What are the available delivery conditions?

Delivery conditions include BK (+C), BKW (+LC), BKS (+SR), GBK (+A), and NBK (+N).

What are the major inspection items?

Tensile strength, Yield strength, Elongation, Flattening, Flaring, Chemical analysis, Eddy Current Test 100%, Size and surface checking 100%.

What is the average lead time?

Peak Season Lead Time: one month; Off Season Lead Time: one month.

Customized Carbon Welded Metal Steel Pipes for Automobile Frame

Name: Customized Carbon Welded Metal Steel Pipes for Automobile Frame
Brand: Zhangjiagang Chewit International Co., Ltd.
SKU: 2133672775

Jiangsu, ChinaZhangjiagang Chewit International Co., Ltd.

US$1.50-7.00

1,000 kg

Product profile

Customization

Available

Type

Seamless or Welded

Technique

Cold Drawn

Model NO.

Customized

Material

Carbon

Surface Treatment

Bright Annealing,Black Phosphating,Galvanizing

Usage

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

Section Shape

Round

Standard

DIN2393 2394

Delivery Condition

Bkw, Bkw, Nbk,+Cr1 +Sr,Cold Drawn

Steel Grade

St34-2 St37-2 St44-2 St52-3

Certificate

ISO 9001 Ts16949

Secondary or Not

Non-Secondary

Application

Automotive,Hydraulic System and Precision Device

Od

2-60mm

Wt

0.4-10mm

Transport Package

Plywood Box or Bundles

Specification

OD10-55mm

Trademark

Origin

China

HS Code

7304319000

Key features

Customized Steel Pipes: Available in seamless or welded types with various surface treatments and steel grades.

Wide Dimension Range: Outer diameter from 2mm to 60mm and wall thickness from 0.4mm to 10mm.

Multiple Certifications: ISO 9001 and TS16949 certified for automotive and hydraulic applications.

Comprehensive Inspection: 100% Eddy Current Test and size/surface checking with EN 10204 3.1 certificates.

Diverse Application Scope: Suitable for automotive, hydraulic systems, aerospace, and marine industries.

Advanced Manufacturing: Cold drawn process with special oil treatment for low roughness and high performance.

Flexible Delivery Terms: Supports FOB, CFR, CIF, EXW, DDP, and DDU terms with multiple payment options.

Quality Guarantee: Pre-production samples and final inspections before shipment ensure product reliability.

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: ≤6.72h 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, starting from 2010, selling to Eastern Asia, Mid East, Eastern Europe, Southeast Asia, Northern Europe, Domestic Market, South America, Western Europe, and other regions. There are total about 11-50 people in our office.

Q:How can you guarantee quality?

Always a pre-production sample before mass production; Always final Inspection before shipment.

Q:What can you buy from us?

Steel Pipe, Seamless Pipe, Hydraulic Oil Tube, Precision Tube, Stainless Steel Tube.

Q:Why should you buy from us not from other suppliers?

Production: Advanced production line and drawing with special oil to make the surface in best condition. Lower roughness and good mechanical performance. Inspection before delivery: Professional team for inspection and randomly check.

Q:What services can you provide?

Accepted Delivery Terms: FOB,CFR,CIF,EXW,DDP,DDU; Accepted Payment Currency:USD,EUR,HKD,CNY; Accepted Payment Type: T/T,L/C,MoneyGram; Language Spoken:English,Chinese,Spanish,Japanese.