, and Electropolishing.
Q:What are the main applications for these tubes?
A:
Applications include automotive engineering, aerospace, food/beverage, medical, hydraulic systems, and heat exchangers.
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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