What are the available steel grades?

Available grades include 304, 304L, 316, 316L, 316Ti, 321, and 410, meeting standards like ASTM, EN, GB/T, and JIS.

What are the size specifications?

Outer diameter ranges from 0.1mm to 60mm, wall thickness from 0.05mm to 50mm, with special tolerances available upon request.

Size Customization Welded Stainless Steel Square 304 Pipe Tube Exhaust

Name: Size Customization Welded Stainless Steel Square 304 Pipe Tube Exhaust
Brand: Zhangjiagang Chewit International Co., Ltd.
SKU: 2021478635

Jiangsu, ChinaZhangjiagang Chewit International Co., Ltd.

US$3.00-10.00

1,000 kg

Product profile

Customization

Available

Type

Welded

Technique

ERW

Model NO.

304 304L 316 316L 316Ti 321 410

Material

Stainless Steel

Surface Treatment

Ba(Bright Annealed), Electrolytic Polishing

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry

Section Shape

Round

Standard

ASTM A269 A312 A249 A270 A554 A789 A790 A268

Delivery Condition

Ba, Polish

Steel Grade

304 304L 316 316L 316ti 321 410

Secondary or Not

Non-Secondary

Certificate

ISO 9001 Ts16949

Application

Automotive,Hydraulic System and Precision Device

Transport Package

Bundles or Boxes

Specification

OD0.1- 60mm

Trademark

Origin

China

HS Code

7304319000

Key features

High Precision Tolerance: Tolerance controlled at +/-0.05mm, with minimum +/-0.02mm for high accuracy.

High Pressure Resistance: Withstands high pressure suitable for hydraulic lines and demanding applications.

Multiple Steel Grades: Available in 304, 304L, 316, 316L, 316Ti, 321, and 410 stainless steel grades.

Customizable Dimensions: Outer diameter 0.1mm-60mm and wall thickness 0.05mm-50mm with special tolerances available.

Various Surface Treatments: Options include Bright Annealed, Electrolytic Polishing, and Pickled Annealed.

Wide Application Range: Suitable for automotive, hydraulic systems, aerospace, medical, and chemical industries.

Strict Quality Inspection: Double inspection by professional controllers with detailed test reports provided.

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: ≤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:Who are we?

We are based in Jiangsu, China, established in 2010, with 11-50 office staff and sales to global markets including Eastern Asia, Mid East, and Europe.

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 products 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 conditions, lower roughness, good mechanical performance, and professional inspection teams.

Q:What services can you provide?

We accept delivery terms like FOB, CFR, CIF, EXW, DDP, DDU; payment in USD, EUR, HKD, CNY via T/T, L/C, MoneyGram; and speak English, Chinese, Spanish, and Japanese.