What standards does the product meet?

The product meets ASTM A519 standards and is certified under ISO 9001 and TS16949.

Where is the company located?

The company is based in Zhangjiagang City, Jiangsu, China, near the Yangtze River and major ports.

High Quality Cold Drawn Precision Seamless Alloy Steel Pipe Tube

Name: High Quality Cold Drawn Precision Seamless Alloy Steel Pipe Tube
Brand: Zhangjiagang Chewit International Co., Ltd.
SKU: 2021727275

Jiangsu, ChinaZhangjiagang Chewit International Co., Ltd.

US$2.50-7.00

1,000 kg

Product profile

Customization

Available

Type

Seamless

Technique

Cold Drawn

Model NO.

4130 4140 42CrMo 30CrMo 16Mn

Material

Alloy Steel

Surface Treatment

Slightly Oiled

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry

Section Shape

Round

Standard

ASTM A519

Delivery Condition

Bk (+C) Bkw (+LC) Bks (+Sr) Gbk (+a) Nbk (+N)

Steel Grade

4130/30CrMo/4140/42CrMo

Certificate

ISO 9001 Ts16949

Secondary or Not

Non-Secondary

Application

Automotive, Hydraulic System and Precision Device

MOQ

1ton

Transport Package

Plywood Box or Bundles

Specification

OD 2-60mm

Trademark

CW/OEM

Origin

China

HS Code

7304319000

Key features

High Strength Alloy Steel: 4140/42CrMo grades offer superior strength, fracture resistance, and impact tolerance.

Cold Drawn Precision: Manufactured via cold drawing for tight tolerances and smooth surface finish.

Versatile Applications: Ideal for automotive, hydraulic systems, aerospace, oil & gas, and machinery.

Multiple Delivery Conditions: Available in BK, BKS, GBK, NBK, and QT states to suit specific needs.

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

ISO Certified: Manufacturing process certified under ISO 9001 and TS16949 standards.

Customizable Grades: Steel grades 4130 and 4140 available with specific chemical compositions.

Global Shipping Terms: Flexible delivery options including FOB, CFR, CIF, DDP, and DDU.

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: ≤5.61h 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 main applications for this steel pipe?

It is widely used in commercial and military aircraft, automotive, machine tools, hydraulic systems, oil and gas industries, and agricultural defense.

Q:What delivery conditions are available?

Options include Cold drawn/hard (+C), Cold drawn/soft (+LC), Cold drawn and stress relieved (+SR), Annealed (+A), Normalized (+N), and Quenched and Tempered (QT).

Q:How do you ensure product quality?

We conduct a pre-production sample check before mass production and perform a final inspection before shipment.

Q:What are the accepted payment terms?

We accept T/T, L/C, MoneyGram, and various currencies including USD, EUR, HKD, and CNY.

Q:What is the minimum order quantity?

The minimum order quantity is 1 ton.